Page 22 - 《水资源与水工程学报》2022年第6期
P. 22

! 33 " ! 6 #                      & ' ( ) & * + , -                               Vol.33No.6
               2022 $ 12 %              JournalofWaterResources&WaterEngineering                 Dec.,2022

            DOI:10.11705/j.issn.1672-643X.2022.06.03


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               KLDMN:TV213.4   OPQRS:A    OTUN:1672643X(2022)06001810
                    WaterresourcesvulnerabilityassessmentofShaanxiProvincebased

                                      onfuzzycomprehensiveindexmethod

                                                                        1
                                      1,2
                                                      1
                                                                                           1
                             LIUYinge ,YANGYuxin,BAOJiangchuan,WANGShaoxiong
              (1.SchoolofGeographic&EnvironmentalSciences,BaojiUniversityofArtsandSciences,Baoji721013,China;2.ShaanxiKey
                LaboratoryofDisastersMonitoringandMechanismSimulation,BaojiUniversityofArtsandSciences,Baoji721013,China)
               Abstract:Basedonthestructureandfunctionofwaterresourcessystem,awaterresourcesvulnerabilitye
               valuationsystemisconstructed,whichconsistsofthreecriterionlayers,namely,wateryield,waterquality
               anddisaster,threeconstraintlayers,whicharenaturalfactors,humanfactorsandbearingfactors,and27
               indices.Theweightareassignedusingthecombinationofentropyweightmethodandanalytichierarchy
               process ,andthewaterresourcesvulnerabilityof10prefecturelevelcitiesinShaanxiProvincefrom2007to
               2017isevaluatedandcategorizedusingthefuzzycomprehensiveevaluationmethodfromspatialandtempo
               ralperspectives.Inthemeantime,theobstacledegreemodelisappliedtoexploretheobstaclefactorsofwa
               terresourcesvulnerability.TheresultsshowthatthewaterresourcesvulnerabilityofXianyangandWeinan
               iscategorizedasGrade Ⅴ;thatofXi’an,Baoji,TongchuanandYulinisGrade Ⅱ;andthatofYan’an,
               Hanzhong,AnkangandShangluoisGrade Ⅰ.Overthe11years,thewaterresourcesvulnerabilityofXian
               yang,Weinan,AnkangandShangluoshowedadownwardtrend,whereasthatofXi’an,Tongchuan,Yan’
               anandHanzhongshowedanincreasingtrend,andthatofBaojiandYulinremainedunchanged.Spatially,
               itshowedthedistributionpatternof“lowinthenorthandsouthregions,highinthemiddleregions”.The
               mainobstaclefactorsaffectingwaterresourceswerechangerateofannualprecipitation ,waterconsumption
               of10thousandRMBGDP,disasterratioofdroughtandfloodarea,wastewaterdischargeof10thousand
               RMBGDP,anddevelopmentandutilizationrateofgroundwaterresources.Theresearchshowsthatthewa

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