Water Scarcity Analysis of River Basins in ChinaBased on Water Exploitation Index Plus

FAN Lin-lin; WANG Hong-rui; LIU Feng-li; LAI Wen-li; HONG Si-yang

doi:10.11988/ckyyb.20160023

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Journal of Changjiang River Scientific Research Institute ›› 2017, Vol. 34 ›› Issue (4) : 9-14. DOI: 10.11988/ckyyb.20160023

Water Scarcity Analysis of River Basins in ChinaBased on Water Exploitation Index Plus

FAN Lin-lin¹, WANG Hong-rui², LIU Feng-li¹, LAI Wen-li², HONG Si-yang²

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Abstract

In the aim of assessing the water scarcity situation of river basins in China, Water Exploitation Index Plus (WEI+) developed by European Union was introduced to compute the water scarcity situations from 2003 to 2012 in ten first-grade districts of water resources in China. Results show that the WEI+ in rivers basin in Southwest China is the smallest, with the average value of 1.9%, and that of Haihe River Basin is the largest, with the average value of 130%. The WEI+ values of six basins in the North are larger than those of four basins in the South, indicating a severe water scarcity situation in North China. The WEI+ values of four basins in the South changed little during 2003-2012, while those of six basins in the North fluctuated greatly. Moreover, the WEI+ values of most river basins displayed a downward trend, showing the alleviation of water scarcity situation. In addition, the spatial distribution pattern of WEI+ is generally similar with that of water conservancy development and utilization degree, which indicates that WEI+ could effectively reflect the regional water scarcity situation in China.

Key words

water scarcity / Water Exploitation Index Plus(WEI+) / first-grade districts of water resources / four basins in South China / six basins in North China

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FAN Lin-lin, WANG Hong-rui, LIU Feng-li, LAI Wen-li, HONG Si-yang. Water Scarcity Analysis of River Basins in ChinaBased on Water Exploitation Index Plus[J]. Journal of Changjiang River Scientific Research Institute. 2017, 34(4): 9-14 https://doi.org/10.11988/ckyyb.20160023

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