标准差椭圆模型在干旱半干旱过渡带城市湿地景观时空分布特征分析中的应用

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中图分类号：X37 文献标识码：A 文章编号：2097-5465（2026）02-0105-10

Application of the Standard Deviational Ellpse Model in the Analysis of Spatiotemporal Distribution Characteristics of Urban Wetland Landscapes in Arid-Semiarid Transitional Zones

FU Xinyue， GAO Runhong

InnerMongolia Agricultural University，HohhotO10018，China

Abstract：Toquantitativelyrevealtheevolutionpatesofwetlandsinindustrialcitiesinaridandsemi-aridregions，thisstudy constructed a Standard Deviational Eipse（SDE）modelusing ArcGIS10.8toanalyze thestructuralcomposition，spatiotemporal distributioncharacteristics，dynamicchangerules，anddrivingforcesofwetlandlandscapesinthestudyareafrom2OoOto2020. Theresultsshowthatthewetlandtypestructureisrelativelysimple，dominatedbyfloodplainsandmarshes，supplementedbyrivers andcanals，lakes，andreservoirsandponds.Thetotalwetlandareaincreasedsteadilywhiletheinteranualchangesinthearea ofdiferentwetlandtypesvaried.Theareasofriversandcanals，reservoirsandponds，andmarshesfirstincreasedandthen decreased，whereastheopposite trend wasobservedforlakesandfloodplains.Theformer group（riversandcanals，reservoirsand ponds，marshes）was more significantlyafectedbyhumanactivities，whilethelatergroup（lakes，flooplains）was morestrongly influencedbyclimatefactors.Wetlandsexhibitedascatereddistrbutionatthepatchscaleandadistinctnorth-southlinear extensionpatternitermsofspatialdistribution，withlitleinteranualvariationinthisspatialpatern.Thewetlandcntroid showedanobvioussouthwardaggregationtrend.Significantdiferencesexistedinthedistributiondirection，centroidposition， distributionscope，and extension direction among diferent wetland types，presenting distinct spatial heterogeneity.

Keywords：wetlandlandscape；spatiotemporaldistribution；standarddeviational elipse model;dynamichange；wetlandevolution

0 引言

湿地是国家生态安全体系的重要组成部分和经济社会可持续发展的重要战略资源，在抵御洪水、调节径流、改善气候、控制污染、美化环境和维护区域生态平衡等方面有其他生态系统所不能替代的作用[1-2]。（剩余9922字）