[1]REN Yuanxin,LIN Qing,HAN Ting,et al.Evaluation on the Vulnerability of Water Resources in Shaanxi Province[J].Research of Soil and Water Conservation,2020,27(02):227-232.
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Evaluation on the Vulnerability of Water Resources in Shaanxi Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 02
Page number:
227-232
Column:
Public date:
2020-03-30
- Title:
- Evaluation on the Vulnerability of Water Resources in Shaanxi Province
- Keywords:
- water resources; vulnerability evaluation; comprehensive weighting method; K-means algorithm; Shaanxi Province
- CLC:
- TV213.4
- DOI:
- -
- Abstract:
- In order to explore the current situation of water resources vulnerability in Shaanxi Province, a comprehensive index system consisting of 16 indicators based on three aspects including resistance, adaptability and resilience was developed by using the statistical data of water quality and quantity of Shaanxi Province during the period from 2008 to 2017. A comprehensive weighting method combining the mean square error and the coefficient of variation method as well as K-means algorithm were utilized to classify the evaluation grades and evaluate the vulnerability of water resources in Shaanxi Province. The spatial distribution and future trends of water resources vulnerability were analyzed, and the reasons for affecting water resources vulnerability in Shaanxi Province were discussed. The results showd that the water resources fragility of Shaanxi Province presented the fluctuating downward trend from 2008 to 2017, and the overall situation was moderately fragile; similar variation trends of water resources fragility existed in Guanzhong and northern Shaanxi on a time scale, however, the spatial difference of water resources vulnerability was significant; the grade of water resources vulnerability of Guanzhong was higher than those of northern Shaanxi and southern Shaanxi, the most vulnerable areas appeared in Xi'an, while the areas with the least vulnerability appeared in Ankang City. Regional water vulnerability was significantly influenced by both human policy interventions and extreme weather events.
- References:
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Last Update:
2020-02-25