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.
作者
何庆芳
梁俊红
杨柳
HE Qingfang;LIANG Junhong;YANG Liu(Hubei Normal University,Huangshi 435000,China)
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
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
InVEST model
comprehensive land use dynamic
geographic detector
the Middle Route Project of South-to-North Water Diversion
作者简介
何庆芳(1997-),女,硕士研究生,主要从事地理信息系统应用与生态系统服务功能研究。
