干旱区地理2025，Vol.48Issue(7)：1220-1232,13.DOI:10.12118/j.issn.1000-6060.2024.425
基于PLUS-InVEST模型的甘肃通渭滑坡区生境质量时空变化及预测
Spatiotemporal variation and prediction of habitat quality in Tongwei landslide area of Gansu Province based on PLUS-InVEST model
摘要
Abstract
The study of the spatial and temporal evolution of habitat quality in the landslide area of Tongwei County,Gansu Province,is crucial for the ecological sustainable development of Tongwei County and similar re-gions in northwest China.First,the patch-based land use simulation model was employed to predict land use types for the year 2035.Subsequently,the integrated valuation of ecosystem services and tradeoffs model was uti-lized to analyze and predict ecosystem quality as well as the temporal and spatial evolution characteristics of habi-tat quality in Tongwei County and the landslide area from 1985 to 2020 and projected to 2035.Finally,the geode-tector model was applied to identify the driving factors behind changes in habitat quality in the landslide area of Tongwei County.The results showed the following.(1)From 2020 to 2035,all land use types in Tongwei County are expected to expand and shift,with the most significant transition occurring from arable land to grassland.Ar-able land and grassland will continue to dominate the land use types,whereas other types will represent a rela-tively small proportion.(2)Spatially,habitat quality in Tongwei County and the landslide area exhibited an in-creasing trend from south to north,remaining predominantly low and lower grades.Habitat degradation in the landslide area was dominated by moderate and high degradation,with decreasing degradation from south to north.(3)Temporally,from 1985 to 2035,habitat quality in Tongwei County and the landslide area followed a pattern of decreasing,then increasing,and subsequently decreasing again.In Tongwei County,the linear trend of the average habitat quality showed a decline,whereas in the landslide area,it showed an increase.The average habitat degradation followed a pattern of decreasing followed by increasing,with a linear fit indicating an upward trend.(4)The normalized vegetation index(NDVI)is the most significant factor affecting spatial differentiation of habitat quality in landslide areas.Interactions among factors are predominantly characterized by nonlinear en-hancement,with the interaction between NDVI and average annual precipitation being the strongest.关键词
滑坡区/PLUS模型/InVEST模型/生境质量/地理探测器/通渭县Key words
landslide area/PLUS model/InVEST model/habitat quality/geographical detector/Tongwei County引用本文复制引用
张晓明,宿星,张军,贾静..基于PLUS-InVEST模型的甘肃通渭滑坡区生境质量时空变化及预测[J].干旱区地理,2025,48(7):1220-1232,13.基金项目
甘肃省重点研发计划项目(23YFFA0030) （23YFFA0030）
甘肃省科学院应用研发项目(2021JK-08) （2021JK-08）
国家自然科学基金项目(42067066) （42067066）
甘肃省重点人才项目(2022RCXM094) （2022RCXM094）
第二次青藏高原综合科学考察研究项目(2019QZKK0902)资助 （2019QZKK0902）
