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Crop Systems on a County-Scale
Supporting information Chinese cropping systems are a net source of greenhouse gases despite soil carbon sequestration Bing Gaoa,b, c, Tao Huangc,d, Xiaotang Juc*, Baojing Gue,f, Wei Huanga,b, Lilai Xua,b, Robert M. Reesg, David S. Powlsonh, Pete Smithi, Shenghui Cuia,b* a Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China b Xiamen Key Lab of Urban Metabolism, Xiamen 361021, China c College of Resources and Environmental Sciences, Key Laboratory of Plant-soil Interactions of MOE, China Agricultural University, Beijing 100193, China d College of Geography Science, Nanjing Normal University, Nanjing 210046, China e Department of Land Management, Zhejiang University, Hangzhou, 310058, PR China f School of Agriculture and Food, The University of Melbourne, Victoria, 3010 Australia g SRUC, West Mains Rd. Edinburgh, EH9 3JG, Scotland, UK h Department of Sustainable Agriculture Sciences, Rothamsted Research, Harpenden, AL5 2JQ. UK i Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen AB24 3UU, UK Bing Gao & Tao Huang contributed equally to this work. Corresponding author: Xiaotang Ju and Shenghui Cui College of Resources and Environmental Sciences, Key Laboratory of Plant-soil Interactions of MOE, China Agricultural University, Beijing 100193, China. Phone: +86-10-62732006; Fax: +86-10-62731016. E-mail: [email protected] Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China. Phone: +86-592-6190777; Fax: +86-592-6190977. E-mail: [email protected] S1. The proportions of the different cropping systems to national crop yields and sowing area Maize was mainly distributed in the “Corn Belt” from Northeastern to Southwestern China (Liu et al., 2016a). -
Estimating Frost During Growing Season and Its Impact on the Velocity of Vegetation Greenup and Withering in Northeast China
remote sensing Article Estimating Frost during Growing Season and Its Impact on the Velocity of Vegetation Greenup and Withering in Northeast China Guorong Deng 1,2 , Hongyan Zhang 1,2,*, Lingbin Yang 1,2, Jianjun Zhao 1,2 , Xiaoyi Guo 1,2 , Hong Ying 1,2, Wu Rihan 1,2 and Dan Guo 3 1 Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun 130024, China; [email protected] (G.D.); [email protected] (L.Y.); [email protected] (J.Z.); [email protected] (X.G.); [email protected] (H.Y.); [email protected] (W.R.) 2 Urban Remote Sensing Application Innovation Center, School of Geographical Sciences, Northeast Normal University, Changchun 130024, China 3 College of Resources and Environment, Jilin Agricultural University, Changchun 130024, China; [email protected] * Correspondence: [email protected]; Tel.: +86-431-8509-9550 Received: 31 March 2020; Accepted: 23 April 2020; Published: 25 April 2020 Abstract: Vegetationphenology and photosynthetic primary production have changed simultaneously over the past three decades, thus impacting the velocity of vegetation greenup (Vgreenup) and withering (Vwithering). Although climate warming reduces the frequency of frost events, vegetation is exposed more frequently to frost due to the extension of the growing season. Currently, little is known about the effect of frost during the growing season on Vgreenup and Vwithering. This study analyzed spatiotemporal variations in Vgreenup and Vwithering in Northeast China between 1982 to 2015 using Global Inventory Modeling and Mapping Studies Normalized Difference Vegetation Index (GIMMS 3g NDVI) data. -
World Bank Document
Document of The World Bank Public Disclosure Authorized Report No: 21860 Public Disclosure Authorized PROJECT APPRAISAL DOCUMENT ON A PROPOSED LOAN IN THE AMOUNT OF USS100 MILLION TO THE PEOPLE'S REPUBLIC OF CHINA Public Disclosure Authorized FORA LIAO RIVER BASIN PROJECT May 21, 2001 Urban Development Sector Unit East Asia and Pacific Region Public Disclosure Authorized CURRENCY EQUIVALENTS (Exchange R.ate Effective May 1, 2001) Currency Unit = Yuan (Y) Y 1.00 = US$0.12 USSLOO = Y8.3 FISCAL YEAR January 1 -- Decernber 31 ABBREVIATIONS AND ACRONYMS AIC Average IncrementalCost LFD LiaoningProvincial Finance Department CAS Country AssistanceStrategy LIEP Liaoning IntegratedEnvironment Program CITC China InternationalTendering I.P LiaoningProvince Company LPG LiaoningProvincial Government CNAO China National Audit Office LRB Liao River Basin COD ChemicalOxygen Demand LRBP Liao River Basin Project DRA DesignReview & Advisory LUCRPOLiaoning Urban Construction& Renewal Project (Consultancy) Office EA EnvironmentalAssessment MOC Ministryof Construction EMP EnvironmentalManagement Plan MOF Ministry of Finance EPB EnvironmentalProtection Bureau i NCB National CompetitiveBidding ERSF Environment Revolving Subloan NGO NongovernmentalOrganization Facility OED Operations EvaluationDepartment ES EnvironmentSubloans PAP Project-AffectedPersons EU EuropeanUnion PDMC Panjin MunicipalDrainage ManagementCompany FMS Financial ManagementSystem PMO Project ManagementOffice GPN GeneralProcurement Notice PRC People's Republicof China ICB InternationalCompetitive -
Monitoring Spatio-Temporal Changes of Terrestrial Ecosystem Soil Water Use Efficiency in Northeast China Using Time Series Remote Sensing Data
sensors Article Monitoring Spatio-Temporal Changes of Terrestrial Ecosystem Soil Water Use Efficiency in Northeast China Using Time Series Remote Sensing Data Hang Qi, Fang Huang * and Huan Zhai School of Geographical Sciences, Northeast Normal University, Renmin Street No. 5268, Changchun 130024, China; [email protected] (H.Q.); [email protected] (H.Z.) * Correspondence: [email protected]; Tel.: +86-431-8509-9550 Received: 19 February 2019; Accepted: 21 March 2019; Published: 26 March 2019 Abstract: Soil water use efficiency (SWUE) was proposed as an effective proxy of ecosystem water use efficiency (WUE), which reflects the coupling of the carbon–water cycle and function of terrestrial ecosystems. The changes of ecosystem SWUE at the regional scale and their relationships with the environmental and biotic factors are yet to be adequately understood. Here, we aim to estimate SWUE over northeast China using time-series Moderate Resolution Imaging Spectroradiometer (MODIS) gross primary productivity data and European Space Agency climate change initiative (ESA CCI) soil moisture product during 2007–2015. The spatio-temporal variations in SWUE and their linkages to multiple factors, especially the phenological metrics, were investigated using trend and correlation analysis. The results showed that the spatial heterogeneity of ecosystem SWUE in northeast China was obvious. SWUE distribution varied among vegetation types, soil types, and elevation. Forests might produce higher photosynthetic productivity by utilizing unit soil moisture. The seasonal variations of SWUE were consistent with the vegetation growth cycle. Changes in normalized difference vegetation index (NDVI), land surface temperature, and precipitation exerted positive effects on SWUE variations. The earlier start (SOS) and later end (EOS) of the growing season would contribute to the increase in SWUE. -
Cropland Heterogeneity Changes on the Northeast China Plain in the Last Three Decades (1980S–2010S)
Cropland heterogeneity changes on the Northeast China Plain in the last three decades (1980s–2010s) Xiaoxuan Liu1,2, Le Yu1,2,3, Qinghan Dong4, Dailiang Peng5, Wenbin Wu6, Qiangyi Yu6, Yuqi Cheng1,2, Yidi Xu1,2, Xiaomeng Huang1,2, Zheng Zhou1, Dong Wang1,7, Lei Fang8 and Peng Gong1,2 1 Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Tsinghua University, Beijing, China 2 Joint Center for Global Change Studies, Beijing, China 3 Ministry of Education Ecological Field Station for East Asian Migratory Birds, Beijing, China 4 Department of Remote Sensing Boeretang 200, Flemish Institute of Technology (VITO), Mol, Belgium 5 Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences, Key Laboratory of Digital Earth Science, Beijing, China 6 Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Key Laboratory of Agricultural Remote Sensing (AGRIRS), Beijing, China 7 National Supercomputing Center in Wuxi, Wuxi, China 8 Chinese Academy Sciences, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, China ABSTRACT The Northeast China Plain is one of the major grain-producing areas of China because of its fertile black soil and large fields adapted for agricultural machinery. It has experienced some land-use changes, such as urbanization, deforestation, and wetland reclamation in recent decades. A comprehensive understanding of these changes in terms of the total cropping land and its heterogeneity during this period is important for policymakers. In this study, we used a series of cropland products at the 30- m resolution for the period 1980–2015. -
Shipwreck Evidence and the Maritime Circulation of Medicine Between Iran and China in the 9Th Through 14Th Centuries
The Abode of Water: Shipwreck Evidence and the Maritime Circulation of Medicine Between Iran and China in the 9th Through 14th Centuries by Amanda Respess A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Anthropology and History) in the University of Michigan 2020 Doctoral Committee: Professor Kathryn Babayan, Chair Professor Miranda Brown Assistant Professor Jatin Dua Professor Carla Sinopoli, University of New Mexico Amanda Respess [email protected] ORCID iD: 0000-0003-4616-701X © Amanda Respess 2020 DEDICATION “...for by reason we have comprehended the manufacture and use of ships, so that we have reached unto distant lands divided from us by the seas; by it we have achieved medicine with its many uses to the body.” - al-Rāzī, The Spiritual Physick of Rhazes, Of the Excellence and Praise of Reason “Whoever has emerged victorious participates to this day in the triumphal procession in which the present rulers step over those who are lying prostrate. According to traditional practice, the spoils are carried along in the procession. They are called cultural treasures, and a historical materialist views them with cautious detachment. For without exception the cultural treasures he surveys have an origin which he cannot contemplate without horror. They owe their existence not only to the efforts of the great minds and talents who have created them, but also to the anonymous toil of their contemporaries.” -Walter Benjamin, On the Concept of History For my family. For Khwāja ʻAlāʼ al-Dīn al-Iṣfahānī, whose gravestone in China gave the title to this work. -
Ningxia Case Study
Contents Chapter1 - General Situation of Ecological Environment and Economic Development in Ningxia 1.1 General Features of Ecological System ··············································· 6 1.2 General Features of Poverty ···························································· 13 1.3 Relation between Poverty and Ecological Environment ···························· 13 Chapter2 - Challenges of Poverty Reduction through Ecological Construction (PREC) in Ningxia 2.1 Frequent Droughts and Water Resource Deficiency ································· 18 2.2 Insufficient Integration of Environmental Factors and Low Function of Eco-system Service ······································································ 19 2.3 Increasing Conflicts between Eco-system Bearing Capacity and Economic-social Development ············································································ 20 2.4 Difficulties in Poverty Reduction through Ecological Construction ············· 21 Chapter3 - Important Measures Poverty Reduction through Ecological Construction and the Achievements in Ningxia 3.1 Optimizing Water Resource Arrangements and Upgrading Water Efficiency ···· 21 3.2 Optimizing the Arrangement of Man-power and Natural Resources ············ 22 3.3 Powerfully Pushing forward the Rehabilitation and Construction of the Beneficial Cycling System of Ecological Environment ········································ 26 3.4 Upgrading the Comprehensive Capacity of Agricultural Production ············ 29 3.5 Improving the Management of Resource ············································ -
China (Mainland)
Important Bird Areas in Asia – Mainland China ■ CHINA MAINLAND CHINA LAND AREA 9,574,000 km2 HUMAN POPULATION 1,276,300,000 (133 per km2) NUMBER OF IBAs 445 TOTAL AREA OF IBAs 1,134,546 km2 STATUS OF IBAs 247 protected; 64 partially protected; 134 unprotected The subtropical forests in Fanjing Shan Nature Reserve (IBA 241), Guizhou, support several threatened and restricted-range species, including both Elliot’s Pheasant Syrmaticus ellioti and Reeves’s Pheasant S. reevesii. (PHOTO: MIKE CROSBY/BIRDLIFE) KEY HABITATS AND BIRDS important breeding and passage areas for many waterbirds, including the threatened Relict Gull Larus relictus. • Much of north-east China was formerly forested (Biome AS02: • Most of the natural habitats on the plains of northern and Boreal forest – Taiga and Biome AS03: North-east Asian central China (between the steppes and the Yangtze basin) have temperate forest), but large areas were cleared by commercial long been modified because of thousands of years of human logging and for agriculture during the second half of the settlement. Many species were able to co-exist with man until twentieth century. However, logging is now banned there, and agricultural intensification linked to human population growth a few important forest areas remain with populations of in the late ninetieth and early twentieth centuries disrupted the threatened species including Scaly-sided Merganser Mergus old balance. Agrochemicals and firearms became widely used squamatus and Rufous-backed Bunting Emberiza jankowskii (a and greatly reduced the diversity and numbers of birds in bird of the transitional zone between forest and steppe which agricultural areas, for example the threatened Crested Ibis may now be confined to north-east China). -
Project Report on CCOP GSJ/AIST CGS G D T CGS G D T CCOP-GSJ
GW‐2 Project Report on CCOP- GSJ/AIST- CGS Groun dwa ter Phase II Meeting 2-3 September 2010, Xi’an, China COORDINATING COMMITTEE FOR GEOSCIENCE PROGRAMMES IN EAST AND SOUTHEAST ASIA (CCOP) in cooperation with GEOLOGICAL SURVEY OF JAPAN (GSJ), AIST Published by CCOP Technical Secretariat Bangkok, Thailand September 2011 Youhei Uchida (Chief Editor) PREFACE Since the establishment of the CCOP in 1966, geological and geophysical surveys have been carried out by the CCOP under the cooperative schemes in the East and Southeast Asia for offshore natural resources. These data have been distributed to member countries as printed maps and publications. As for the first groundwater project, “Groundwater database in East and Southeast Asia” had been compiled under the DCGM Phase IV project of CCOP from 2001 to 2004. Groundwater is one of the limited natural resources of the world. Because of the lack a feeling of importance of groundwater, especially, in the late 20th century, groundwater has been significantly damaged by human activities, resulting in groundwater issues, such as land subsidence, seawater intrusion, and groundwater pollution by toxic substances, that have become remarkable problems in everywhere in the world. The countries in the East and Southeast Asia have been also faced the many groundwater problems which are needed international cooperation to be solved. The kick-off meeting of the Phase II for the CCOP-GSJ/AIST Groundwater project was held in Bangkok in October 2009. The agreement of the meeting was to release some kinds of hydro-geological map including the latest scientific information for the end-users at the completion of the Phase II project. -
(1910S-2010S) on Water Cycle in the Songneng Plain, Northeast China
University of South Carolina Scholar Commons Faculty Publications Geography, Department of 7-12-2018 Impacts of Agricultural Expansion (1910s-2010s) on Water Cycle in the Songneng Plain, Northeast China Lijuan Zhang Cuizhen Wang [email protected] Xiaxiang Li Hongwen Zhang Wenliang Li See next page for additional authors Follow this and additional works at: https://scholarcommons.sc.edu/geog_facpub Part of the Geography Commons Publication Info Published in Remote Sensing, Volume 10, Issue 7, 2018, pages 1-15. © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Zhang, L., Wang, C., Li, X., Zhang, H., Li, W., & Jiang, L. (2018).Impacts of Agricultural Expansion (1910s-2010s) on Water Cycle in the Songneng Plain, Northeast China. Remote Sensing, 10(7), 1108. doi:10.3390/rs10071108 This Article is brought to you by the Geography, Department of at Scholar Commons. It has been accepted for inclusion in Faculty Publications by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. Author(s) Lijuan Zhang, Cuizhen Wang, Xiaxiang Li, Hongwen Zhang, Wenliang Li, and Lanqi Jiang This article is available at Scholar Commons: https://scholarcommons.sc.edu/geog_facpub/216 remote sensing Article Impacts of Agricultural Expansion (1910s–2010s) on the Water Cycle in the Songneng Plain, Northeast China Lijuan Zhang -
A Review of High Arsenic Groundwater in Mainland and Taiwan, China
Applied Geochemistry 41 (2014) 196–217 Contents lists available at ScienceDirect Applied Geochemistry journal homepage: www.elsevier.com/locate/apgeochem Review A review of high arsenic groundwater in Mainland and Taiwan, China: Distribution, characteristics and geochemical processes ⇑ Huaming Guo a,b, , Dongguang Wen c, Zeyun Liu b, Yongfeng Jia a,b, Qi Guo a,b a State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, PR China b School of Water Resources and Environment, China University of Geosciences, Beijing 100083, PR China c China Geological Survey, 24 Huangsi Dajie, Xicheng District, Beijing 100037, PR China article info abstract Article history: China is a typical high-As region, where 20 provinces have high As groundwaters among 34 provinces. Received 15 October 2013 These groundwaters usually occur in both arid–semiarid inland basins and river deltas. In the inland Accepted 23 December 2013 basins, mainly distributed in the northwest of China, shallow groundwaters usually have high As concen- Available online 28 December 2013 trations in alluvial lacustrine or lacustrine sediment aquifers, while high As groundwater mainly occurs in Editorial handling by M. Kersten fluvial–marine sedimentary aquifers in the river deltas, which have been affected by transgression. In both the inland basins and the river deltas, high As groundwaters, mainly occurring in reducing condi- À tions, are characterized by high Fe and Mn concentrations, high pH and HCO3 concentration, and rela- À 2À tively low NO3 and SO4 concentrations. Although As contents are well correlated to Fe/Mn contents in the aquifer sediments, groundwater As concentrations are generally independent of sediment As con- tents. -
Development Potential of Low-Speed Wind Energy Resources in China
2017 2nd International Conference on Industrial Aerodynamics (ICIA 2017) ISBN: 978-1-60595-481-3 Development Potential of Low-speed Wind Energy Resources in China Rong Zhu, Yang Wang and Xi Gong ABSTRACT The development of low-speed wind turbines significantly improved the exploitation amount of wind energy resources. A new method is developed to analyze the development potential of wind energy resources considering the contribution of wind energy technology advancement. The result shows that the technical potential of low-speed wind power in 19 central and southeast provinces of China increased from 300 million to 1 billion kW. Although much more low-speed wind energy resources will become exploitable with the help of low-speed wind turbines, it is noteworthy that the wind shear in the sweeping areas of this region is larger compared to that in mountainous areas. 1 INTRODUCTION Wind power is generated by the kinetic energy from surface atmospheric motion, which depends on both low-level atmospheric motion and topography. Therefore, the wind energy resources are endowments of nature and closely relates to climatic and geographic conditions. However, the availability of wind energy resources depends on not only natural conditions but also technology. With the development of wind energy resource assessment technology, our understanding on the distribution and storage of wind energy resources will become more accurate. With the continuous development of wind energy utilization technology, more and more wind energy resources will become available. _________________________ 1Rong Zhu, Yang Wang，National Climate Center, China Meteorological Administration, Beijing 100081, China. Xi Gong, Chinese Academy of Meteorology Science, Beijing 100081, China 67 In recent years, China's long-blade and high-hub low-speed turbines technology developed rapidly.