广西科学2024，Vol.31Issue(6)：1156-1167,12.DOI:10.13656/j.cnki.gxkx.20241207.010
基于InVEST模型的漓江流域景观格局及生境质量时空演变分析
Spatiotemporal Evolution Analysis of Landscape Pattern and Habitat Quality in the Lijiang River Basin Based on the InVEST Model
摘要
Abstract
The habitat of a river basin is often affected by the interaction between natural environments and human activities,which make its fragile ecological balance easily disrupted.Studying changes in habitat quali-ty of river basins is crucial for the restoration of damaged habitats.ArcGIS10.8 and the Integrated Valuation of Ecosystem Services and Tradeoffs(InVEST)model were employed to evaluate the landscape pattern and habitat quality of the Lijiang River Basin from 1990 to 2020.The characteristics and correlations of spatio-temporal pattern changes were explored by spatial analysis.The results were described as follows:(1)From 1990 to 2020,the overall landscape pattern of the Lijiang River Basin was dominated by arable land and forest land,which accounted for over 80％.The proportion of arable land decreased from 23.88％to 22.75％,with most of it being converted to construction land,which led to a trend towards landscape fragmentation and in-creased landscape complexity.(2)On a basin-wide scale,the habitat quality was generally at a medium to high level.The average quality of habitats in 1990,2000,2010,and 2020 were 0.71,0.71,0.70,and 0.68,respec-tively,showing a declining trend.Low-quality areas continued to increase.Particularly,the habitat quality de-cline was obvious in the central core area of the basin.Habitat quality was strongly correlated with the Ag-gregation Index(AI),Shannon-Wiener Diversity Index(SHDI),and the areas of water and forest land.Under the influence of eco-environment management,the landscape pattern of the Lijiang River Basin has improved,with effective curbing of habitat degradation.The findings provide a scientific reference for the comprehensive management and ecological restoration of river ecosystems.关键词
生境质量/景观格局/时空动态变化/漓江流域Key words
habitat quality/landscape pattern/spatiotemporal dynamic changes/Lijiang River Basin分类
管理科学引用本文复制引用
胡露瑶,代俊峰,郑文俊,齐姗姗,莫建英..基于InVEST模型的漓江流域景观格局及生境质量时空演变分析[J].广西科学,2024,31(6):1156-1167,12.基金项目
广西重点研发计划项目"生态水文调控下的岩溶湿地固碳减排技术研究与示范"(桂科AB23026045)和广西哲学社会科学研究课题"漓江流域乡村景观遗产价值识别及其活化利用路径研究"(22FMZ027)资助. （桂科AB23026045）
