Fiches Synoptiques-MEKONG-2019-En
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Dissolved Inorganic Carbon (DIC) Contents in Middle and Lower Reaches of Lancang River: Related to Water Environments and Dams
Journal of Water Resource and Protection, 2017, 9, 1132-1144 http://www.scirp.org/journal/jwarp ISSN Online: 1945-3108 ISSN Print: 1945-3094 Dissolved Inorganic Carbon (DIC) Contents in Middle and Lower Reaches of Lancang River: Related to Water Environments and Dams Jinxia Lu, Kaidao Fu*, Mingyue Li, Daxing Li, Di Li, Chao Wang, Wenhui Yang Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Asian International Rivers Center, Yunnan University, Kunming, China How to cite this paper: Lu, J.X., Fu, K.D., Abstract Li, M.Y., Li, D.X., Li, D., Wang, C. and Yang, W.H. (2017) Dissolved Inorganic Carbon Carbon cycle is one of the focuses of climate change, river carbon is an im- (DIC) Contents in Middle and Lower portant part, while dissolved inorganic carbon (DIC) has a high proportion of Reaches of Lancang River: Related to Water river carbon flux. In this study, we did the research on the Lancang River, an Environments and Dams. Journal of Water Resource and Protection, 9, 1132-1144. important international river in the southwest of China. Water samples were https://doi.org/10.4236/jwarp.2017.910074 obtained from 16 sections of the middle and lower reaches of the Lancang River in 2016 (11 months), then we monitored some water quality indicators Received: August 8, 2017 and DIC content, finally analyzed the temporal-spatial distribution characte- Accepted: September 15, 2017 Published: September 18, 2017 ristics of DIC and the relationship between DIC content and water environ- ment factors. The results showed that: (1) DIC contents in the middle and Copyright © 2017 by authors and lower reaches of the Lancang River varied from 1.1840 mmol/L to 3.1440 Scientific Research Publishing Inc. -
The Multiplication of Dams Reduces the Mekong's Flow
Sentinel Vision EVT-767 The multiplication of dams reduces the Mekong's flow 19 November 2020 Sentinel-1 CSAR IW acquired on 06 October 2014 from 22:45:02 to 22:45:31 UTC ... Se ntinel-1 CSAR IW acquired on 29 August 2020 from 11:21:38 to 11:24:33 UTC Sentinel-1 CSAR IW acquired on 04 October 2020 from 22:44:48 to 22:45:13 UTC Author(s): Sentinel Vision team, VisioTerra, France - [email protected] 3D Layerstack Keyword(s): River, hydrology, dam, biodiversity, hydropower, green energies, sediments, fishing, agriculture, salinity, China, Laos, Cambodia, Thailand, Vietnam Fig. 1 - S1 (29.08.2020 - 03.09.2020) - Chinese dams built on the Mekong river. 2D view Fig. 2 - S1 (20.08.2015) - Before the construction of Dahuaqiao dam in the Yunnan province of China. 3D view / The Mekong River Commission For Sustainable Development describes the Mekong river as "one of the world’s great rivers. Covering a distance of nearly 5,000 km from its source on the Tibetan Plateau in China to the Mekong Delta, the river flows through six countries: China, Myanmar, Thailand, Laos, Cambodia and Vietnam." Fig. 3 - S1 (29.08.2020) - Five years later, view after the building of Dahuaqiao dam. 3D view "The basin is home to one of the richest areas of biodiversity in the world, with more than 20,000 plant species and 850 fish species discovered to date. An estimated 80% of the nearly 65 million people living in the Lower Mekong River Basin depend on the river and its rich natural resources for their livelihoods, making sustainable development crucial for the environment and communities living in the basin." Fig. -
Tài Liệu Tổng Hợp TỪ MEKONG ĐẾN CỬU LONG
1 Tài liệu tổng hợp TỪ MEKONG ĐẾN CỬU LONG (Update March 1, 2016) Chúng tôi xin ghi lòng tạc dạ công ơn Tổ tiên đã khổ công gầy dựng giang sơn gấm vóc. Chúng tôi xin tri ân các Bậc Tiền Nhân đã lưu lại tài liệu, sách vở, hình ảnh cho con cháu đời sau hiểu biết về dòng sông Cửu Long đã từng nuôi sống bao thế hệ vùng Đồng bằng sông Cửu Long nói riêng và Việt Nam nói chung. Chúng tôi rất cám ơn các nhiếp ảnh gia, tác giả của những tấm hình mà chúng tôi xin được mạn phép dùng cho tập tài liệu tổng hợp này. Rất mong quý Anh Chị lượng thứ khi thấy chúng tôi sử dụng hình trên Internet cho tập sách nhỏ bé này. Những hình ảnh nếu đã có Copyright mà chúng tôi không được biết, chúng tôi sẵn lòng liên lạc với nhiếp ảnh gia đã chụp ảnh. Tập tài liệu này KHÔNG dành để bán mà chỉ là sự sưu tầm để học hỏi trong nhóm. Chúng tôi tha thiết mong đợi các bạn trẻ Việt Nam hãy đồng hành cùng chúng tôi cứu dòng sông Mekong-Cửu Long đang cạn kiệt nguồn nước. Trân trọng, - Nhóm sưu tập tài liệu LymHa - 2 MỤC LỤC CHƯƠNG 1: LỜI DẪN NHẬP CHƯƠNG 2: TÊN CỦA DÒNG SÔNG MEKONG CHƯƠNG 3: VỊ TRÍ ĐỊA LÝ DÒNG SÔNG MEKONG CHƯƠNG 4: NHỮNG NHÀ THÁM HIỂM DÒNG SÔNG MEKONG CHƯƠNG 5: SỰ HÌNH THÀNH DÒNG SÔNG MEKONG 1. Điểm phát xuất 2. -
Death of the Mekong, River of Buddhism Khanh T. Tran, AMI
Death of the Mekong, River of Buddhism Khanh T. Tran, AMI Environmental, USA Introduction From its origin in the high plateau of Tibet, the Mekong River is 4500 km long and the 12th longest river in the world, flowing through six countries that include China, Myanmar, Thailand, Laos, Cambodia and Vietnam. Through its long course, the river is known as Lancang in China, Mekong in Myanmar, Laos and Thailand, and finally as River of Nine Dragons because it flows out to sea through nine estuaries in southern Vietnam. True to its name (Mekong means Mother River in Laotian), the Mekong River is the lifeline to more than 65 million inhabitants, mainly in downstream countries of Laos, Thailand, Cambodia and Vietnam. The majority of these inhabitants are Buddhists and all three major Buddhist traditions are practiced: Theravāda in Myanmar, Thailand, Laos and Cambodia; Mahayana in China and Vietnam; and Vajrayana in Tibet. Hence, the Mekong is called the “River of Buddhism”. Most residents along the river are poor fishermen living off the river fish catch or poor farmers using the river water and rich silt to grow rice. They also use the river as their principal means of transportation. In the next two decades, the number of the basin inhabitants is expected to increase to over 100 million. Their daily life is constantly threatened by floods, deforestation, pollution as well as ill-planned development projects. The biggest threat to their livelihood is the gigantic hydroelectric dams built or planned in Yunnan Province and the smaller dams in Laos and on the Lower Mekong. -
Downstream Impacts of Lancang Dams in Hydrology, Fisheries And
Downstream Impacts of Lancang/ Upper Mekong Dams: An Overview Pianporn Deetes International Rivers August 2014 • In the wet season, the Lancang dams run at normal operation levels for power generation and release extra water if the water level exceeds normal water level. • In the dry season, Xiaowan and Nuozhadu will generally release the water to downstream dams so that to ensure other dams can run at full capacity. • The total storage of six complete dams is 41 km3. And the total regulation storage is 22 km3 Dam Name Installed Dam Height Total Regulation Regulation Status Capacity (m) Storage storage Type (MW) (km3) (km3) Gongguoqiao 900 130 0.32 0.05 Seasonal Completed (2012) Xiaowan 4200 292 15 10 Yearly Completed (2010) Manwan 1550 126 0.92 0.26 Seasonal Completed (phase 1 in1995 and phase 2 in 2007) Dachaoshan 1350 118 0.94 0.36 Seasonal Completed (2003) Nuozhadu 5850 261.5 22.7 11.3 Yearly Completed (2012) Jinghong 1750 118 1.14 0.23 Seasonal Completed (2009) Ganlanba 155 60.5 Run-of- Planned river Hydrology Flow Lancang dams has increased dry season flows and reduces wet season flows: • At China border, the flow can increase as much as 100% in March due to the operation of Manwan, Daochaoshan Jinghong and Xiaowan dams (Chen and He, 2000) • On average, the Lower Lancang cascade increased the December–May discharge by 34 to155 % and decreased the discharge from July to September by 29–36 % at Chiang Saen station (Rasanen, 2012) • After the Manwan Dam was built, the average minimum flow yearly decreased around 25% at Chiang Saen (Zhong, 2007) Rasanen (2012) Hydrology Water Level Monthly average water level data from Chiang Khong clearly showed the impacts of the first filling of Nuozhadu Dam. -
China Eyes Its Next Prize – the Mekong
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/327871725 China eyes its next prize -- The Mekong Research · June 2018 DOI: 10.13140/RG.2.2.34318.82241 CITATION READS 1 93 1 author: Elliot Brennan Institute for Security and Development Policy 25 PUBLICATIONS 21 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Conflict Management in the Indo-Pacific (Independent) View project Vietnam Rural Reform View project All content following this page was uploaded by Elliot Brennan on 25 September 2018. The user has requested enhancement of the downloaded file. CHINA | SOUTHEAST ASIA China eyes its next prize – the Mekong Sesan 2 dam in Stung Treng, Cambodia (Photo: Jason South via Getty) BY Elliot Brennan @elliotbrennan 5 June 2018 15:00 AEDT Beijing’s islands-building in the South China Sea and their militarisation, replete with surface-to- air missiles, is near complete. With guile, threat, and coercion, China can now seize control of one of the main transport arteries of Southeast Asia, making a mockery of international laws and norms. But there is another prize in Beijing’s sights, an artery that runs straight through mainland Southeast Asia. The mighty Mekong River, which starts in China (known there as Lancang), and connects Myanmar, Thailand, Laos, Vietnam, and Cambodia, is a crucial lifeline that nourishes some 60 million people along its banks. Control of both the South China Sea and Mekong River will strategically sandwich mainland Southeast Asia. Indeed, Beijing’s control of Southeast Asian rivers looks set to be the other half of its “salami slicing” strategy in the region. -
Environmental and Social Impacts of Lancang Dams
Xiaowan Dam Environmental and Social Impacts of Lancang Dams the water to downstream dams so as to ensure other dams can run at full capacity. Xiaowan and Nuozhadu are the two yearly regulated dams with big regulation storages, while all the others have very limited seasonal regulation capacity. A wide range of studies have confirmed that the wet season Summary flow will decrease, while the dry season flow will increase because of the operation of the Lancang dams. Because the This research brief focuses on the downstream impacts on Lancang river contributes 45% of water to the Mekong basin hydrology, fisheries and sedimentations caused by the Lower in the dry season, the flow change impacts on downstream Lancang cascade in China. Manwan and Dachaoshan were reaches will be more obvious increasing flows by over 100% the first two dams completed on the Lancang River (in 1995 at Chiang Saen. An increase in water levels in the dry sea- (first phase) and 2003 respectively) and many changes have son will reduce the exposed riverbank areas for river bank been observed. Many scientific studies have been done to gardens and other seasonal agriculture. Millions of villagers evaluate the impacts from Manwan and Dachaoshan dams who live along the Mekong River grow vegetables in river- by analyzing monitoring and survey data. With the two big- bank gardens and their livelihoods will be largely impacted gest dams of the cascade, Xiaowan and Nuozhadu, put into if losing the gardens. In the wet season, the decrease of operation in 2010 and 2012, bigger downstream impacts are flow at Chiang Saen caused by the Lancang dams holding expected to be observed. -
Basin-Wide Strategy for Sustainable Hydropower Development
2017/18 Knowledge Sharing Program with the Mekong River Commission: Basin-wide Strategy for Sustainable Hydropower Development 2017/18 Knowledge Sharing Program with the Mekong River Commission 2017/18 Knowledge Sharing Program with the Mekong River Commission Project Title Basin-wide Strategy for Sustainable Hydropower Development Prepared by Korea Development Institute (KDI) Supported by Ministry of Economy and Finance (MOEF), Republic of Korea Prepared for Mekong River Commission (MRC) In Cooperation with Mekong River Commission (MRC) Mekong River Commission Secretariat (MRCS) Thailand National Mekong Committee (TNMC) Lao National Mekong Committee (LNMC) Cambodia National Mekong Committee (CNMC) Vietnam National Mekong Committee (VNMC) Program Directors Youngsun Koh, Executive Director, Center for International Development (CID), KDI Kwangeon Sul, Visiting Professor, KDI School of Public Policy and Management, Former Executive Director, CID, KDI Project Manager Kyoung Doug Kwon, Director, Division of Policy Consultation, CID, KDI 3URMHFW2I¿FHUV Yerim Kim, Senior Research Associate, Division of Policy Consultation, CID, KDI Seungju Lee, Research Associate, Division of Policy Consultation, CID, KDI Senior Advisor Kyungsik Kim, Former Vice Minister for Ministry of Land, Infrastructure and Transport, Republic of Korea Principal Investigator Seungho Lee, Professor, Korea University Authors Chapter 1. Seungho Lee, Professor, Korea University Chapter 2. Ilpyo Hong, Senior Fellow, Korea Institute of Civil Engineering and Building Technology -
Council Study
8/21/2015 Council Study Work Plan: Formulation of Development Scenarios for the Hydropower Thematic Area 5th RTWG Meeting Siem Reap, Cambodia 13-14 August 2015 Content • Overview and References • HP Sub Scenarios • Potential Hydropower Dams • Data and assumption • Schedule Content • Guidance 1 8/21/2015 Sub Scenario for hydropower thematic area • The concept proposed for Sub Scenario of hydropower thematic area was conceived and proposed for the 1st time for consideration • The concept take stock of the content of the “Assessment of basin-wide Development Scenarios – Apr 2011” and the application of the Preliminary Design Guidance • Figures and numbers are indicative. They can be refined after the concept for HP Sub- Scenarios has been accepted Overview and Referencesand Overview Scenarios Name Level of Development* # ALU DIW FPF IRR NAV HPP 1 Early Development Scenario 2007 2007 2007 2007 2007 2007 2007 2 Definite Future Scenario 2020 2020 2020 2020 2020 2020 2020 3 Planned Development Scenario 2040 2040 2040 2040 2040 2040 2040 Note: *Levels of developments for the various thematic areas: ALU = Agric/Landuse Change; DIW = Domestic and Industrial Water Use; FPF = flood protection/floodplain infrastructure; HPP = hydropower; IRR = irrigation; and NAV = Navigation OverviewandReferences 2 8/21/2015 • o Joint Operation (limited coordination) where each hydropower dam will be operated to maximize their individual energy production. The “subset” will be determined with MC on the basis of realistic constraints to full development. • Joint Operation and good coordination among all MS Dams and by taking account operation for navigation lock, fish passages, sediment flushing as well as measure to maintain acceptable water quality during and after sediment flushing. -
Case Study: Pak Mun Dam, Mekong River Basin, Thailand
WCD Case Study Pak Mun Dam Mekong River Basin Thailand Final Report: November 2000 Prepared for the World Commission on Dams (WCD) by: Sakchai Amornsakchai - Asian Institute of Technology, Bangkok Philippe Annez - Griffon Ltd., Bangkok Suphat Vongvisessomjai - Asian Institute of Technology, Bangkok Sansanee Choowaew - Mahidol University, Bangkok Thailand Development Research Institute (TDRI), Bangkok Prasit Kunurat - Department of Social Sciences, Khon Kaen University Jaruwan Nippanon, - Department of Health, Khon Kaen University Roel Schouten- Seatec International - Consulting Engineers, Bangkok Pradit Sripapatrprasite- Seatec International - Consulting Engineers, Bangkok Chayan Vaddhanaphuti - Chiang Mai University, Chiang Mai Chavalit Vidthayanon - Royal Thai Government Fisheries Department, Bangkok Wanpen Wirojanagud, - Faculty of Engineering, Khon Kaen University Ek Watana - Department of Ecological Science, Khon Kaen University Secretariat of the World Commission on Dams P.O. Box 16002, Vlaeberg, Cape Town 8018, South Africa Phone: 27 21 426 4000 Fax: 27 21 426 0036. Website: http://www.dams.org E-mail: [email protected] Pak Mun Dam - Mekong River Basin, Thailand i Disclaimer This is a working paper of the World Commission on Dams - the report published herein was prepared for the Commission as part of its information gathering activity. The views, conclusions, and recommendations are not intended to represent the views of the Commission. The Commission's views, conclusions, and recommendations will be set forth in the Commission's own report. Please cite this report as follows: Amornsakchai, S., Annez, P., Vongvisessomjai, S., Choowaew, S., Thailand Development Research Institute (TDRI), Kunurat, P., Nippanon, J., Schouten, R., Sripapatrprasite, P., Vaddhanaphuti, C., Vidthayanon, C., Wirojanagud, W., Watana, E. 2000. Pak Mun Dam, Mekong River Basin, Thailand. -
MRCS Decision Support Framework (DSF) and BDP Applications
The MRC Basin Development Plan MRCS Decision Support Framework (DSF) and BDP applications BDP Library Volume 7 March 2005 Revised September 2005 Mekong River Commission j BDP The MRC Basin Development Plan MRCS Decision Support Framework (DSF) and BDP Applications BDP Library Volume 7 March 2005, revised September 2005 Mekong River Commission Foreword The BDP Library was compiled towards the end of Phase 1 of the BDP Programme. It provides an overview of the BDP formulation, together with information about the planning process and its knowledge base, tools and routines. The library incorporates the essence of more than a hundred technical reports, working papers and other documents. It consists of 15 volumes: 1 The BDP planning process 2 Sub-area analysis and transboundary planning 3 Sub-area studies (including 13 sub – volumes) 4 Scenarios for strategic planning 5 Stakeholder participation 6 Data system and knowledge base 7 MRCS Decision Support Framework (DSF) and BDP applications 8 Economic valuation of water resources (RAM applications) 9 Social and environmental issues and assessments (SIA, SEA) 10 IWRM strategy for the Lower Mekong Basin 11 Monographs. March 2005 12 Project implementation and quality plan 13 National sector reviews 14 Regional sector overviews 15 Training The work was carried out jointly by MRC and the NMCs with comprehensive support and active participation by all MRC programmes and more than 200 national line agencies. Financial and technical support was kindly granted by Australia, Denmark, Japan, Sweden and Switzerland. The library has been produced for the purpose of the BDP and is intended for use within the BDP Programme. -
Water and Suspended Sediment Budgets in the Lower Mekong from High-Frequency Measurements (2009–2016)
water Article Water and Suspended Sediment Budgets in the Lower Mekong from High-Frequency Measurements (2009–2016) Dang Thi Ha 1, Sylvain Ouillon 2,3,* ID and Giap Van Vinh 4 1 School of Maritime Economics and Technology, Ba Ria-Vung Tau University, 84254 Ba Ria-Vung Tau, Vietnam; [email protected] 2 LEGOS, Univ. Toulouse, IRD, CNRS, CNES, 14 av. E.-Belin, 31400 Toulouse, France 3 Department of Water Environment Oceanography, University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, 100000 Hanoi, Vietnam 4 Cuu Long River Hydrological Center, Southern Regional Hydro-Meteorological Center (SRHMC), 84282 Can Tho, Vietnam; [email protected] * Correspondence: [email protected]; Tel.: +33-561332935 Received: 19 April 2018; Accepted: 20 June 2018; Published: 26 June 2018 Abstract: Based on a new dataset of high temporal resolution of water discharge (hourly frequency) and suspended sediment concentration (twice daily frequency at ebb and flood tides) at Can Tho and My Thuan stations during the 2009–2016 period, monthly and annual flow and suspended sediment flux of the lower Mekong River were calculated. The present water discharge of the Mekong River to the sea can be estimated to be 400 km3 yr−1, +/− 100 km3 yr−1 depending on El Niño Southern Oscillation (ENSO), and the present sediment supply to the sea can be estimated to be 40 Mt yr−1, +/− 20 Mt yr−1 depending on ENSO. The ENSO influence (proxied by the Southern Oscillation Index—SOI) on Q (water discharge) and Qs (sediment flux) is at maximum at a time lag of 8–9 months.