干旱区研究2025，Vol.42Issue(6)：1080-1092,13.DOI:10.13866/j.azr.2025.06.11
基于PLUS-InVEST模型的三江源土地利用变化动态模拟与生境质量
Dynamic simulation of land use change and habitat quality in the Three River Source Region based on the PLUS-InVEST models
摘要
Abstract
The ongoing decline in biodiversity adversely effects ecosystem services.Investigating spatiotemporal changes in land use and habitat quality in the Three River Source Region is crucial for ecological protection and restoration.This study,based on the PLUS model and the InVEST model's habitat quality module,conducts multi-scenario simulations to predict land use changes and estimate habitat quality.The results are as follows:(1)During the historical period,9663.53 km2 of grassland converted to unused land,represented the largest pro-portion of total land conversion,whereas unused land converted to grassland only covered 3659.27 km2,the grass-land degraded into unused land to a relatively serious extent in the Three River Source Region.(2)Multi-scenario predictions for 2030 reveal that the biodiversity conservation scenario performs best,followed by the grassland protection scenario,then the water resources protection scenario,and finally the natural development scenario.(3)Among conversion types,the contribution rate of converting unused land to grassland in enhancing habitat quality is highest at 0.7167,followed by that of converting unused land to water bodies,at 0.2603.Implementing biodiversity protection strategies,resolving the grass-livestock conflict,and enhancing management of unused land,while reducing grassland-to-unused land conversion will help mitigate the decline in habitat quality.关键词
三江源/土地利用变化/生境质量/InVEST模型/PLUS模型Key words
Three River Source Region/land use change/habitat quality/InVEST model/PLUS model引用本文复制引用
刘小明,郑世妍,乔占明..基于PLUS-InVEST模型的三江源土地利用变化动态模拟与生境质量[J].干旱区研究,2025,42(6):1080-1092,13.基金项目
青海理工学院(博士/硕士)论文延伸科研培育计划(202301lwys021) （博士/硕士）
青海理工学院"昆仑英才"人才引进科研项目(W2023-QL-GKLYCZX-034)资助 （W2023-QL-GKLYCZX-034）
