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| A method of screening ecological environment improvement scenarios for lakes：A case study of the Baiyangdian Lake, China |
| Received:October 14, 2021 |
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| KeyWord:lake;ecological environment improvement;scenario screening;Baiyangdian |
| Author Name | Affiliation | E-mail | | SHANG Qing | State Key Laboratory of Heavy Oil, Beijing Key Laboratory of Oil and Gas Pollution Control, School of Chemical Engineering and Environment, China University of Petroleum(Beijing), Beijing 102249, China | | | WANG Chen | Bureau of Ecology and Environment of Mentougou District, Beijing City, Beijing 102300, China | | | CHANG Shuo | Bureau of Ecology and Environment of Mentougou District, Beijing City, Beijing 102300, China | | | MA Xiaomei | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | ZENG Yong | State Key Laboratory of Heavy Oil, Beijing Key Laboratory of Oil and Gas Pollution Control, School of Chemical Engineering and Environment, China University of Petroleum(Beijing), Beijing 102249, China | yongzeng1974@163.com |
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| Abstract: |
| The improvement and restoration of shallow lake ecological environments involves systems engineering. Screening the best scenarios is an important component of lake management. According to the overall improvement requirements of the lake ecological environment, an index system consisting of hydrodynamic, water quality, and aquatic habitat indicators was put forward and was further employed to screen the best scenarios based on the TOPSIS decision-making method. Taking the Baiyangdian Lake as an example, three scenarios of "water allocation optimization (S1)", "deep pollution control (S2)", and "water allocation optimization + moderate pollution control (S3)" were set up and simulated based on hydrodynamic and water quality simulation models. The screening results showed that the closeness of the three scenarios to the ideal solution were 0.35, 0.55, and 0.84 respectively. Among them, S3 was recommended as the best scenario, which has the best effect on the improvement of hydrodynamics, water quality, and aquatic habitat of the Baiyangdian Lake. |
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