鍵詞:農(nóng)業(yè)水污染;空間關(guān)聯(lián)網(wǎng)絡(luò);協(xié)同治理;社會(huì)網(wǎng)絡(luò);二次指派程序中圖分類號(hào):F224;F323 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):2095-6819(2025)05-1404-10 doi:10.13254/j.jare.2025.0233
Analysis of spatial association network and influencing factors of provincial agricultural grey water footprint in China
KONG Yang1,2,HAO Yuxin1,ZHANG Zhaofang3,PENG Qingling4
(1.SchoolofEconomicsandManagement,ChinaThreeGorgesUniversityYichang4430o2,China;2.KeyResearchIstituteof HumanitiesandSocial Sciencesof HubeiProvince(Research CenterforIntegratedWatershed Managementamp;WaterEconomy Development)chang443,Cia;3.IteatioalExcangeSrviceenterof tenistryofAgictureaduralis,eig 100028,China; 4.Business School,Hohai University,Nanjing2111OO,China)
Abstract:ThesituationofagricuuralwaterpolutioninCinaissevereandexhbitssignificantspatialdiferees.Clarifingthspatial asociationnetworkstructureandinfluencingfactorsofagriculturalwaterpolutionisofgreatsignificanceforChinatosientificaly formulatediferentiatedagicuturalwatermanagementandcontrolpolicies.Basedoeaterfotprinttheorythispapercalulatedthe agriculturalwaterpolutionin3provincialareasinChinaduringtheperiodfrom2O13toO2.Theimprovedsocialnetworkanalysis model(NA)andthequadraticassignmntproceduremetod(QAP)wereusedtoexploreisspatialassociationstructurecharacteistics andmaininfugctos.ultssoedattesatialsoeokfiteprovaliclalgyateont Chinahadbokenteliitaonofgeogapicalproxiitypresentingsigcantspatialssociatioandspiloerects.ieajor agriculturalproductproducingprovices,elyIerongolia,eilogjang,Hubei,HenanndFujianupidoreositioite spatialassoiationetwork,ileiveprovices(unicipaitis)domnatedbescondaryandtertiaryindustris,aelyngaiJilin,Tianjin,Gangdogndeiingereinarialositioinetworkwitliitedfuec.eblockodeldvsosctue oftheinter-provincialulualgyatrfoprintinnawasbvis,ndeoveallrdofctorfowas“nelloero way spillover $$ broker\".Each block could efectively bring outitsownadvantages in the spatial associationnetwork.Geographical proximityandpercapitaruralGDPhdasignificantlypositiveimpactonthespatialasociationnetworkofChina'sagriculturalgeywater fotprint.Inctrasttivegatioustrialuctuedwatesoueowetdantlygatictote spatialasociationnetworkofChia’sagiculturalgreywaterfotprint.Testudyshowtatthspatialonectionofhia’sinter provincialagriculturalgeywaterfopintisloseshowngaelativelyomplexetworkstruture,andthetworkstabiltisadualy improved.RuralpapitaGDndgeogapcalproxiityareteiggstiterventpotsaftigtinteprovincialelatiosiof agricultural grey water footprint in China.
Keywords:agiulturalwateroltion;spatialassociationnetwork;clabortiegoveane;socialetwork;quadaticit procedure
農(nóng)業(yè)是最大的用水部門和水污染部門。2021年聯(lián)合國世界水發(fā)展報(bào)告顯示,農(nóng)業(yè)水資源消耗量約占所有可再生水資源的 72% ,貢獻(xiàn)了 75% 的氮污染[3]和 38% 的磷污染4,農(nóng)業(yè)水污染治理已成為亟待解決的全球性挑戰(zhàn)。因此,有必要對(duì)農(nóng)業(yè)水污染進(jìn)行精準(zhǔn)核算,以便制定有效的調(diào)控政策。灰水足跡實(shí)現(xiàn)了用耗水量指標(biāo)來量化水污染(兼顧水量水質(zhì)雙重屬性),是指將水體污染物稀釋至標(biāo)準(zhǔn)濃度所需的淡水總量,能夠較為直觀地衡量農(nóng)業(yè)生產(chǎn)活動(dòng)對(duì)水環(huán)境造成的壓力[5。近年來,我國在農(nóng)業(yè)生產(chǎn)領(lǐng)域取得了顯著成就,但同時(shí)也面臨著農(nóng)業(yè)用水效率低下、水污染嚴(yán)重等問題。《中國生態(tài)足跡報(bào)告》(2012年)指出,我國農(nóng)業(yè)生產(chǎn)活動(dòng)產(chǎn)生了約 60% 的灰水足跡,其中導(dǎo)致水環(huán)境污染的主要因素為化肥與農(nóng)藥的低效利用。此外,由于地理位置、自然條件、經(jīng)濟(jì)發(fā)展水平和農(nóng)業(yè)生產(chǎn)方式等方面的顯著差異,我國不同區(qū)域的農(nóng)業(yè)灰水足跡呈現(xiàn)出明顯的空間異質(zhì)性。隨著區(qū)域一體化進(jìn)程的不斷推進(jìn),我國各個(gè)地區(qū)的經(jīng)濟(jì)、社會(huì)和環(huán)境聯(lián)系日益緊密,農(nóng)業(yè)灰水足跡也隨之表現(xiàn)出更強(qiáng)的空間關(guān)聯(lián)特征。因此,有必要在精準(zhǔn)測(cè)算農(nóng)業(yè)灰水足跡的基礎(chǔ)上,聚焦其時(shí)空特征、空間網(wǎng)絡(luò)關(guān)聯(lián)及影響因素分析,為區(qū)域間農(nóng)業(yè)水污染協(xié)同治理提供重要決策支持。
目前,大量研究集中于農(nóng)業(yè)灰水足跡測(cè)算評(píng)估,僅有少量研究深人探究其時(shí)空分異特征及驅(qū)動(dòng)因素。……
農(nóng)業(yè)資源與環(huán)境學(xué)報(bào)
2025年5期