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| Ecological environmental changes and influencing analysis in Baiyangdian Lake |
| Received:February 25, 2020 |
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| KeyWord:Baiyangdian Lake;ecological environment;hydrology;water quality;aquatic organism;influencing factor |
| Author Name | Affiliation | E-mail | | LIU Shi-cun | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | WANG Huan-huan | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | TIAN Kai | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | ZHAO Yan-wei | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | awei1974@bnu.edu.cn | | CHEN Jia-qi | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | LI Chun-hui | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | |
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| Abstract: |
| In order to know the changes of Baiyangdian ecological environment, they changes in hydrology, water quantity, water quality, aquatic organisms, and landscape pattern in Baiyangdian Lake were summarized, and the correlation among the ecological environmental factors and influencing factors of ecological environmental degradation were analyzed by correlation analysis and curve regression analysis. The results showed that the water quantity, water quality, aquatic organism species, and aquatic organism quantity of Baiyangdian Lake decreased each year, while evaporation, the proportion of the wetland landscape transformed into non-wetland landscape, and the degree of landscape fragmentation increased. There were some correlations among the changes in aquatic organisms, hydrology elements, and water quality. The decrease in water inflow caused by the increase in water use and climate change in the watershed may be an important factor affecting water pollution, wetland area decrease, and zooplankton species decline. We should establish a stable ecological water supply mechanism, optimize the socio-economic development model, implement the deep treatment of waste water, strengthen the ecological restoration of wetlands and wetland channel hydrological connectivity, and improve the ecological environment of Baiyangdian Lake in the future. |
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