1992一2022年泾河流域土地利用时空变化及驱动力

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中图分类号：F301.2 文献标志码：A

Spatio-temporal Changes and Driving Forces Land Use in Jinghe River Basin from 1992 to 2022

WU Wenqinga， LI Xiumeia， YANG Pingh， XUE Jianwena， DOU Xiangzhoua， XU Jialea， WU Gaopeng（a.School Water Conservancy and Environment，b. School Culture and Tourism，UniversityJinan，Jinan25OO22，Shandong，China）

Abstract：To clarifytheimpactland usechangeontheecological environment in JingheRiver Basin，basedonthesatelite remote sensing detectiondataJingheRiver Basin from 1992 to2O22，the spatio-temporal change characteristics land use in the basin were analyzed from the aspects spatial distribution land use types，spatial structure transformation，andlanduse intensity.Thesingle-factorimpactsandthe interactivecoupling efects doublefactors onland use changes in Jinghe River Basin were investigated by using geographic detector.The results show that the notableland use transformations occurred over the past 3O years，with a comprehensive land use dynamic degree 0.21% .Forest areas increased substantiallthrough conversion from farmlandand grassland，while impervious surfaces expanded significantly by encroaching on agricultural land and water bodies.The comprehensive landuse intensityindex decreased by2.49 during the study period，with a 3O-year change rate -0.010 1 ，indicating a recesson phase in land use development. Over the past1O years，thelanduse intensityincreasesd in some partsthe southern JingheRiver Basin，with most high-intensitylanduseareas concentrated inthe main urbanarea.Elevation，temperature，and population densityare the maininfluencing factorslandusechange inJingheRiver Basin.Theinfluence natural climatefactors isstrongerthan thatsocioeconomicandanthropogenicfactors，whensinglefactors interact，theirexplanatory powerincreasessignificantly.

Keywords：land use-cover change；driving force；geographical detector；spatio-temporal change；Jinghe River Basin

土地是人类一切活动的场所，土地利用反映了在该场所上发生的一系列开发利用和类型转换的情况，了解土地的变化模式有助于探究人类与环境之间更为复杂的关系。（剩余13858字）