Analysis of dynamic changes and influence factors of Lake Balkhash in the last twenty years

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英文篇名：Analysis of dynamic changes and influence factors of Lake Balkhash in the last twenty years 作者：TANG ; Hai-long ; LU ; Shan-long ; CHENG ; Yan-pei ; GE ; Li-qiang ; ZHANG ; Jian-kang ; DONG ; Hua ; SHAO ; Huai-yong 英文作者：TANG Hai-long;LU Shan-long;CHENG Yan-pei;GE Li-qiang;ZHANG Jian-kang;DONG Hua;SHAO Huai-yong;Chinese Acad Sci,Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci;College of Earth Sciences, Chengdu University of Technology;Institute of Hydrogeology and Environmental Geology,CAGS; 英文关键词：Lake area;;Lake water level;;Remote sensing;;Lake Balkhash 中文刊名：Journal of Groundwater Science and Engineering 英文刊名：地下水科学与工程(英文版) 机构：Chinese Acad Sci,Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci;College of Earth Sciences, Chengdu University of Technology;Institute of Hydrogeology and Environmental Geology,CAGS; 出版日期：2019-09-15 出版单位：Journal of Groundwater Science and Engineering 年：2019 期：03 基金：jointly funded by the China Geological Survey Project “Cooperative Mapping of Hydrology and Environmental Geology in Five Countries of Central Asia” (DD20160106);; National Key Research and Development Program “National Water Resources Stereo Monitoring System and Remote Sensing Technology Application” (2017YFC0405802);; the key supporting research project of National Natural Science Foundation of China “High-resolution Model Development and Simulation Studies of Lake Processes in the Tibetan Plateau and Their Interaction with the Atmosphere” (91637209) 语种：英文; 页：23-32 页数：10 ISSN：2305-7068 分类号：P343.3

摘要

Lake Balkhash is the third largest inland lake in Central Asia after the Caspian Sea and the Aral Sea. The Ili River-Balkash Lake Basin resides in the southeastern part of the Republic of Kazakhstan and the western part of China's Ili Prefecture, which belongs to the arid and semi-arid region. In the middle to late 20~(th) century, the Ili River-Balkash Lake Basin was affected by climate change and human activities, and the problems of water ecology and water resources became increasingly prominent, which became the focus of attention for China and Kazakhstan. In this study, the water level derived from radar altimeter data, the water surface area extracted from Landsat data, and the temperature and precipitation data in the basin were comprehensively utilised. Data analysis of the time course and correlation of hydrological, meteorological elements in the lake basin, water dynamic changes, and influencing factors of Lake Balkhash was studied. The results show that the cyclical change of regional climate is the main factor affecting the change of lake water, and human activities in the short term can regulate the change of water volume in Lake Balkhash. The research results in this paper can provide a scientific basis for the solution of water disputes in cross-border rivers between China and Kazakhstan.
        Lake Balkhash is the third largest inland lake in Central Asia after the Caspian Sea and the Aral Sea. The Ili River-Balkash Lake Basin resides in the southeastern part of the Republic of Kazakhstan and the western part of China's Ili Prefecture, which belongs to the arid and semi-arid region. In the middle to late 20~(th) century, the Ili River-Balkash Lake Basin was affected by climate change and human activities, and the problems of water ecology and water resources became increasingly prominent, which became the focus of attention for China and Kazakhstan. In this study, the water level derived from radar altimeter data, the water surface area extracted from Landsat data, and the temperature and precipitation data in the basin were comprehensively utilised. Data analysis of the time course and correlation of hydrological, meteorological elements in the lake basin, water dynamic changes, and influencing factors of Lake Balkhash was studied. The results show that the cyclical change of regional climate is the main factor affecting the change of lake water, and human activities in the short term can regulate the change of water volume in Lake Balkhash. The research results in this paper can provide a scientific basis for the solution of water disputes in cross-border rivers between China and Kazakhstan.

引文

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