Addendum to Initial Environmental Examination
Project Number: 47069-002 April 2020
PRC: Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project
Prepared by the Hebi City Government for the Asian Development Bank, with assistance from ESD Group Limited.
This addendum to initial environmental examination is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature.
In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area.
Addendum to Initial Environmental Examination
Project number: 47069-001 December 2019; revised January and finalized April 2020
People’s Republic of China: Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project
Prepared by the Hebi City Government for the Asian Development Bank, with assistance from ESD Group Limited
This is an addendum IEE to the EIA originally posted in September 2015 available on https://www.adb.org/sites/default/files/project-document/174834/47069-002-eia-02.pdf
CURRENCY EQUIVALENTS (As of 9 December 2019) Currency Unit – yuan (CNY) CNY 1.00 = $ 0.1422 $ 1.00 = CNY 7.0348
ABBREVIATIONS
ADB Asian Development Bank IMn Permanganate index BOD5 5-day biochemical oxygen demand LIEC Loan implementation environmental consultant CNY Chinese Yuan MEP Ministry of Environment Protection COD Chemical oxygen demand MIS Management Information System DO Dissolved oxygen NWP National Wetland Park EA Executing Agency PEP Precipitation EIA Environmental impact assessment PM2.5 Particulate matter with diameter<2.5μ EIR Environmental Impact Report PM10 Particulate matter with diameter<10μ EIT Environmental Impact Table PMO project management office EMP Environmental Management Plan PRC People’s Republic of China EMA Environment monitoring agency RP Resettlement Plan EPB Environmental Protection Bureau SFA State Forestry Administration FSR Feasibility Study Report SWCR Soil and Water Conservation Report FYP Five Year Plan SOE State Owned Enterprise GDP Gross domestic product SPS Safeguard Policy Statement GHG Greenhouse gas TN Total Nitrogen GRM Grievance redress mechanism TP Total Phosphorus HCG Hebi City Government TSP Total Suspended Particulates HPG Henan Provincial Government WHO World Health Organization IA Implementing Agency WRB Water Resources Bureau WWTP Wastewater Treatment Plant
WEIGHTS AND MEASURES
oC degree centigrade m3 cubic meter dB decibel m3/a cubic meter per annum ha hectare (10,000 m2) m3/d cubic meter per day kg kilogram mg/kg milligram per kilogram km kilometer mg/l milligram per liter km2 square kilometer mg/m3 milligram per cubic meter kW kilowatt mu Chinese land unit (1 ha=15 mu) L liter MW megawatt (1 million watts) m meter t metric ton (1,000 kg) m2 square meter t/a ton per annum
NOTE
(i) In the report, “$” refers to US dollars.
This addendum IEE is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section of this website.
In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area.
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Contents
I. EXECUTIVE SUMMARY ...... 4 A. INTRODUCTION ...... 4 B. THE PROJECT SCOPE CHANGE ...... 4 C. PROJECT FEATURES AND BENEFITS ...... 5 D. BASELINE ENVIRONMENT ...... 5 E. POTENTIAL ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES...... 6 F. CLIMATE CHANGE ...... 6 G. INFORMATION DISCLOSURE AND PUBLIC CONSULTATION ...... 7 H. GRIEVANCE REDRESS MECHANISM ...... 7 I. ENVIRONMENTAL MANAGEMENT PLAN ...... 7 J. RISKS AND ASSURANCES ...... 8 K. CONCLUSION ...... 8 II. INTRODUCTION ...... 9 III. POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK...... 14 A. POLICY AND PLANNING CONTEXT ...... 14 B. LEGISLATIVE FRAMEWORK FOR ENVIRONMENT IMPACT ASSESSMENT IN THE PRC ...... 14 C. INTERNATIONAL AGREEMENTS...... 16 D. APPLICABLE PRC AND ADB POLICIES AND ASSESSMENT CATEGORIES ...... 16 E. ASSESSMENT STANDARDS ...... 16
IV. DESCRIPTION OF THE PROJECT SCOPE CHANGE ...... 20 A. PROPOSED PROJECT SCOPE CHANGE ...... 20 B. QIBIN DISTRICT URBAN ENVIRONMENTAL MANAGEMENT SUBPROJECT ...... 25 C. QIHE RIVER ECOLOGICAL WETLAND RESERVE REHABILITATION SUBPROJECT ...... 35 D. INSTITUTIONAL ARRANGEMENT FOR CONSTRUCTION AND OPERATION ...... 64 E. ASSOCIATED FACILITIES...... 64
V. DESCRIPTION OF THE ENVIRONMENT ...... 66 A. ENVIRONMENTAL SETTING ...... 66 B. PHYSICAL ENVIRONMENT AT THE PROJECT SITES ...... 68 C. ECOLOGICAL RESOURCES ...... 72 D. SOCIO-ECONOMIC CONDITIONS ...... 82 E. PROTECTED AREAS, RESERVES, AND PHYSICAL CULTURAL RESOURCES ...... 82
VI. ANTICIPATED ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES ...... 84 A. POSITIVE IMPACT AND ENVIRONMENTAL BENEFITS ...... 84 B. POTENTIAL ADVERSE IMPACT AND MITIGATION MEASURES ...... 85 C. POTENTIAL INDIRECT, INDUCED, AND CUMULATIVE IMPACTS...... 103 D. CLIMATE RISK VULNERABILITY ASSESSMENT ...... 103
VII. ANALYSIS OF ALTERNATIVES ...... 106 A. NO PROJECT ALTERNATIVE ...... 106 B. ALTERNATIVES FOR QIBIN DISTRICT URBAN ENVIRONMENTAL MANAGEMENT ...... 106 C. ALTERNATIVES FOR QIHE RIVER WETLAND REHABILITATION ...... 107
VIII. PUBLIC CONSULTATION, PARTICIPATION AND INFORMATION DISCLOSURE ...... 108 A. INFORMATION DISCLOSURE ...... 108 B. QUESTIONNAIRE SURVEY ...... 110 C. INTERVIEW AND DISCUSSION FORUMS ON THE ENVIRONMENTAL ASSESSMENTS ...... 110 D. FUTURE INFORMATION DISCLOSURE AND PUBLIC CONSULTATION ...... 111
IX. GRIEVANCE REDRESS MECHANISM ...... 113 X. ENVIRONMENTAL MANAGEMENT PLAN ...... 113 XI. CONCLUSIONS ...... 114 ATTACHMENT 1. ENVIRONMENTAL MANAGEMENT PLAN ...... 115
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A. OBJECTIVES ...... 116 B. ORGANIZATIONS AND THEIR RESPONSIBILITIES FOR EMP IMPLEMENTATION ...... 116 C. POTENTIAL IMPACTS AND MITIGATION MEASURES ...... 118 D. MONITORING AND REPORTING...... 130 E. TRAINING ...... 133 F. PUBLIC CONSULTATION ...... 134 G. GRIEVANCE REDRESS MECHANISM ...... 135 H. COST ESTIMATES ...... 137 I. MECHANISMS FOR FEEDBACK AND ADJUSTMENT ...... 138
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I. EXECUTIVE SUMMARY
A. Introduction
This addendum IEE to the Environmental Impact Assessment (EIA) is prepared for the scope changes of the Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project (the Project).
The Hebi City Government (HCG) has requested the Asian Development (ADB) to provide lending support to implement the Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project. The project EIA, including Environmental Management Plan (EMP) was prepared in accordance with the ADB Safeguard Policy Statement (2009).
The loan for $150 million was approved by ADB Board on 29 June 2016. The loan became effective on 13 March 2017. During the implementation of the loan project, due to land availability and changes in Qibin District’s urban development plan, minor changes in the project scope was proposed (Table II-1).
Under ADB’s Safeguard Policy Statement (SPS, 2009, the project was initially categorized as category “A” for environment, requiring preparation of an EIA. The EIA subsequently clarified that the project has relatively low environmental risks and which are commensurate with the SPS category “B” for environment. The newly added and re-designed subprojects are the same as original subprojects in terms of the nature and seriousness of its environmental impacts. Thus, an addendum IEE including an environmental management plan (EMP) is requested by the ADB Special Project Administration Mission, 19 – 23 August 2019.
Environmental due diligence has been conducted for the scope changes by loan implementation consultants including environment consultant and wetland consultant in September-December 2019. This addendum IEE has been prepared in compliance with the ADB’s SPS requirements. It summarizes the findings of the environmental due diligence conducted by the loan implementation consultant including: (i) review of Feasibility Study Reports, Soil and Water Conservation Report, and two domestic EIAs; (ii) fieldwork conducted between August 2019 and October by a consultant team; (iii) discussions with key project stakeholders, including amongst others, Hebi EPB, Forest Bureau, Construction Bureau, Land administration Bureau, Water Resource Bureau; (iv) consultations with local affected people by the PIAs with assistance from loan implementation consultants.
B. The Project Scope Change
The project scope changes include:
(i) Qibin District Urban Environmental Management Subproject. To cancel four contract packages related to stormwater pipeline and sewer construction in Qibin District under component (iii) due to changes in the urban development plan
(ii) Qibin District Urban Environmental Management Subproject. To re-design four contract packages related to stormwater pipeline and sewer construction in Qibin district under project’s component (iii): wastewater and solid waste management. The contract packages is re-designed for installation of wastewater and stormwater collection pipes and including associated road construction in Qibin District in accordance with the changed urban development plan.
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(iii) Qihe River Ecological Wetland Reserve Rehabilitation Subproject. To add three new subprojects into project’s component (i): restoration of vegetation and wetlands in the upper Qihe River basin. The 3 new subprojects include: (1) Qihe River south bank ecological wetland restoration and ecological park construction, including (a) riverbank restoration and revegetation of the buffer zones; and (b) restoration of wetlands. (2) Fu Mountain ecological reserve restoration, including greening; (3) Qihe River Panshitou Reservoir environmental improvement, including (a) rehabilitation of hills, quarries, and creeks and installation of an ecological irrigation system for the rehabilitation; and (b) installation of small-scale ecological wastewater treatment facilities.
C. Project Features and Benefits
Activities of the new subprojects mainly include: (i) construction road network in Qibin District; and (ii) revegetation and restoration of wetlands in the Upper Qihe River basin.
The road component will reduce traffic congestion, and help the Hebi City establish efficient, safe, sustainable and environmentally friendly urban transport systems, including public transportation facilities, pedestrian crossings, traffic management facilities and landscaping. The sewer collection, and stormwater drainage component will benefit the local environment, economies and residents’ health and safety.
The revegetation and restoration of wetland components will benefits the local and global environment, include: (i) soil erosion in the Qi catchment reduced by 810 tons per year, due to the re-vegetation of barren hills and conversion of abandoned farmland to forest; (ii) carbon sink established due to the re-vegetation activities, which will sequester approximately 1,995 tons CO2e per year. (Section VI.D); (iii) prevent 6,600 t/d untreated wastewater from directly discharging into Qihe River, and thus reduce 521t/a of BOD5, 993t/a of COD, 62t/a of NH3-N discharging into Qihe River; (iv) protect biodiversity by creation and restoration of 27.7 ha of habitat, and construction of 42.50ha wetland park.
D. Baseline Environment
The project area comprises an 83-km section of the Qi River. Panshitou Reservoir, a part of the project area, is situated along the Qihe River. The rest project area begins downstream of the dam and extends to the confluence of the Qi and Wei Rivers. The river within the project area can be broadly divided into three sections: the upper section (23.7 km), middle section (14.3 km) and lower section (45 km). The upstream section comprises a shallow, swift-flowing river less than 80 m wide, with rocky substrate, interspersed with slower- flowing sections with deeper pools. River banks are rocky and vegetated or support villages and associated agricultural land. The middle section of the Qihe is urbanized and highly populated. The mainstream is over 100 m wide and almost entirely embanked. Large towns occur along the riverbanks and tributaries. Most tributaries have been converted to artificial canals and are dredged and embanked. The lower section supports few settlements and flows through agricultural land. Here the river is slow-flowing and banks are partly vegetated. All surface water flow in the Qihe is heavily regulated, by Panshitou Reservoir in the headwaters, and approximately nine barrages along the mainstream.
Project sampling of environmental parameters indicated the following. For surface water quality, samples of Qihe River complied with Grade II of the PRC standard GB 3838- 2002. For ambient air quality, samples complied with Class II air quality standards and the World Bank Group’s (EBG) Environmental Health and Safety (EHS) interim targets. For ecology, the Qihe River wetland supports significant biodiversity conservation values.
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E. Potential Environmental Impacts and Mitigation Measures
The major safeguards issues during construction include: permanent and temporary acquisition of land and population resettlement, disturbance to migratory and/or nesting waterbird communities, earthwork and soil erosion, noise pollution, air pollution, surface and groundwater pollution, solid waste disposal, and occupational and community health and safety.
During operation, the main potential adverse impacts include: traffic noise and air quality at some sensitive residential areas; surface water pollution from stormwater, wastewater and solid waste; possible effects on wetland habitats and fauna through noise and water pollution from increased tourism activities.
Mitigation and monitoring measures were defined for all identified impacts, and are included in the environmental management plans (EMP). The EMP sets out the procedures and plans to carry out mitigation measures and monitoring requirements during sequential stages of the project (pre-construction, construction and operational phases). It consists of two plans, one for implementing mitigation measures and the other for carrying out environmental monitoring. For each impact, appropriate mitigation measures are described. Internal, external and compliance monitoring and supervision will be undertaken to ensure that environmental impacts will be minimized to acceptable levels.
The domestic EIAs and this addendum IEE conclude that all identified impacts can be mitigated to acceptable levels if the measures defined in the EMP are carefully implemented and monitored. The environmental mitigation measures will be incorporated in the bidding documents and bill of quantities of the civil works contracts. International and domestic environment consultants will be recruited under the project management consultancy services to prepare and supervise the implementation of the environmental management plan, monitor the environmental and social impacts, and prepare related reports. Hebi environmental protection bureaus will support the PMO, PIUs, contractors and CSCs in undertaking the environmental management plans. Capacity building in environmental management, a detailed training program for which has been developed in the EMP, will be provided for the PMO, PIUs, contractors, CSCs and operators, to ensure adequate institutional capacity in managing the environmental impacts.
14. A climate risk vulnerability assessment was conducted to identify the threat that climate change presents to project viability, assuming a design life of 40–50 years. Modeling indicates that between 2020 and 2070, mean annual temperatures will rise, the risk of extreme climate events (including severe storms, floods, and drought) will increase, and that variability in precipitation will increase, causing more rainy days and dry days. Such events could cause: flood volumes which exceed the capacity of the project pipelines and, changes in temperature or water availability which affect the growth and survival of the planted vegetation
F. Climate Change
15. The project includes the following measures to accommodate these risks: (i) the embankments, channels and pipelines have been designed to PRC flood protection standards, taking into account local topography and climate; (ii) plant species selected for revegetation of the barren hills will comprise species suited to the seasonally dry climate, harsh winters, and shallow, rocky soils of the area. Overall, the existing project design is oriented to achieve resilience to climate impacts. Improved capacity to manage wastewater are integrated in the project design as specific outputs, while improved management of wetlands in the upper Qi River, and re-vegetation of surrounding hillsides, will improve water retention and filtration. Non-structural measures will supplement these measures, including training in wetland and water resources management.
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G. Information Disclosure and Public Consultation
16. Information disclosure of project information and related environmental issues was conducted twice on the local public media website (http://www.EIAfans.com) in November 2019 and March 2019 respectively. The first time was at the commencement of domestic environmental assessment preparation and the second was when the draft domestic assessments were completed. Besides the website disclosure, the project information was also publicized on local newspapers and village community posters in March 2019. No objections to the project were received.
A questionnaire survey by the EIA institute was conducted in March 2019 of potential affected residents and groups in Qibin District and Qi County. 100 questionnaires were issued and 100% were returned. The majority (93%) reviewed the project would be beneficial to local environment. 100% are very supportive to the project.
Interview and meetings with 17 (Qibin District) and 18 (Qi County) staff of local government departments and village representatives were held on 5 September 2019. Representatives from the PIUs explained the project scope, EIA institutes explained the findings from domestic EIAs on potential environmental impacts and mitigation measures. The LIEC explained the EMP and project-specific GRM. Concern was raised by the forum participants in Qi County in include domestic solid waste issue in the river courses, and the survival rate of the planted trees. All participants expressed support for the project. Measures to address these concerns have been incorporated in the mitigation measures (EMP; Attachment 1).
H. Grievance Redress Mechanism
A project-specific grievance redress mechanism (GRM) has been prepared for the project. The GRM provides people affected by the project with a channel to register their grievance. The GRM comprises a series of time-based steps to ensure any concerns are quickly and effectively addressed. The GRM will be coordinated by the Hebi Project Management Office (PMO). It will include a complaint center with hotline for receiving environmental and resettlement grievances and will be accessible to diverse members of the community. Multiple points of entry, including face-to-face meetings, written complaints, telephone conversations, or e-mail, are included in the GRM. The GRM is included in the EMP.
I. Environmental Management Plan
As part of this EIA, a project environmental management plan (EMP) has been developed (Attachment 1). This describes the project requirements for environmental mitigation measures, monitoring, reporting, roles and responsibilities, budget, and the project GRM. The EMP will be the key guiding document for environmental-related issues for project construction and operation. It will be included as an annex in all bidding and contract documents. The contractors will be made aware of their obligations to implement the EMP and to budget EMP implementation costs in their proposals. HCG (through the PMO) and the implementing agencies (through the project implementing units; PIUs) will assume overall responsibility for implementing, supervising, monitoring and reporting on the EMP. PMO and PIU capacity to implement the EMP will be strengthened through capacity building and training activities defined in the EMP. The PMO and PIUs will appoint qualified environmental staff to coordinate and monitor EMP implementation. A loan implementation environmental consultant (LIEC) will be funded under the ADB loan to assist the PMO and PIU’s in EMP implementation, environmental training and semi-annual environmental monitoring report preparation.
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J. Risks and Assurances
The Project EIA assessed the risk and proposed assurances such as designated PMO environmental officers, recruitment environmental and wetland consultant and etc.. Since the project features and project area are similar to the original proposal. No additional assurances is needed.
K. Conclusion
It is concluded that full and effective implementation of the project EMP (Attachment 1), together with the training and project assurances, will minimize the environmental risks of the project and achieve compliance with the policy and regulatory standards applied in this addendum IEE.
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II. INTRODUCTION
This addendum IEE to the Environmental Impact Assessment (EIA) is prepared for the scope changes of the Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project (the Project).
Environmental categorization and assessment at appraisal. The Project was classified by ADB as Environment Category A. The project EIA, including Environmental Management Plan (EMP) was prepared in accordance with the ADB Safeguard Policy Statement (2009).
Environmental categorization and assessment for the project scope change. The project EIA stated that “Under ADB’s Safeguard Policy Statement (SPS, 2009) the project was initially categorized as category “A” for environment, requiring preparation of an EIA. The EIA subsequently clarified that the project has relatively low environmental risks and which are commensurate with the SPS category “B” for environment “(Refer footnote 2 of the Project EIA)1. The newly added and re-designed subprojects are the same as original subprojects in terms of the nature and seriousness of its environmental impacts. Thus, an addendum IEE including an environmental management plan (EMP) is requested by the ADB Special Project Administration Mission, 19 – 23 August 2019.
Environmental due diligence has been conducted for the scope changes by loan implementation consultants including environment consultant and wetland consultant in September-December 2019. This addendum IEE has been prepared in compliance with the ADB’s SPS requirements. It summarizes the findings of the environmental due diligence conducted for the minor changes in project scope.
The Project scope at appraisal (2015). The Hebi City Government (HCG) has requested the Asian Development (ADB) to provide lending support to implement the Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project. The impact of the project will be restored ecosystem services in the Qihe River basin and the outcome will be demonstrated integrated environmental management in the Qihe River basin in Hebi city. The project has four components:
(i) Restoration of vegetation and wetlands in the upper Qihe River basin; (ii) Improvement of flood management capacity of the lower Qihe River; (iii) Enhancement of wastewater and solid-waste management in the Qihe River basin, and (iv) Strengthening of technical and institutional support system and capacity for integrated management of the Qihe River basin.
Proposed project scope change. The loan for $150 million was approved by ADB Board on 29 June 2016. The loan became effective on 13 March 2017. During the implementation of the loan project, due to land availability and changes in Qibin District’s urban development plan, minor changes in the project scope was proposed (Table II-1) including:
(iv) Qibin District Urban Environmental Management Subproject. To cancel four contract packages related to stormwater pipeline and sewer construction in Qibin District under component (iii). WW-CW-02 due to unavailability of land caused by the changed urban development plan; and WW-CW-04, WW-CW- 09, and WW-CW-10 due to changes in the urban development plan
1 EIA report for the Henan Hebi Qihe River Environmental Improvement and Ecological Conservation Project https://www.adb.org/sites/default/files/project-document/174834/47069-002-eia-02.pdf
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(v) Qibin District Urban Environmental Management Subproject. To re-design four contract packages (WW-CW-03, WW-CW-05, WW-CW-06, and WW-CW- 07) related to stormwater pipeline and sewer construction in Qibin district under project’s component (iii): wastewater and solid waste management. The contract packages is re-designed for installation of wastewater and stormwater collection pipes and including associated road construction in Qibin District in accordance with the changed urban development plan.
(vi) Qihe River Ecological Wetland Reserve Rehabilitation Subproject. To add three new subprojects into project’s component (i): restoration of vegetation and wetlands in the upper Qihe River basin. The 3 new subprojects include: (1) Qihe River south bank ecological wetland restoration and ecological park construction, including (a) riverbank restoration and revegetation of the buffer zones; and (b) restoration of wetlands. (2) Fu Mountain ecological reserve restoration, including greening; (3) Qihe River Panshitou Reservoir environmental improvement, including (a) rehabilitation of hills, quarries, and creeks and installation of an ecological irrigation system for the rehabilitation; and (b) installation of small-scale ecological wastewater treatment facilities
Table II-1 Summary of Project Scope Changes Output Original activities Activities after scope change 1 Ecological conservation and Ecological conservation and environmental environmental management of upper management of upper Qihe River and its Qihe River and its watershed enhanced watershed enhanced [Qibin District] 1.1 Qihe River Upstream Ecological Qihe River Ecological Wetland Reserve Protection Rehabilitation Subproject 1.1.1 Barren hill greening (1,346 ha; 19 hills) No change 1.1.2 Barren hill community maintenance No change (irrigation, pest control, patrol) 1.1.3 Barren hill monitoring of planted vegetation No change 1.1.4 Qihe River south bank ecological wetland restoration and ecological park construction, including (a) riverbank restoration and revegetation of the buffer zones; and (b) restoration of wetlands (c) Fu Mountain ecological reserve restoration, including greening 1.1.5 Qihe River Panshitou Reservoir environmental improvement, including (a) rehabilitation of hills, quarries, and creeks and installation of an ecological irrigation system for the rehabilitation; and (b) installation of small-scale ecological wastewater treatment facilities 1.2 Restoration and management of pilot Restoration and management of pilot Qihe Qihe River National Wetland Park River National Wetland Park 1.2.1 Habitat restoration and creation (marsh No change land restoration 36.3 ha; (habitat creation:12.3 ha) 1.2.2 Protection of flagship species (fencing No change 1,589 m; signage: 300) 1.2.3 Re-vegetation and restoration of No change riverbanks (3.9 km) 1.2.4 Re-vegetation (49.2 ha) No change 1.2.5 Infrastructure: (i) upgrade existing public No change access road (3.2 km) and patrol road (6.3 km); construct new patrol road (2.5 km) and walking paths (4.4 km); (ii) research and monitoring center (500m2), field
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Output Original activities Activities after scope change stations (160m2), bird hides, ecological monitoring equipment; (iii) management and service facilities (management office, public toilets, power and water supply, drainage) 1.2.6 Establishment of park management No change agency and first five-year management plan 1.2.7 Park monitoring program No change 1.2.8 Community participation in park monitoring No change (local river guards) 2 Lower Qihe River Mainstream and No change tributaries improved [Qibin District, Qi County, Xun County] 2.1 Qihe Mainstream Watercourse No change Improvement in Qi County (21 km) 2.1.1 Mainstream bank stabilization (Gabion No change works – 14 locations along both banks; total works about 4.08 km ) 2.1.2 Crest road paving (42 km; 21 km along No change each bank) 2.2 Four Tributary Watercourse No change Improvement in Qi County 2.2.1 Channel widening, dredging, bank No change protection (Side River 9.5 km, Zhaojia Canal 9.8 km, Zhejing River 6.62 km, Hucheng River, including Longxui ditch with a length 5.92; total 31.84 km) 2.2.2 Riverside greening (Side River, Zhaojia No change Canal; total 11.5 km) 2.3 Five Canal Watercourse Improvement in No change Qibin District 2.3.1 Canal widening, dredging, bank protection No change (Tianlai 5.15 km, Mianfeng 0.97 km, Erzhi 0.73 km; total 6.852 km) 2.3.2 Canal repair (Sanzhi 2.84 km, Sizhi 1.6 km; No change total 4.44 km) 2.3.3 Riverside greening at a total length of No change 11.3km along Tianlai, Mianfeng, Erzhi Canals and Sanzhi and Sizhi Canals (up to 15 m width on each river side along Tianlai, Mianfeng, and Erzhi Canals, and up to 10 m width along Shanzhi and Sizhi Canals) 2.3.4 Supporting facilities (irrigation, bank-side No change walkways, landscaping) 3 Wastewater and Solid Waste Wastewater and Solid Waste Management in Management in the Qihe River Basin the Qihe River Basin improved improved 3.1 Qibin District Wastewater Management Qibin District Urban Environmental Management Subproject 3.1.1 Stormwater pipeline construction Stormwater pipeline construction (Dalaidian 33.87 (Dalaidian 7.76 km; Juqiao 73.77 km; total km) 81.53 km) 3.1.2 Sanitary sewer installation (Dalaidian Sanitary sewer installation 21.48 km; Juqiao 68.85 km; total 90.33 km. (i) Dalaidian 33.44km including 10.45km of roads Includes connection to Qibin WWTP + are under construction and 22.99 km to be planned Qishuiwan WWTP constructed. (ii) Juqiao 4.34 km
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Output Original activities Activities after scope change 3.1.3 13 roads construction with a total length of 22.93km in dalaidian 3.2 Qi County Wastewater Management No change 3.2.1 Qi County WWTP expansion (30,000 No change tons/d to 60,000 tons/d) 3.2.2 Stormwater pipeline construction (132.49 No change km) 3.2.3 Sanitary sewer installation (69.12 km) No change 3.3 Solid Waste Management [Qi County, No change Qibin District] 3.3.1 Urban–15 domestic waste transfer stations No change (capacity 20 t/d) including equipment for compaction, odor removal, 44 transport vehicles (Qi County) 3.3.2 Rural–upper Qihe: install litter bins, waste No change transport vehicles in 13 villages (Qibin District–6; Qi County–7) 3.3.3 Rural–lower Qihe: install litter bins, waste No change transport vehicles in 20 villages (Qi County) 3.3.4 Pilot community-led waste management No change system – awareness raising and waste collection (Qi County and Qibin District) 3.3.5 Domestic study tours for capacity building No change of relevant agencies and support the development of a better solid waste management system 4 Institutional and technical support No change system for integrated management of the Qihe River Basin improved [Qi County, Qibin District] 4.1 Qihe River Ecological Monitoring Program No change (ecology and hydrology) 4.2 Qihe River Basin Management Information No change System 4.1 Project start-up support consulting No change services 4.2 Loan implementation consulting services No change 4.3 External resettlement monitoring and No change evaluation 4.5 Training for project management and other No change training costs
The scope changed and newly added subprojects and activities are summarized in Table II-2.
Table II-2 Summary of Project Outputs and Subcomponents with Scope Changes Output Activities 1 Ecological conservation and environmental management of upper Qihe River and its watershed enhanced 1.1 Qihe River Ecological Wetland Reserve Rehabilitation Subproject 1.1.1 Wetland restoration and revegetation at south bank of Qihe River- Creation and restoration of 21.27ha of habitat, and revegetation of 59.15ha on south bank of Qihe River 1.1.2 Fu Mountain ecological reserve restoration - Revegetation for an area of 160.23ha including ecological forest area of 77.61ha and ecological forest area of 82.62ha 1.1.3 Ecological park construction - Construction of three wetland parks with total area of 60ha near Wanghe, Wangtan and Dujia villages respectively. Revegetation of 42.5ha including 2.03ha of aquatic and 40.47ha of terrestrial plants
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Output Activities 1.1.4 Infrastructure construction - Construction 40.69km of roads, installation of 3,804km of fencing and signage 1.2 Panshitou Reservoir Environment Improvement 1.2.1 Afforestation of islands and barren hills within the reservoir area (73.33ha). - Including the reservoir island, the hillside behind the island and two Peninsula barren hills 1.2.2 Afforestation of Barren slopes around reservoir area (27.20ha). including greening at slope of upstream of spillway, the exit slope, the slope of the left dam head, abandoned quarry sites during construction of the reservoir 1.2.3 Environment improvement of Qihe River and villages downstream of the Dam. Including (i) Remove 7,700t of waste and afforestation of 0.8ha at the area near Yangzhaigou village; (ii) Remove 3,300t of waste and afforestation of 12.87ha at the area near Gongjiazhuang village; (iii) Qihe River environment improvement to 1.6km downstream, wetland restoration 1.60ha, with 1,500 arbors and shrubs and 208,900 aquatic plants planted. 1.2.4 Abandoned quarry site slope stabilization and greening. Slope stabilization area 7.20ha, slope greening 10ha 1.2.5 Reservoir infrastructure. (i) Construction of buildings (1,339 m2) including upgrade gate chamber (1,230m2), newly build 4 safety monitoring rooms (60.8 m2), newly build 4 ecological toilets and a mobile power management room (48m2) (ii) Water supply pipelines (2.44km) for reservoir management rooms. (iii) Wharf upgrading and management office construction. Expand the existing floating wharf with 6 wooden platforms and construct an 2-floor management office which covers an area of 48m2 (iv) Roads. Repairing 1.95km and newly build 2.95km of roads with width of 6-8m. 3 Wastewater and Solid Waste Management in the Qihe River Basin improved 3.1 Qibin District Urban Environment Improvement 3.1.1 Stormwater pipeline construction. 33.87 km (DN600-1800) in Dalaidian Town Area and Juqiao Area in Qibin District 3.1.2 Sanitary sewer installation. 27.33km (DN400-1000) in Dalaidian Town Area and Juqiao Area in Qibin District 3.1.3 Roads. Construction of 13 roads with a total length of 22.93km in Dalaidian Town Source: summarized based on FSRs.
Basis of the Addendum IEE preparation. The addendum IEE was prepared based on the following environmental due diligence:
(i) Review of Feasibility Study Report (FSR) of Qibin Urban Environmental Management subproject prepared by Beijing Zhongjin Mindray Engineering Consulting Co., Ltd. (ii) Review of Soil and Water Conservation Report (SWCR) for the Qihe River Ecological Wetland Reserve Rehabilitation Subproject. (iii) Review of two domestic EIA reports prepared by the Henan Keren Science and Technology Co., Ltd in July 2019. (iv) Review of original Project EIA prepared by the PPTA team; (v) Fieldwork conducted between August 2019 and October by a consultant team for the loan project implementation; (vi) Discussions with key project stakeholders, including amongst others, Hebi EPB, Forest Bureau, Construction Bureau, Land administration Bureau, Water Resource Bureau; (vii) Consultations with local affected people by the PIAs with assistance from loan implementation consultants
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III. POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK
A. Policy and Planning Context
The project is conducted within the framework of, and contributes to implementation of, the following plans:
• 12th Five Year Plan for Environment Protection in Hebi City (2011-2015). This requires improvements of rivers flowing through the city and increasing investments in construction of supporting sewage pipe network. • Master Plan for Hebi City Qihe River Ecological Areas (2010–2020). This divides the Qihe River into three functional areas: ecosystem protection area in upstream; rehabilitation and utilization in midstream; and, utilization with protective measures in downstream. • Hebi Urban Master Plan (2007-2020). This defines objectives to strengthen the protection of biological resources, rehabilitate wetlands, and increase the forest coverage up to 45%. The Qihe River is listed as a priority for ecological protection. • River Rehabilitation Planning for Major Rivers in Hai River Basin in Hebi City of Henan Province (2013-2015). Under this plan, the upper Qi is required to meet the 50 year flood standard; and the lower section, Side River and Zhaojia Canal the 20 year standard. • Management Methods for Development and Protection of Qihe River (2002). This requires the development of the Qihe River to follow the principle of “coordinated development and environment protection”. • Measures for Qihe River Protection (2011). Defines three protection zones (Grades I–III) for the river.
B. Legislative Framework for Environment Impact Assessment in the PRC
The domestic environment impact assessments (DEIAs) conducted for the project were prepared under the EIA Law of 2003, Management Guideline on EIA Categories of construction Projects (2015), and other relevant laws and regulations (Table III-1 and Table III- 2).
Table III-1 Applicable Environmental Laws Title of the Law Year Environmental Protection Law 2015 Environmental Impact Assessment Law 2018 Water Law 2016 Water Pollution Prevention and Control Law 2018 Air Pollution Prevention and Control Law 2018 Noise Pollution Control Law 2018 Solid Waste Pollution Prevention and Control Law 2016 Water and Soil Conservation Law 2011 Forest Law 2009 Wild Fauna Protection Law 2018 Cleaner Production Promotion Law 2012 Land Administration Law 2004 Circular Economy Promotion Law 2018 Protection of Cultural Relics Law 2017 Flood Control Law 1998 Urban and Rural Planning Law 2008
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Table III-2 Applicable Administrative Regulations Regulation Year Regulation on EIA of Plans and Programs 2009 Regulation on Environmental Protection Management for Construction Projects 2017 Directive on Wetland Protection and Management 2013 Regulation on Culture Heritage Protection 2017 Regulation on River Course Management 2017 Classification of Construction Project Environmental Protection Management (MEE) 2018 National Biodiversity Strategy and Action Plan (2011-2030) 2010 Requirement for Social Risk Assessment of Large Investment Projects 2012 National Biodiversity Strategy and Action Plan (2011-2030) 2010 National regulation for public consultation of EIAs 2019 Regulations on Scenic and Historic Areas 2006 Regulation on Hazardous Chemicals Safety Management 2011 Regulation on Wild Flora Protection 2017 Regulation on Wild Fauna Protection 2016 Regulation on Aquatic Wildlife Protection 2016 Regulation on Urban Water Supply 2018 Management of National Wetland Park 2018 Local Qihe River Protection Implementation Measures in Henan Province 2011
Implementation of the environmental laws and regulations is supported by a series of associated management and technical guidelines (Table III-3).
Table III-3 Applicable Environmental Impact Assessment Guidelines Guideline Year/Code Jurisdictional Division of Review and Approval of EIAs for Construction Projects 2009 Guideline on EIA Categories of Construction Projects 2018 Guideline on Public Consultation for EIA 2018 Technical Guideline on EIA: Outline HJ2.1-2016 Technical Guideline on EIA Regarding Atmospheric Environment HJ 2.2-2018 Technical Guideline on EIA Regarding Surface Water HJ/T 2.3-2018 Technical Guideline on EIA Regarding Acoustic Environment HJ 2.4-2009 Technical Guideline on EIA Regarding Ecological Impact HJ 19-2011 Technical Criterion for Ecosystem Status Evaluation HJ192-2015 Technical Specification on Water and Soil Conservation Plan GB50433-2008 Technical Guideline on Environmental Risk Assessment for Construction Project HJ/T 169-2004
The PRC environmental quality standard system that supports the environmental laws and regulations is classified into two categories by function: pollutant emission/discharge standards; and, ambient environmental standards (Table III-4).
Table III-4 Applicable Environmental Standards Standard Code Surface Water Quality Standard GB 3838-2002 Urban Ambient Acoustic Quality Standard GB 3096-2008 Underground Water Quality Standard GB/T 14848-2017 Ambient Air Quality Standard GB 3095-2012 Environmental quality standard for noise GB 3096-2008 Integrated Emission Standard of Air Pollutants GB 16297-1996 Integrated Wastewater Discharge Standard GB 8978-1996 Domestic Drinking Water Quality Standard GB 5749-2006 Emission Standards of Environment Noise for Boundary of Site Noise GB 12523-2011 Standard for pollution control on hazardous waste storage GB 18597-2013 Pollution control for storage and disposal site for industrial solid wastes GB18599-2001 Emission Standard for Industrial Enterprises Noise at Boundary GB 12348-2008
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C. International Agreements
The PRC is a signatory to international agreements relevant to environment protection. Those relevant to the project, along with the date of signing by the PRC, include:
• Kyoto Protocol to the United Nations Framework Convention on Climate Change, 23 February 2005. To reduce greenhouse gas emissions (GHGs) by enhancing the national programs of developed countries aimed at this goal and by establishing percentage reduction targets for the developed countries; • Montreal Protocol on Substances That Deplete the Ozone Layer, 1 January 1989. To protect the ozone layer by controlling emissions of substances that depletes it; and, • United Nations Framework Convention on Climate Change, 21 March 1994. To stabilize GHG levels sufficient to prevent dangerous human interference with the climate.
D. Applicable PRC and ADB Policies and Assessment Categories
Under PRC legislation, the proposed project activities are classified as “Significant Impact” (requiring a full Environmental Impact Statement; EIS) or “Medium Impact” (requiring a Tabular EIA; TEIA). Based on the PRC Guideline on EIA Categories of Construction Projects (MEP, 2015), one EIS study and one TEIA are required (Table III-5). The two assessments will be approved by the Hebi Municipal Environment Protection Bureau.
Table III-5 Domestic EIA for Each Component Subproject Report Qibin District Urban Environmental Management Subproject TEIA Qihe River Ecological Wetland Reserve Rehabilitation Subproject EIS
ADB’s Safeguard Policy Statement (SPS, 2009) provides the basis for this project EIA. Projects funded by ADB must comply with the SPS. The purpose of the SPS is to establish an environmental review process to ensure that projects funded under ADB loans are environmentally sound, comply with domestic laws, and are not likely to cause significant environment, health, or safety hazards. The subprojects are classified as Category B by ADB, requiring the preparation of an addendum IEE, including EMP.
E. Assessment Standards
The environmental standard system that supports the implementation of the environmental protection laws and regulations in the PRC can be classified by function- ambient environmental quality standards, and by pollutant emission and/or discharge standards. ADB’s SPS requires projects to apply pollution prevention and control technologies and practices consistent with international good practices such as the World Bank Group’s Environmental, Health and Safety Guidelines (EHS). 2 For this assessment, where EHS standards exist for parameters and are relevant, they are used in parallel with PRC standards in this assessment.
Ambient Standards
The Hebi Municipal Environmental Protection Bureau has nominated the environmental quality classes for each component of the proposed Project (Table III-6).
2 World Bank Group. 2007. Environmental, Health and Safety Guidelines General EHS Guidelines. Washington: World Bank.
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Table III-6 Environmental Quality Classes in the Project Area Variable Function Classes Air Quality Class II of GB3095-2012 Acoustic Environment Class 1, 2 and 4a of GB3096-2008 Surface water Class I and II of GB3096-2008 Groundwater Class III of GB/T 14848-2017
Air quality. The PRC ranks air quality into two classes according to Ambient Air Quality Standard (GB 3095-2012). Class II is applied to this project. The World Health Organization (WHO) has set up air quality guideline (AQG) standards for various air quality parameters for the protection of public health. Recognizing that progressive actions are needed to achieve these standards and the financial and technological limitations of some countries or localities especially in developing countries, the WHO also established interim targets as intermediate milestones towards achieving the AQG (Table III-7).
Table III-7 Comparison of PRC and WBG Ambient Air Quality Standards Variable Averaging PRC Class I (μg/m3) PRC Class II (μg/m3) World Bank Group EHS1 (μg/m3) period GB3095-2012 `GB3095-2012 Interim target AQG SO2 1-year 20 60 n/a n/a 24-hour 50 150 50-125 20 1-hour 150 500 n/a n/a NO2 1-year 40 40 n/a 40 24-hour 80 80 n/a n/a 1-hour 120 200 n/a 200 CO 24-hour 4,000 4,000 n/a n/a 1-hour 10,000 10,000 n/a n/a TSP 1-year 80 200 n/a n/a 24-hour 120 300 n/a n/a PM10 1-year 40 70 30-70 20 24-hour 50 150 75-150 50 PM2.5 1-year 15 35 15-35 10 24-hour 35 75 37.5-75 25 Note: n/a=not applicable
Acoustic quality. Noise environment for the project’s settings will be evaluated against Class 1, 2 and Class 4a standards of the Ambient Acoustic Quality Standard (GB3096- 2008) (Table III-8). PRC standards has 6 categories while EHS has only 2. For residential area, PRC and EHS standard value are same, while for industrial and commercial areas, the PRC standards are more stringent than those of EHS.
Table III-8 Ambient Acoustic Quality Standards (unit: dB (A)) Applicable Class Standard Value Day-Time Night-Time PRC Class 0 (special quiet area such as convalescent area) 55 40 Environmental Class 1 (residential, hospital, education, research, 55 45 Quality Standard administrative area) for Noise
(GB3096-2008) Class 2 (commercial, or mixed area of residential 60 50 commercial and industrial area) Class 3 (industrial or logistics area) 65 55 Class 4a (along roads) 70 55 Class 4b (along railways) 70 60 World Bank EHS Residential, education, research, office area 55 45 Industrial, commercial area 70 70
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Surface water quality. The ambient environmental standard applied in this EIA is Surface Water Ambient Quality Standard (GB3838-2002) Classes I and II for mainstream of Qihe River and Side River (Table III-9). There is no EHS guideline or target for water quality in this context.
Table III-9 Surface Water Ambient Quality Standards (Unit: mg/L) Standard pH COD DO BOD Imn* NH3-N Petroleum Volatile Hg Pb phenol (GB3838-2002) – 6-9 ≤15 ≥7.5 ≤3 ≤2 ≤0.15 ≤0.05 ≤0.002 ≤0.00005 ≤0.01 Class I (GB3838-2002) – 6-9 ≤15 ≥6 ≤3 ≤4 ≤0.5 ≤0.05 ≤0.002 ≤0.00005 ≤0.01 Class II (GB3838-2002) – 6-9 ≤20 ≥5 ≤4 ≤6 ≤1.0 ≤0.05 ≤0.005 ≤0.0001 ≤0.01 Class III (GB3838-2002) – 6-9 ≤40 ≥5 ≤10 ≤10 ≤2.0 ≤0.5 ≤0.01 ≤0.001 ≤0.01 Class V *Imn=Permanganate index
Groundwater quality. Groundwater quality will be assessed against Class III standards according to Quality Standards for Groundwater (GB/T14848-2017) (Table III-10). There are no equivalent EHS targets.
Table III-10 Quality Standards for Groundwater Unit: mg/L except pH Parameter Class III of Parameter Class III of GB/T14848- GB/T14848-2017 2017 Na ≤200 As ≤0.01 K / Hg ≤0.001 Ca / Cr+6 ≤0.05 Mg / total hardness ≤450 CO32- / Pb ≤0.01 HCO3- ≤450 Fluoride ≤1.0 chloride ≤250 Cd ≤0.005 SO42- / Fe ≤0.3 pH 6.5~8.5 Mn ≤0.1 NH3-N ≤0.50 Total dissolved solids ≤1000 Nitrate ≤20.0 permanganate index ≤3.0 Nitrite ≤1.00 Sulfate ≤250 Volatile phenols ≤0.002 chloride ≤250 Cyanide ≤0.05 Total coliform ≤3.0
Emission/Discharge Standards
Air pollutant emission. Fugitive emission of particulate matter (such as dust from construction sites) is regulated under PRC‘s Air Pollutant Integrated Emission Standard (GB 16297-1996), which sets 120 mg/m3 as the maximum allowable emission concentration and ≤1.0 mg/m3 as the concentration limit at the boundary of construction sites, with no specification on the particle diameter.
Wastewater. Discharge of wastewater from construction sites is regulated under PRC‘s Integrated Wastewater Discharge Standard (GB 8978-1996). Class I standards apply to discharges into Category III water bodies under GB 3838-2002. Class II standards apply to discharges into Categories IV and V water bodies. Class III standards apply to discharges into municipal sewers going to municipal WWTPs with secondary treatment. Wastewater generated during construction will be discharged into Category III and V water body. Class I and Class II of GB 8978-1996 applies for construction sites under this project (Table III-11).
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Table III-11 Integrated Wastewater Discharge Parameter Class I Class II Class III For discharge into For discharge into Category For discharge into Category III water IV and V water bodies municipal sewer body pH 6–9 6–9 6–9 SS mg/L 70 150 400 BOD5 mg/L 20 30 300 COD mg/L 100 150 500 TPH mg/L 5 10 20 Volatile phenol mg/L 0.5 0.5 2.0 NH3-N mg/L 15 25 --- 2- PO4 (as P) mg/L 0.5 1.0 --- LAS (= anionic surfactant) 5.0 10 20 mg/L
Noise. Construction noise will be assessed against the PRC Emission Standards of Environment Noise for Boundary of Construction Site (GB 12523-2011). Class II of Emission Standard for Industrial Enterprises Noise at Boundary (GB 12348-2008) and Class 4a of GB 3096-2008 will be applied for operation phase. (Table III-12).
Table III-12 Construction Site Noise Limits. Unit: Leq [dB (A)] Standard Major Noise Source Noise Limit Day Night GB 12523-2011 for Bulldozer, excavators and loader; pile 70 55 construction driving machines; concrete mixer, vibrator and electric saw; hoist and lifter Class II of GB 12348-2008 Pumps 60 50 for operation Class 4a of GB 3096-2008 Traffic noise 70 55 for operation
Vibration. Construction activities will cause vibration impact, and should comply with the Standard for Urban Area Environmental Vibration (GB10070-88) (Table III-13).
Table III-13 Vertical Vibration Standard Value for Various Urban Areas (Unit: dB) Scope of applicable area Day Night Special residential area 65 65 Residential, cultural and educational area 70 67 Mixed area and commercial center 75 72 Industrial centralized area 75 72 Both sides of traffic trunk line 75 72 Both sides of railway main line 80 80
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IV. DESCRIPTION OF THE PROJECT SCOPE CHANGE
The project has four outputs: (i) restored vegetation and wetlands in the upper Qihe River basin; (ii) improved flood management capacity of the lower Qihe River; (iii) enhanced wastewater and solid waste management in the Qihe River basin; and (iv) strengthened technical and institutional support system, and capacity for integrated management of the Qihe River basin.
Output 1 comprises: (i) re-vegetation on hill slopes in the upper and middle sections of the Qihe River; and (ii) wetland restoration and protection in the NWP. Output 2 comprises: embankment of selected sections of the lower Qi, four tributaries, and five canals, dredging of the canals (not mainstream), and riverside greening (38 km from Panshitou reservoir to Liuzhuang barrage and along the canals), for improved river bank erosion control and water environment. Output 3 comprises wastewater and solid waste management in riverside areas in Qibin District and Qi County, to reduce pollution load to the lower Qi. Output 4 will support the development and implementation of: (i) Qihe River ecological monitoring program; (ii) Qihe River Management Information System (MIS), to support integrated water resources management (IWRM); and (iii) associated project training.
A. Proposed project scope change
The loan for $150 million was approved by ADB Board on 29 June 2016. The loan became effective on 13 March 2017. During the implementation of the loan project, due to land availability and changes in Qibin District’s urban development plan, minor changes in the project scope was proposed for output 1 and output 3 including:
(i) Qibin District Urban Environmental Management Subproject. To cancel four contract packages related to stormwater pipeline and sewer construction in Qibin district under output 3: WW-CW-02 due to unavailability of land caused by the changed urban development plan; and WW-CW-04, WW-CW-09, and WW-CW-10 due to changes in the urban development plan
(ii) Qibin District Urban Environmental Management Subproject. To re-design four contract packages (WW-CW-03, WW-CW-05, WW-CW-06, and WW-CW-07) related to stormwater pipeline and sewer construction in Qibin district under project’s output 3: wastewater and solid waste management. The contract packages is re- designed for installation of wastewater and stormwater collection pipes and including associated road construction in Qibin District in accordance with the changed urban development plan.
(iii) Qihe River Ecological Wetland Reserve Rehabilitation Subproject. To add two new subprojects into project’s output 1: restoration of vegetation and wetlands in the upper Qihe River basin. The 2 new subprojects include: (1) Qihe River south bank ecological wetland restoration and ecological park construction, including (a) riverbank restoration and revegetation of the buffer zones; (b) restoration of wetland; and (c) Fu Mountain ecological reserve restoration, including greening; (2) Qihe River Panshitou Reservoir environmental improvement, including (i) rehabilitation of hills, quarries, and creeks and installation of an ecological irrigation system for the rehabilitation; and (ii) installation of small-scale ecological wastewater treatment facilities
Comparison of construction activities between the original proposal and adjusted proposal are presented in Table IV-1 and Table IV-2. For subproject 1- Qibin District Urban Environmental Management subproject, the major changes include: (i) reduced total length of stormwater and sanitary sewer pipelines; (ii) added road construction above the pipelines. For subproject 2- Qihe River Ecological Wetland Reserve Rehabilitation Subproject, the scope
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changes include: (i) increased habitat creation and restoration area; (ii) increase fencing area and installation of signage; (iii) removed river bank revetment of Qihe south bank; (iv) Increased re-vegetation area including aquatic planting; (v) increased infrastructure construction in south bank of Qihe River, Fu mountain ecological reserve ; (vi) increased infrastructure construction at Panshitou Reservoir. Location of the project components are shown in Figure IV-1.
Table IV-1 Comparison of construction activities of Qibin District Urban Environmental Management subproject Item Original activities Adjusted activities Qibin District Wastewater Qibin District Urban Environmental Management Subproject Management Subproject
Stormwater Total: 81.53km, including Total: 33.87 km including pipeline Dalaidian: 7.76 km; Dalaidian: 0 km Dalaidian Town 47.08km Dalaidian Town: 33.87km Juqiao Town: 26.69km Juqiao Town: 0km Sanitary sewer Total: 90.33km including Total: 37.78km including Dalaidian: 21.48 km; Dalaidian: 10.45km Dalaidian Town: 35.07km Dalaidian Town: 22.99km Juqiao Town 33.78 km; Juqiao Town: 4.34 km Roads 0 km 13 roads construction with a total length of 22.93km in Dalaidian Town
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Table IV-2. Comparison of construction activities of Qihe River Ecological Wetland Reserve Rehabilitation Subproject Item Original activities of Activities in Qibin District Activities Qi County Activities of the project Remark the subproject (under construction) (after adjustment) (after adjustment) Habitat restoration Habitat creation: Habitat creation: 11.23ha Habitat creation: 4.37ha Habitat creation: 15.6ha Increase habitat restoration and creation and creation 12.3ha Marsh land restoration: Marsh land restoration: Marsh land restoration: area in Qi County Marsh land 21.6ha 16.9ha 38.5ha restoration: 36.3ha Scattering gravel and stones: Scattering gravel and stones: Dispersing gravel and stones: Scattering gravel 1,100t 600t 1,700t and stones: 1,500t Conservation of Fencing 1,589 m; Fencing 970 m Fencing 3,804 m Fencing 4,774 m; Increase fencing at South bank of Qihe threatened flora and Signage: 300 Signage: 100 Signage: 600 Signage: 700 River wetland ecological park in Qi fauna 300m2 wild 300m2 wild soybean research 300m2 wild soybean research County soybean research base. base. Increase signage along Qihe River base. Bank stabilization Wooden stakes Wooden stakes: 982m, None Wooden stakes revetment : Remove Qihe River south bank revetment : 1,851m, Stone works: 851.5m 982 m, revetment components in Qi County Stone works: Stone works: 851.5 m. 2051.5m. Re-vegetation Re-vegetation area: Re-vegetation area: 28.2ha Re-vegetation area: 59.15ha Re-vegetation area: 422.47ha Increase re-vegetation area along Qihe 49.2ha (8.5ha (8.51ha aquatic plants) (7.72ha aquatic plants) including River to upstream at Hejia village and aquatic plants) downstream to South-to- North Water Transfer Project Newly add re-vegetation for Fu Mountain Newly add re-vegetation at barren hills of Panshitou Reservoir area
Infrastructure public access road: public access road: 2.1 km public access road: 49.08km Increase access road and walking path construction 3.2 km walking paths: 1.4 km Number of entrance and construction at South Bank of Qihe walking paths: 4.4 Number of entrance/exits: 2 exits: 2 River and Fu mountain area; km trash bins: 40 trash bins: 240 Construct and upgrade infrastructure for Number of parking area: 2,300m2 Area with power and water Panshitou Reservoir entrance/exits: 3 Wetland ecological supply: 211.56 ha trash bins: 40 monitoring center: 1 Infrastructure construction at Area with power Wetland ecological Panshitou Reservoir includes: and water supply: monitoring stations: 2 reconstruction of the upper lock 49ha chamber of the water conveyance Parking area: tunnel; reconstruction of the
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Item Original activities of Activities in Qibin District Activities Qi County Activities of the project Remark the subproject (under construction) (after adjustment) (after adjustment) 2,300m2 safety monitoring room and Wetland ecological improvement of the on-site monitoring center: 1 sanitation; construction of the Wetland ecological mobile power management room monitoring stations: of the right dam head; 2 reconstruction of the water supply system; construction of the new terminal; superstructure of the spillway Demolition, additional protective railings 630m
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Panshitou Reservoir Panshitou environmental improvement Reservoir
Qibin district environmental improvement
Qihe River south bank ecological wetland restoration and ecological park construction
HEBI
Q
i
h
e
Fu Mountain ecological reserve restoration
Figure IV-1 Location of Project components
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B. Qibin District Urban Environmental Management Subproject
Location
The subproject is located in Dalaidian Town, Qibin District, Hebi City (Figure IV-2). There is no change with site this subproject.
Figure IV-2 Location of Subproject
Qibin District, located in the middle of Hebi City, was originally a suburb of Hebi City (Figure IV-3). In December 2001, it was renamed as Qibin District of Hebi City with the approval of the State Council. It is the political and cultural center of Hebi City, the seat of the municipal Party committee and municipal government, and a provincial civilized unit.
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Yaoshan
Shancheng
Qibin District
Xun County Qi County
Figure IV-3 Location of Qibin District
Subproject components
The components of the subproject include construction of sewer pipelines, stormwater pipelines and roads (Table IV-3). Among the three components, sewer and stormwater pipelines are included in the original proposal, while the roads construction above the pipelines are newly proposed.
Table IV-3 Summary of subproject components Items Qty Remark The road width is 40-50 m for trunk roads; 24-32 for sub- Roads 22.93km truck roads; 24m for branch roads. Drainage pipelines in Juqiao Town area with length of 4.34km 4.34Km and diameter of DN400-DN600 Drainage Pipelines Drainage pipelines in Dalaidian Town areas with total 22.99 km length of 22.99km and diameters of DN400-DN1000 Stormwater pipelines in Dalaidian Town area with total Stormwater Pipelines 33.87 km length of 33.87km and diameter of D600-2000X1800
Road component
The road construction component will involve construction of 13 roads with a total length of 22.93km in Dalaidian Town, including 6 truck roads with width of 40-50m and design speed of 50km/h, 3 sub-truck roads with width of 24-32m and design speed of 40km/h, and 4
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branch roads with width of 24m and design speed of 30km/h. Detail of road components are presented in
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Table IV-4 and Figure IV-4.
Yaoshan Rd
Yongtong
Wuyii
Tianlai
Tongbai
Qinling Qinling Putuo
Rd
Rd
Rd
Rd
Rd
Rd
Jiuzhou Rd Huanghe Rd
Huaihe Rd
Huaxi Rd
Sanxia Rd
Jiujiang Rd Xiahe Rd Xiangjiangd Rd
LEGEND Project Rd
Figure IV-4 Road network of Project Area
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Table IV-4 Summary of Road Components No. Road Name Section Width (m) Length (m) Class 1 Huanghe Rd Yongtong Rd-Qinling Rd 40 1,451 Trunk 2 Huaxi Rd Yongtong Rd-Qinling Rd 40 1,514 Trunk 3 Yongtong Rd Jiuzhou Rd-Xiangjiang Rd 40 2,428 Trunk 4 Wuyi Rd Jiuzhou Rd-Xiangjiang Rd 40 2,379 Trunk 5 Tianlai Rd Jiuzhou Rd-Xiangjiang Rd 50 2,376 Trunk 6 Yaoshan Rd Sanxia Rd-Xiangjiang Rd 40 848 Trunk 7 Jiuzhou Rd Yongtong Rd-Qinling Rd 24 1,425 Sub-trunk 8 Sanxia Rd Yongtong Rd-Yaoshan Rd 24 1,560 Sub-trunk 9 Jiujiang Rd Yongtong Rd-Yaoshan Rd 32 1,967 Sub-trunk 10 Huaihe Rd Yongtong Rd-Qinling Rd 24 1,475 Branch 11 Xiushui Rd Jiuzhou Rd-Qinling Rd 24 2,188 Branch 12 Tongbai Rd Xiushui Rd-Xiangjiang Rd 24 954 Branch 13 Qinling Rd Jiuzhou Rd-Xiangjiang Rd 24 2,363 Branch Total 22,928
Trunk road cross section design. The width of ROW of trunk roads are 40m and 50m. For 50m width of trunk road, the road cross section is designed as 5m (sidewalk lane) + 5.5m (non-motor vehicle lane) + 3.5m (green belt) + 22m (6 motor vehicle lanes) + 3.5m (green belt) + 5.5m (non-motor vehicle lane) + 5m (sidewalk lane) as shown in Figure IV-5. For 40m width of trunk road, the road cross section is designed as 4.5m (sidewalk lane) + 3.5m (non- motor vehicle lane) + 1.5m (green belt) + 21m (6 motor vehicle lanes) + 1.5m (green belt) + 3.5m (non-motor vehicle lane) + 4.5m (sidewalk lane) as shown in Figure IV-6.
Figure IV-5 Cross section of 50m width trunk road (Tianlai road)
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Figure IV-6 Cross section of 40m width trunk road
Sub-trunk road cross section design. The width of ROW of sub-trunk roads are 32m and 24m. For 32m width of sub-trunk roads, the road cross section is designed as 4.5m (sidewalk lane) + 2.0 m (green belt) + 9.5m (2 motor vehicle lanes) + 2.0m (green belt) + 9.5m (2 motor vehicle lanes) + 4.5m (sidewalk lane) as shown in Figure IV-7. For 24m width of sub- trunk roads, the road cross section is designed as 3.5m (sidewalk lane) + 17m (4 motor vehicle lanes) + 3.5m (sidewalk lane) as shown in Figure IV-8.
Figure IV-7 Cross section design of 32m width of sub- trunk road
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Figure IV-8 Cross section design of 34m width of sub- trunk road
Branch road cross section design. The width of ROW of branch roads is 24m. The road cross section is designed as 6m (sidewalk lane) + 12m (2 motor vehicle lanes) + 6m (sidewalk lane) as shown in Figure IV-9.
Figure IV-9 Cross section design of 24m width of branch road
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Stormwater and sewer pipelines component
The components of stormwater and sewer pipelines construction will involve the installation of about 33.87 km storm water pipelines (DN600-1800), and 27.33km sanitary sewers (DN400-1000) in Dalaidian Town Area and Juqiao Area in Qibin District (Table IV-5 to
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Table IV-6, and Figure IV-10 to Figure IV-11).
Storm water will be discharged to Liugui Ditch by gravity in line with topographic conditions. For roads wider than 40 m, storm water pipelines will be laid on both sides of the road. For roads width less than 40 m, storm water pipelines will be laid on only one side of the road. Wastewater from project area will be conveyed to the Juqiao south WWTP which is under construction.
Table IV-5 Drainage Pipeline Component No. Name Pipe size/material Length Note m 1 Jiuzhou Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 1,400 One side (Yongtong Rd-Qinling Rd) 2 Huanghe Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 1,450 One side (Yongtong Rd-Qinling Rd) 3 Huaxi Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 1,500 One side (Yongtong Rd-Qinling Rd) 4 Yongtong Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 2,427 One side (Jiuzhou Rd-Xiangjiang Rd) 5 Wuyi Rd d600 Class II reinforced concrete socket pipe 780 One side (Jiuzhou Rd-Xiangjiang Rd) d500 HDPE Steel-reinforced spirally wound drainage pipe 809 One side d400 HDPE Steel-reinforced spirally wound drainage pipe 780 One side 6 Tianlai Rd d1000 Class II reinforced concrete socket pipe 2,130 One side (Jiuzhou Rd-Xiangjiang Rd) d800 Class II reinforced concrete socket pipe 240 One side 7 Yaoshan Rd d600 Class II reinforced concrete socket pipe 850 One side (Sanxia Rd-Xiangjiang Rd) 8 Tongbai Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 900 One side (Xiushui Rd-Xiangjiang Rd) 9 Qinling Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 2,340 One side (Jiuzhou Rd-Xiangjiang Rd) 10 Huaihe Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 1,450 One side (Yongtong Rd-Qinling Rd) 11 Sanxia Rd d500 HDPE Steel-reinforced spirally wound drainage pipe 300 One side (Yongtong Rd-Yaoshan Rd) d400 HDPE Steel-reinforced spirally wound drainage pipe 1,500 One side 12 Jiujiang Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 1,950 One side (Yongtong Rd-Yaoshan Rd) 13 Xiushui Rd d400 HDPE Steel-reinforced spirally wound drainage pipe 2,180 One side (Jiuzhou Rd-Qinling Rd) 14 Xiangjiang Rd d600 Class II reinforced concrete socket pipe 1,288 Two sides (Yongtong Rd-Yaoshan Rd) d400 HDPE Steel-reinforced spirally wound drainage pipe 3,052 Two sides
Total 27,326
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Table IV-6 Storm Water Pipeline Component No Section Pipe size/material Length (m) Note Huanghe Rd D1500 Class II reinforced concrete pipe 620 Two sides (Yongtong Rd-Qinling Rd) D1350 Class II reinforced concrete pipe 940 Two sides 1 D1200 Class II reinforced concrete pipe 706 Two sides D1000 Class II reinforced concrete pipe 646 Two sides Huaxi Rd D1500 Class II reinforced concrete pipe 680 Two sides 2 (Yongtong Rd-Qinling Rd)) D1200 Class II reinforced concrete pipe 1,060 Two sides D1000 Class II reinforced concrete pipe 1,300 Two sides Yongtong Rd D800 Class II reinforced concrete pipe 3,400 Two sides 3 (Jiuzhou Rd-Xiangjiang Rd) D600 Class II reinforced concrete pipe 1,300 Two sides Wuyi Rd D1000 Class II reinforced concrete pipe 320 One side 4 (Jiuzhou Rd-Xiangjiang Rd) D800 Class II reinforced concrete pipe 3,580 Two sides D600 Class II reinforced concrete pipe 460 Two sides Tianlai Rd D800 Class II reinforced concrete pipe 3,000 Two sides 5 (Jiuzhou Rd-Xiangjiang Rd) D600 Class II reinforced concrete pipe 1,700 Two sides Yaoshan Rd D600 Class II reinforced concrete pipe 900 Two sides 6 (Sanxia Rd-Xiangjiang Rd) D800 Class II reinforced concrete pipe 790 Two sides Jiuzhou Rd D800 Class II reinforced concrete pipe 310 One side (Yongtong Rd-Qinling Rd) D1000 Class II reinforced concrete pipe 317 One side 7 D1200 Class II reinforced concrete pipe 540 One side D1350 Class II reinforced concrete pipe 250 One side Sanxia Rd D1650 Class II reinforced concrete pipe 790 One side (Yongtong Rd-Yaoshan Rd) D1500 Class II reinforced concrete pipe 635 One side 8 D1350 Class II reinforced concrete pipe 250 One side D1200 Class II reinforced concrete pipe 260 One side Jiujiang Rd 2000x1800 reinforced concrete drainage ditch 570 One side (Yongtong Rd-Yaoshan Rd) D1800 Class II reinforced concrete pipe 380 One side D1650 Class II reinforced concrete pipe 320 One side 9 D1500 Class II reinforced concrete pipe 343 One side D1350 Class II reinforced concrete pipe 263 One side D1200 Class II reinforced concrete pipe 310 One side Huaihe Rd D1650 Class II reinforced concrete pipe 100 One side (Yongtong Rd-Qinling Rd) D1500 Class II reinforced concrete pipe 770 One side 10 D1350 Class II reinforced concrete pipe 225 One side D1200 Class II reinforced concrete pipe 386 One side Xiushui Rd D1200 Class II reinforced concrete pipe 430 One side 11 (Jiuzhou Rd-Qinling Rd) D1000 Class II reinforced concrete pipe 970 One side D800 Class II reinforced concrete pipe 790 One side Tongbai Rd (Xiushui Rd-Xiangjiang Rd) D1000 Class II reinforced concrete pipe 770 One side 12 D800 Class II reinforced concrete pipe 160 One side Qinling Rd (Jiuzhou Rd-Xiangjiang Rd) D1200 Class II reinforced concrete pipe 170 One side D1000 Class II reinforced concrete pipe 1,120 One side 13 D800 Class II reinforced concrete pipe 890 One side D600 Class II reinforced concrete pipe 150 One side Total 33,871
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Jiuzhou Rd
Huanghe Rd
Huaihe Rd Qin;ingRd
Huaxi Rd
TianlaiRd
Putuo Rd Putuo
WuyiRd
TongbaiRd
YaoshanRd
Existing New Flow Outlet
Figure IV-10 Storm water zone of Project Area
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Jiuzhou Rd
Huanghe Rd
Huaihe Rd Qin;ingRd
Huaxi Rd
TianlaiRd
PutuoRd
WuyiRd
TongbaiRd
YaoshanRd
Existing New
Diameter Flow
Figure IV-11 Sewage drainage zone of Project Area
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C. Qihe River Ecological Wetland Reserve Rehabilitation Subproject
The scope change of the subproject is to add two new subprojects into project’s output 1: restoration of vegetation and wetlands in the upper Qihe River basin. The 2 new subprojects include: subproject 1- Qihe River ecological wetland restoration and ecological park construction, including (a) riverbank restoration and revegetation of the buffer zones; (b) restoration of wetlands; and (c) Fu Mountain ecological reserve restoration, including greening; (2) Subproject 2 - Qihe River Panshitou Reservoir environmental improvement, including (a) rehabilitation of hills, quarries, and creeks and installation of an ecological irrigation system for the rehabilitation; and (b) installation of small-scale ecological wastewater treatment facilities, see Table IV-7.
Table IV-7 Summary activities of the Qihe River Ecological Wetland Reserve Rehabilitation Subproject Output Activity 1 Ecological conservation and environmental management of upper Qihe River and its watershed enhanced 1.1 Qihe River Ecological Wetland Reserve Rehabilitation and Ecological Park Construction Subproject 1.1.1 Wetland restoration and revegetation at south bank of Qihe River- Creation and restoration of 21.27ha of habitat, and revegetation of 59.15ha on south bank of Qihe River 1.1.2 Fu Mountain ecological reserve restoration - Revegetation for an area of 160.23ha including ecological forest area of 77.61ha and ecological forest area of 82.62ha 1.1.3 Ecological park construction - Construction of three wetland parks with total area of 60ha near Wanghe, Wangtan and Dujia villages respectively. Revegetation of 42.5ha including 2.03ha of aquatic and 40.47ha of terrestrial plants 1.1.4 Infrastructure construction - Construction 40.69km of roads, installation of 3,804km of fencing and signage 1.2 Panshitou Reservoir Environment Improvement 1.2.1 Afforestation of islands and barren mountains within the reservoir area (73.33ha). - Including the reservoir island, the hillside behind the island and two Peninsula barren hills 1.2.2 Barren slope greening in dam area (27.20ha). including greening at slope of upstream of spillway, the exit slope, the slope of the left dam head, abandoned quarry sites during construction of the reservoir 1.2.3 Environment improvement of Qihe River and downstream villages. Including (i) Remove 7,700t of waste and afforestation of 0.8ha at the area near Yangzhaigou; (ii) Remove 3,300t of waste and afforestation of 12.87ha at the area near Gongjiazhuang village; (iii) Qihe River environment improvement to 1.6km downstream, wetland restoration 1.60ha, with 1,500 arbors and shrubs and 208,900 aquatic plants planted. 1.2.4 Quarry site slope stabilization. Slope stabilization area 7.20ha, slope greening 10ha 1.2.5 Reservoir infrastructure. (i) Construction of buildings (1,339 m2) including upgrade gate chamber (1,230m2), newly build 4 safety monitoring rooms (60.8 m2), newly build 4 ecological toilets and a mobile power management room (48m2) (ii) Water supply pipelines (2.44km) for reservoir management rooms. (iii) Wharf upgrading and management office construction. Expand the existing floating wharf with 6 wooden platforms and construct an 2-floor management office with covering an area of 48m2 (iv) Roads. Repairing 1.95km and newly build 2.95km with width of 6-9m.
The subproject 1 - Qihe River ecological wetland restoration and ecological park construction subproject is located in the middle and lower reaches of Qihe River, along the Bank of Qihe River. The subproject 2 - Panshitou Reservoir environmental protection improvement subproject is located in Panshitou reservoir area of Qihe River Basin. The components of the subproject include vegetation restoration, slope ecological protection, foundation engineering, etc. See the Figure IV-12 for the project location.
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Figure IV-12 Location of Qihe River Ecological Wetland Reserve Rehabilitation Subproject
Qihe River Ecological Wetland Reserve Rehabilitation Subproject
The subproject is located in the middle and lower reaches of Qihe River, at the junction of Qibin district and Qi County and on the South Bank of Qihe River. The specific scope is to Hejia village, Qi County in the west, the main channel of Qihe River in the north, to the South- to-North Water Diversion Channel in the East and to the South Bank of Minzhu channel in the south. The components of the subproject are summarized in Table IV-8 and the layout is shown in Figure IV-13.
Table IV-8 Components of Qihe River Ecological Wetland Reserve Rehabilitation Subproject 1.1.1 Wetland restoration and revegetation at south bank of Qihe River- Creation and restoration of 21.27ha of habitat, and revegetation of 59.15ha on south bank of Qihe River 1.1.2 Fu Mountain ecological reserve restoration - Revegetation for an area of 160.23ha including ecological forest area of 77.61ha and ecological forest area of 82.62ha 1.1.3 Ecological park construction - Construction of three wetland parks with total area of 60ha near Wanghe, Wangtan and Dujia villages respectively. Revegetation of 42.5ha including 2.03ha of aquatic and 40.47ha of terrestrial plants 1.1.4 Infrastructure construction - Construction 40.69km of roads, installation of 3,804km of fencing and signage
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Figure IV-13 Layout of Qihe River Wetland and Ecological Reserve Restoration subproject
1.1 Wetland restoration and revegetation at south bank of Qihe River
a) Habitat restoration and creation.
Existing habitats comprise seven categories, which will be expanded by the project: riparian forest, mudflat, backwater pond, shallow water, deep water, islands, and instream in the main river course (Figure IV-14).
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Figure IV-14 Habitat restoration plan
Riparian forest. This will provide habitats for birds, amphibians, mammals and strengthen a natural buffer between the river and human activities. Most river sections support monoculture stands of poplars and willows, which are fast growing, but provide low ecological value. These stands will be enriched with native trees, shrubs and grasses.
Backwater ponds. These include existing fish ponds and new ponds will be created to link with the main river. These will provide open water surfaces for waterbirds and function as a buffer zone to absorb high water flows.
Mudflat. Located at the river banks, this is the transitional zone between the water and river banks. Former farmland along the river will be restored to mudflats. Some remnant fields will be retained to supplement food for waterbirds which graze in shallow flooded fields.
Shallow water zone. Surrounded by some aquatic plants with water flow all the year around. This area will provide habitats for waterbirds or shorebirds. Big cobbles will be paved to create open space. The existing aquatic plant will be reserved
Deep water zone. This zone comprises most of the mainstream channel of the Qi. The project will support the removal of small blockages (e.g. rock obstructions) in and alongside the river, to improve flow.
Islands. Several small natural islands occur in the mainstream. Habitats will be enhanced and the islands maintained free of human activity, as waterbird resting sites.
Instream zone, These are areas located along the main river channel. Flows in this zone are seasonal. These areas are isolated from human disturbances with dense vegetation.
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The subproject aims to: (i) restore and expand wetland habitats; (ii) provide habitats for wetland flora and fauna; and (iii) protect the river banks from erosion. Through local earth and stone excavation, filling, gravel, natural stones scattering and other measures, the subproject will newly create 4.37ha and restore 16.9ha of mash land. Engineering sketches for each habitat type is shown in Figure IV-15.
Riparian forest Backwater pond
Mudflats Deep water
Island Instream Figure IV-15 Engineering sketches for each habitat type
b) Revegetation of south bank of Qihe River
Rationale. Long term human intervention and unsustainable use has caused the original plants damaged or lost. A large area of poplars has been planted on both sides of the river banks to green the bare mudflat and control erosion. Nonetheless, the survival rate is low due to poor soil conditions or submerged by the water during high water flow. Some invaded species eg Rhus typhina is spreading fast therefore occupied habitats of other flora species.
The subproject will support strengthening biodiversity by enriching plant compositions at the landscape level. The specific planting programs have been designed suitable for local
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site conditions, including evergreen and deciduous trees, shrubs and aquatic plants in different zones as illustrated below.
In wetland areas where the original natural vegetation is well preserved, natural restoration is preferred. Through natural enclosure, artificial seedling, replanting, and timely removal of non-purpose species and plants harmed by pests and diseases to achieve natural restoration of vegetation.
In the occupied riverside forests and mudflat areas that lack irrigated or aquatic plants, create corresponding communities, and replace the existing single community or invasive plant communities with arbor, irrigated, reed, grass and other native vegetation communities to increase the ecological protection buffer and plants species, enriching the community level and stabilizing the community structure, thereby making the ecosystem stable.
Renewal of fast-growing poplar timber forests, using thinning or year-by-year renewal measures to enrich the vegetation types and stabilize the community structure.
Improve the wetland aquatic plant communities, restore wetland freshwater and submerged vegetation, and plant water-resistant plants in flooded areas to ensure survival rate.
At the mouth where the tributaries flow to Qihe River, create artificial wetland, plant reeds, canna and other wetland aquatic plants with pollution resistance to absorb, fix, and transform eutrophic substances, purify water bodies, and reduce non-point source pollutants such as village sewage and pesticide.
Project activities. Species resistant to drought and air pollution have been selected for planting (Table IV-9). There are a number of nurseries in Qibin District and local species will be sourced from these. The average distance from two largest nurseries (1600-1800 mu growing areas) to the selected barren hills are 16-18 km. The subproject will plant 79 kinds of trees, 357,000 in total at an area of 59ha on south bank of Qihe River includes:
(i) Evergreen trees (7.07 ha) including Ligustrum lucidum (40%), Eriobotrya japonica (36%), Platycladus orientalis (16%), and Pinus tabulaeformis (8%); (ii) Deciduous trees (21.22 ha) including Salix babylonica (13%), Paulownia fortunei (11%), Morus alba (9%), Broussonetia kazinoki (8%), Pterocarya stenoptera (7%), Robinia pseudoacacia (7%), Ailanthus altissima ( 6%), etc .; (iii) Small trees and shrubs (18ha) including Malus spectabilis (12%), Yucca gloriosa (10%), Kerria japonica (9%), Lagerstroemia indica (8%), Hibiscus syriacus ( 7%), Euonymus japonicus (5%), Lonicera maackii (3%), etc .; (iv) Herb (5.19 ha) including Ophiopogon japonicus (50%), lycium chinense (30%), Ophiopogon bodinieri (6%) , Hosta plantaginea (3%), Iris wilsonii (3%), etc .; (v) Aquatic plants (7.72ha) including 0.7 ha of submerged plants in deep water area with mainly Hydrilla verticillata (35%), Vallisneria natans (20%), Myriophyllum verticillatum (20%), Ceratophyllum demersum (20%); (vi) 7.02ha of shallow water plants include Zizania caduciflora (15%), Phragmites communis (15%), Nelumbo nucifera (13%), Lythrum salicaria (13%), Typha orientalis (10%), Iris pseudocorus (8%), Sagittaria trifolia (5%), Arundo donax Linn. (5%).
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Table IV-9 Locally-sourced native Plant species selected for greening and restoration under the project Type Chinese Scientific Name Fu Wetland South bank Panshitou Name Mountain parks of Qihe Reservoir River Evergreen 大叶女贞 Ligustrum lucidum X X X Trees 雪松 Cedrus deodara X X
油松 Pinus tabulaeformis X X X X
枇杷 Eriobotrya japonica X X X 白皮松 Pinus bungeana Zucc. X 侧 Platycladus orientalis X X X X Deciduous 垂柳 Salix babylonica X X X X Trees 悬铃木 Platanus orientalis X
香椿 Toona sinensis X X
国槐 Sophora japonica X X X 银 Ginkgo biloba X 皂角 Gleditsia sinensis 柽柳 Tamarix chinensis X X
黄连木 Pistacia chinensis X X
独杆五角枫 Acer mono X X 生三角枫 Acer buergerianum X 三角枫 Acer buergerianum 鹅掌楸 Liriodendron chinensis X