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Water 2016, 8(10), 431; doi:10.3390/w8100431

Using the RESC Model and Diversity Indexes to Assess the Cross-Scale Water Resource Vulnerability and Spatial Heterogeneity in the Huai River Basin, China

1,2,* , 3,* , 1
,
3
,
1,2
and
1
1
School of Resource, Environment and Earth Science, Yunnan University, Kunming 650091, China
2
International Joint Research Center for Karstology, Yunnan University, Kunming 650091, China
3
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Y. Jun Xu, Guangxin Zhang and Hongyan Li
Received: 20 May 2016 / Revised: 3 August 2016 / Accepted: 31 August 2016 / Published: 30 September 2016
(This article belongs to the Special Issue Tackling Complex Water Problems in China under Changing Environment)
View Full-Text   |   Download PDF [7442 KB, uploaded 30 September 2016]   |  

Abstract

Performing a multiscale assessment of water resource vulnerability on the basis of political boundaries and watersheds is necessary for adaptive water resources management. Using the Risk-Exposure-Sensitivity-Adaptability model (RESC model), the water resource vulnerability of the Huai River Basin was assessed using four scales, namely, Class II, Class III, Province-Class II, and Municipality-Class III WRR (Water Resources Region). Following this, the spatial heterogeneity of the vulnerability of the above four scales was evaluated with the Theil and the Shannon-Weaver index. The results demonstrate that, instead of moving towards convergence, water resource vulnerability presents different grades which change together with the change in scale, and in turn, tend to weaken from east to west. Of the four scales, the scale of Municipality-Class III WRR shows the most significant spatial diversity, whereas that of Class II WRR shows the least diversity. With spatial downscaling, the vulnerability demonstrates high spatial heterogeneity and diversity. Herein, an innovative cross-scales vulnerability assessment is proposed and the RESC model characteristics and uncertainties as well as the employment of cross-scale water resource vulnerability are discussed. View Full-Text
Keywords: vulnerability; RESC model; spatial heterogeneity; Huai River Basin; multiscale vulnerability; RESC model; spatial heterogeneity; Huai River Basin; multiscale
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MDPI and ACS Style

Chen, J.; Xia, J.; Zhao, Z.; Hong, S.; Liu, H.; Zhao, F. Using the RESC Model and Diversity Indexes to Assess the Cross-Scale Water Resource Vulnerability and Spatial Heterogeneity in the Huai River Basin, China. Water 2016, 8, 431.

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