Assessment of Water Resources Vulnerability in Qiubei County Based on Fuzzy Set Pair Analysis
Using the DPSIR framework,a water resource vulnerability index system was constructed in Qiu-bei County,including 14 indicators such as annual precipitation,the weights were determined by entropy weight method,the vulnerability and development trend of the water resources in Qiubei County from 2009 to 2019 were evaluated by fuzzy set pair analysis and five-variable gravity subtraction set pair potential.The re-sults indicated that the vulnerability of the driving force layer and pressure layer showed significant and continu-ous deterioration.Although the overall situation of the impact layer was improving,it might deteriorate in the fu-ture.The development of the state layer and response layer was stable.In the future,it was necessary to pay close attention to the development of driving force layer,pressure layer and influence layer.The water re-source vulnerability in Qiubei County in 2009,2011,2013,2015,2017,and 2019 was mild,moderate,mod-erate,mild,moderate and severe,respectively.The overall vulnerability had a high level and a worsening trend,and the situation was not optimistic.
Water resources vulnerability assessmentDPSIR methodSet pair potentialFuzzy set pair analysis methodQiubei County