JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (11): 1918-1925.doi: 10.11849/zrzyxb.20151437

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Research on the Utilization Ratio of the Third Class Water Resources Regions Based on Ecological Function

LI Bin, CHEN Wu, XU Xin-yi, WANG Hong-rui, HAN Dong-mei   

  1. Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of WaterSciences, Beijing Normal University, Beijing 100875, China
  • Received:2015-12-29 Revised:2016-08-08 Online:2016-11-20 Published:2016-11-20
  • Supported by:

    National Natural Science Foundation of China, No.51279006 and 51479003

Abstract:

According to the condition of water resources regionalization and ecological function regionalization, the ecological functions of the third class water resources regions were studied. The determining rules of ecological functions of water resources regions were developed by superimposing the water resources region map and the ecological function zoning map. Based on the rules, the dominant ecological function and the assistant ecological function of each water resources region were obtained. Then, based on the ecological functions of water resources regions, the threshold value of water resources utilization ratio can be determined. By comparing the threshold value of water utilization ratio with the actual value of water utilization ratio, it was concluded that the rationality degree of China’s water resources development and utilization presented obvious regional characteristics. The rationality degree in the east area was lower than that in the west area, and it was lower in the north area than in the south area.

Key words: ecological function, threshold value, water resources regionalization, water resources utilization ratio

CLC Number: 

  • TV213.9