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Volume 38 Issue 10
Nov.  2020
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2020  >  38(10): 90-96
DONG Tao, JIN Ju-liang, WANG Zhen-long, LIU Meng, DONG Guo-qiang, SI Qiao-ling, WANG Min-jie. DYNAMIC DIAGNOSIS AND EVALUATION METHOD OF LAKE WATER ECOLOGICAL HEALTH BASED ON RISK MATRIX AND FIVE ELEMENT SUBTRACTION SET PAIR POTENTIAL[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(10): 90-96. doi: 10.13205/j.hjgc.202010014
Citation: DONG Tao, JIN Ju-liang, WANG Zhen-long, LIU Meng, DONG Guo-qiang, SI Qiao-ling, WANG Min-jie. DYNAMIC DIAGNOSIS AND EVALUATION METHOD OF LAKE WATER ECOLOGICAL HEALTH BASED ON RISK MATRIX AND FIVE ELEMENT SUBTRACTION SET PAIR POTENTIAL[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(10): 90-96. doi: 10.13205/j.hjgc.202010014
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DYNAMIC DIAGNOSIS AND EVALUATION METHOD OF LAKE WATER ECOLOGICAL HEALTH BASED ON RISK MATRIX AND FIVE ELEMENT SUBTRACTION SET PAIR POTENTIAL

doi: 10.13205/j.hjgc.202010014

  • 1. Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Water Resources Research Institute of Anhui Province and Huaihe River Commission, Ministry of Water Resources, Hefei 230088, China;

  • 2. Chongqing Ecological and Environmental Engineering Evaluation Center, Chongqing 401121, China;

  • 3. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;

  • 4. Institute of Water Resources and Environmental Systems Engineering, Hefei University of Technology, Hefei 230009, China

  • Received Date: 2020-07-15
    Abstract
  • In order to judge the development trend and diagnose the morbid factors of the lake water ecological health subsystem, the five element subtraction set was introduced, and the composite matrix of the ecosystem and the physical and chemical subsystem was established to get the lake water ecological health status. Thus, the dynamic diagnosis and evaluation method of the lake water ecological health based on the risk matrix and the five element subtraction set was proposed and applied to Wabu lake in Anhui province. The results showed that the water ecological health status of Wabu lake had a trend of deterioration from 1980 to 2015, which was slightly morbid in 2012 and slightly improved in 2015. It was indentified by five element subtraction set pair potential that the pathological factors of water ecological health of Wabu lake mainly included benthos, zooplankton, chlorophyll, COD, TN, TP and transparency. And they were important indicators to improve water ecological health of Wabu lake. The dynamic diagnosis and evaluation method of the coupling of the risk matrix and the five element subtraction set could provide a new idea for lake water ecological health evaluation.
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