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Study on Water Environment Assessment of Poyang Lake Based on TOPSIS Method
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Ding-hua MENG, Shi-jie ZHU, Jing-qiao MAO
Water Resources and Power | 2023, 41(3) : 44 - 47
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Water Resources and Power | 2023, 41(3): 44-47
• HYDROLOGY，WATER RESOURCES AND ENVIRONMENT •
Study on Water Environment Assessment of Poyang Lake Based on TOPSIS Method
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Ding-hua MENG, Shi-jie ZHU, Jing-qiao MAO
Affiliations
  • College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2023-03-25 doi: 10.20040/j.cnki.1000-7709.2023.20221166
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In order to comprehensively evaluate the water environment health status of Poyang Lake, a quantitative evaluation index system was established from three aspects of water quality, hydrology and aquatic organisms. The comprehensive weighting method combining analytic hierarchy process and coefficient of variation method was used to determine the comprehensive weights of indicators. The TOPSIS method was applied to construct the evaluation model, which determine the score of evaluation objects by combining the weights of indicators. The results show that there are seasonal changes in the water environment health status of Poyang Lake, and the two indicators of hydrology and aquatic organisms in summer are obviously better than other periods, so that water environment health grade is the highest and belongs to grade Ⅰ, with better coordination; The water environment health grade in autumn and winter is the worst and belongs to grade Ⅲ, among which hydrological condition is the main influencing indicator. This study can provide reference for water environment protection and construction of Poyang Lake.

Poyang Lake  /  health status of water environment  /  evaluation indicator system  /  indicator weights  /  TOPSIS method
Ding-hua MENG, Shi-jie ZHU, Jing-qiao MAO. Study on Water Environment Assessment of Poyang Lake Based on TOPSIS Method[J]. Water Resources and Power, 2023 , 41 (3) : 44 -47 . DOI: 10.20040/j.cnki.1000-7709.2023.20221166
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Year 2023 volume 41 Issue 3
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221166
  • Receive Date：2022-05-01
  • Online Date：2026-01-28
  • Published：2023-03-25
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History
  • Received：2022-05-01
  • Revised：2022-06-30
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    College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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