Study on the water ecological risk prevention and control technology system of dongting lake
WANG Sheng-rui1, ZHANG Rui1, GUO Long-gen2, XU Li-gang3, CHEN Can4, LU Shao-yong1, WANG Xing1
1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
2. Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
3. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
4. Hunan Research Academy of Environment Sciences, Changsha 410004, China
In order to ensure the health and safety of Dongting lake water ecosystem, we must firstly reveal the evolution process and response mechanism of water ecological and eutrophication risk of Dongting lake under the influence of high-intensity human activities and different hydrological rhythm. And then solve two technical difficulties including establishment of the suitable ecological water level and the eutrophication prevention technology of Dongting lake. This study intends to use mathematical statistics, remote sensing quantitative inversion and quantitative interpretation method and analytic hierarchy process method, to determine the connotation of Dongting lake water ecological risk and to establish the roadmap of Dongting lake water ecological risk prevention and control technology. Specifically, four aspects of researches are performed: the integrated technology of ecological effect quantitative assessments and suitable ecological water level under the condition of water drive; the integrated technology of water environment evolution and algae blooms risk control; the integrated technology and demonstration including prevention and control water ecological risk and eutrophication risk. Finally, a rather perfect system of Dongting lake water ecological risk prevention and control technology should be established in order to support the sustainable development of Dongting lake basin.
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WANG Sheng-rui, ZHANG Rui, GUO Long-gen, XU Li-gang, CHEN Can, LU Shao-yong, WANG Xing. Study on the water ecological risk prevention and control technology system of dongting lake. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(5): 1896-1905.
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