生态环境学报2025，Vol.34Issue(12)：1841-1852,12.DOI:10.16258/j.cnki.1674-5906.2025.12.002
黄河流域(内蒙古段)景观生态风险与生境质量的耦合协同关系研究
Research on the Coupling and Synergistic Relationship between Landscape Ecological Risk and Habitat Quality in the Yellow River Basin(Inner Mongolia Section)
摘要
Abstract
Ecological risk refers to the adverse impact on the structure of an ecosystem in a region under external pressure and disturbance.The habitat quality of a region indicates the potential of the ecosystem to provide the necessary conditions for the survival and reproduction of species within it.Ecological risk assessment and habitat quality assessment,as two sides of the same coin of ecosystem health,are closely related to ecosystem health.Exploring the correlation between landscape ecological risk and habitat quality in the Yellow River Basin(Inner Mongolia section)is of great significance for promoting the high-quality development of ecological civilization and enhancing ecosystem security in the Basin.This study calculated the regional landscape ecological risk index and habitat quality index using landscape risk loss and habitat quality models.We used Moran's I index and a coupling coordination model to explore the spatiotemporal evolution and coupling relationship between landscape ecological risk and habitat quality in the Yellow River Basin(Inner Mongolia section)from 2000‒2020.The results showed that:1)Land use in the Yellow River Basin(Inner Mongolia section)is mainly grassland and unused land,accounting for more than 70%,whereas the areas of forest land and water are relatively small.The area of construction land continued to expand from 2000 to 2020,and the area of grassland was reduced during the same period.2)The overall landscape ecological risk in the Yellow River Basin(Inner Mongolia section)was low from 2000 to 2020,with the risk level showing an upward trend.Spatially,this manifested as a shift from low risk to high risk in the eastern part of Ordos City and the northern part of Bayannur City.The overall habitat quality was relatively high,and spatially,it showed the characteristics of low values distributed in the central plain area dominated by construction and cultivated land,and high values concentrated in the plateau area in the eastern part of the study area.This was characterized by a shift from low to high risk in the central region.The habitat quality was generally high,with a spatial pattern of low quality in the center and high quality in the surrounding areas.Over time,areas with low habitat quality expanded,whereas areas with high-quality habitat shrank.3)A strong negative correlation exists between landscape ecological risk and habitat quality,exhibiting a spatial clustering pattern of adjacent high and low values.From 2000 to 2020,the coupling degree between landscape ecological risk and habitat quality in the Yellow River Basin(Inner Mongolia section)was relatively high.The highly coupled areas were mainly distributed in the Hetao Plain,the antagonistic areas were primarily concentrated in the western grassland,and the transition areas were mainly located in the sandy and mountainous areas of the eastern and northern regions.The coupling coordination level between the two was mainly mild dysregulation and near-dysregulation,showing an upward trend.Based on the above research results,the study area was classified into three types of regions for differentiated management and control.The results provide a reference for a deeper understanding of the coupling and synergistic relationship between ecological risk and habitat quality,as well as for regionalized management and control in the Yellow River Basin(Inner Mongolia section).关键词
景观生态风险/生境质量/耦合协调度/InVEST模型/黄河流域(内蒙古段)Key words
landscape ecological risk/habitat quality/coupling coordination degree/InVEST model/Yellow River Basin(Inner Mongolia Section)分类
资源环境引用本文复制引用
张艳,张少娟,吕韬,贺慧汀..黄河流域(内蒙古段)景观生态风险与生境质量的耦合协同关系研究[J].生态环境学报,2025,34(12):1841-1852,12.基金项目
国家自然科学基金项目(42371210) （42371210）
陕西省重大科技项目(2022ZDLSF07-05) （2022ZDLSF07-05）
