水土保持研究2024，Vol.31Issue(3)：350-362,372,14.DOI:10.13869/j.cnki.rswc.2024.03.021
基于土地覆被变化的北京市生态环境质量时空分异特征及影响因素
Spatiotemporal Change and Driving Factors of the Eco-Environment Quality in Beijing Based on RSEI
摘要
Abstract
[Objective]The aim of this study is to evaluate the ecological environment status of a region,which is of great practical significance for promoting urban construction and economic development,achieving ecological environment protection and sustainable economic and social development in Beijing.[Methods]The remote sensing ecological index(RSEI)coupled with the characteristics of regional greenness,humidity,dryness,and heat was used to explore the temporal and spatial dynamics of eco-environmental quality in Beijing from 1990 to 2020.Sen trend analysis,Manna-Kendall mutation point test,Hurst method,multiple regression,and structural equation model were employed to explore the impact of different environmental factors on the ecological environment quality of Beijing.[Results](1)From 1991 to 2020,the overall ecological environment quality in Beijing showed a decreasing trend.Among them,the ecological environment quality of forest areas showed a trend of'increasing decreasing increasing',while the ecological environment quality of shrub areas showed a trend of'increasing decreasing increasing decreasing'.The ecological environment quality of grasslands,farmland,wetlands,and impermeable areas showed a trend of'decreasing increasing decreasing',while the ecological environment quality of wasteland areas had always shown a trend of'decreasing'.(2)The ecological environment quality of impermeable areas was mainly affected by the negative impact of dryness and the positive impact of humidity.Greenness and heat mainly affected them by affecting humidity and dryness.The ecological environment quality of grassland,wasteland,and shrub areas was mainly negatively affected by heat and positively affected by greenness,humidity,and dryness.The ecological environment quality of cultivated land areas was mainly negatively affected by dryness and heat.The ecological environment quality of forest areas was greatly affected by humidity,dryness,heat,and greenness.The ecological environment quality of wetland areas was positively affected by heat,greenness,and humidity,rather than negatively affected by dryness.[Conclusion]The overall direction of policies in maintaining and managing the ecological environment in Beijing is effective.The ecological environment quality in the vast majority of regions is improving,while the ecological environment quality of a few areas has slightly decreased.The targeted policy adjustments should be made to improve the ecological environment quality.However,further standardization of land cover in Beijing and strengthening of natural disaster prevention strategies are still needed in the later stage.关键词
北京市/生态环境质量/遥感生态指数/土地利用Key words
Beijing/eco-environment quality/remote sensing ecological index/land use分类
资源环境引用本文复制引用
赵俊远,高翔,梁静波..基于土地覆被变化的北京市生态环境质量时空分异特征及影响因素[J].水土保持研究,2024,31(3):350-362,372,14.基金项目
河南省哲学社会科学规划一般项目(2022BJJ092) （2022BJJ092）
河南省高等学校重点科研项目(23A630030) （23A630030）
信阳学院校级重点科研项目(2023-XJWZD-001) （2023-XJWZD-001）
