南水北调中线工程水源区生境质量时空演变与驱动力研究  

Research on the Spatial-temporal Evolution and Driving Forces of Habitat Quality in the Water Source Area of the Middle Route Project of South-to-North Water Diversion

作　　者：何庆芳 梁俊红 杨柳 HE Qingfang;LIANG Junhong;YANG Liu(Hubei Normal University,Huangshi 435000,China)

机构地区：[1]湖北师范大学,湖北黄石435000

出　　处：《水资源开发与管理》2024年第2期69-73,80,共6页Water Resources Development and Management

摘　　要：本文采用2000年、2005年、2010年、2015年和2020年5期土地利用数据,基于InVEST3模型及地理探测器探究了南水北调中线工程水源区近20年土地利用变化特征以及生境质量时空演变特征和驱动因子。结果表明,2000—2020年,研究区土地利用以林地为主,综合土地利用动态度变化较小,单一利用动态度最大为未利用地(9.71%),最小为耕地(-0.32%);2000—2020年研究区在生境质量上呈现先上升后下降趋势,在空间上呈现由南向北、由西向东递减的趋势,高等级生境质量面积占比最大(60.6%);人类活动强度、地形因子、NDVI是影响生境质量分布的主要驱动因素。This paper utilizes land use data from five periods(2000,2005,2010,2015,and 2020)to investigate the characteristics of land use changes and the spatial-temporal evolution of habitat quality in the water source area of the Middle Route Project of South-to-North Water Diversion over the past 20 years.The study employs the InVEST3 model and geographic detectors to analyze the driving factors.The results indicate that from 2000 to 2020,the primary land use in the study area is forestland,with relatively minor changes in comprehensive land use dynamics.The greatest dynamic change is observed in unused land(9.71%),while cropland shows the smallest change(-0.32%).Over the same period,habitat quality in the study area exhibits an“up-down”trend.Spatially,habitat quality decreases from south to north and from west to east,with the highest-quality habitats covering the largest area(60.6%).The main driving factors influencing habitat quality distribution include human activity intensity,topographic factors,and NDVI.

关 键 词：InVEST模型 土地利用动态度 地理探测器 南水北调中线工程水源区 

分 类 号：TV213.4[水利工程—水文学及水资源]