山西农业大学学报（自然科学版）2025，Vol.45Issue(3)：85-99,15.DOI:10.13842/j.cnki.issn1671-8151.202412015
1990-2020年内蒙古察汗淖尔流域生态系统健康评价
Ecosystem health assessment of the Chahannaoer Basin in Inner Mongolia from 1990 to 2020
摘要
Abstract
[Objective]As the last line of defensing against the southward encroachment of the Hunshandake Sandy Land in the Beijing-Tianjin-Hebei region,the Chahannaoer Basin in Inner Mongolia is an important component of the ecological security barrier in Northern China.The ecosystem in this area is highly sensitive and vulnerable,making research on ecosystem health assessment of great significance for the sustainable development of the Chahannaoer Basin.[Methods]Based on remote sensing data,this study analyzed the spatio-temporal variation characteristics of land use in the Chahannaoer Basin from 1990 to 2020.The VORS model was employed to construct an ecological health assessment index system,quantitatively evaluating the health status and its spatio-temporal evolution of the basin’s ecosystem.Additionally,the relationship between land use chang-es and ecosystem health was further examined through resilience response and coupling coordination analysis.[Results](1)Cul-tivated land and grassland were the dominant land use types in the Chahannaoer Basin,which accounted for over 85%of the to-tal area.Over the past three decades,forestland and construction land continued to expand,while cropland showed a decreasing trend,primarily transitioning into forestland and grassland.(2)The Basin’s ecosystem was generally healthy,with its overall health status initially deteriorating before gradually improving.The ecosystem health index increased from 0.491 in 1990 to 0.505 in 2020.(3)Grassland,wetland,and water bodies had a significant impact on ecosystem health,with ecological resil-ience indices of 65.43,3.63,and 12.36,respectively.Forestland exhibited a moderately uncoordinated relationship with eco-system health,while severely incoordination areas were mainly wetlands and water bodies.During the study period,the cou-pling coordination between forestland,construction land,and ecosystem health was improved.[Conclusion]Since 2000,the ecosystem health of the Chahannaoer Basin in Inner Mongolia has shown signs of recovery,but it remains an ecologically fragile area.It is essential to emphasize the impact of land use changes on ecosystem health.The findlings of this study can provide sci-entific references for the protection and restoration of the ecosystem in the Chahannaoer Basin.关键词
生态系统健康/土地利用变化/VORS模型/察汗淖尔流域Key words
Ecosystem health/Land use change/VORS model/Chahannaoer Basin分类
环境科学引用本文复制引用
张子萱,郑颖,郭建英,王语馨..1990-2020年内蒙古察汗淖尔流域生态系统健康评价[J].山西农业大学学报（自然科学版）,2025,45(3):85-99,15.基金项目
内蒙古自治区科技计划项目(2022YFHH0024) （2022YFHH0024）
中国水科院基本科研业务费项目(MK0145B022021) （MK0145B022021）
