沉积与特提斯地质2025，Vol.45Issue(2)：446-458,13.DOI:10.19826/j.cnki.1009-3850.2024.09006
基于IRSEI的生态环境质量评价与影响因素分析:以攀枝花南部为例
Evaluation of ecological environment quality and analysis of influencing factors based on IRSEI:A case study of the southern region of Panzhihua
摘要
Abstract
The ecological environment in mining activity areas is fragile,with frequent ecological problems such as soil erosion,vegetation damage,and reduced biodiversity.To provide a comprehensive and diverse evaluation of ecological environment quality in mining areas,this paper presents an improved remote sensing ecological index(IRSEI).By incorporating a biodiversity index into the original remote sensing ecological index(RSEI),it better depicts the diversity and complexity of the ecological environment.Taking the southern region of Panzhihua as a case study,IRSEI values were calculated for the years 2000 to 2022 utilizing landsat images and digital elevation model(DEM)data.Based on transfer path analysis and local spatial autocorrelation indicators,the spatiotemporal distribution and change characteristics of ecological environment quality were analyzed.Additionally,causality analysis was conducted using geographic detectors.The results show that there is a clear polarization trend in the ecological environment quality of the study area.Areas with excellent and poor ecological quality both exhibit an increasing trend in area,while areas with moderate ecological quality are decreasing.The spatial distribution of ecological environment quality in the study area shows significant clustering.Highly clustered areas are mainly distributed in the mountainous regions in the north and east,while lowly clustered areas are mainly distributed along the banks of the Jinsha River and in urban areas.The main factors influencing the ecological environment quality are normalized difference vegetation index(NDVI),normalized difference built-up and soil index(NDBSI),and biodiversity index(BI),while the influence of land surface temperature(LST)is relatively minor.The improvement in ecological environment quality is mainly attributed to increased vegetation coverage and biodiversity.Conversely,the deterioration of ecological environment quality is mainly affected by mining development,rocky desertification,and urban expansion.This paper provides a new method and reference for regional ecological environment monitoring and protection.关键词
遥感生态指数/生物多样性/攀枝花/生态环境质量/矿业区Key words
remote sensing ecological index/biodiversity/Panzhihua/ecological environment quality/mining area分类
环境科学引用本文复制引用
李泽虹,吴青松,李茜,周学铖..基于IRSEI的生态环境质量评价与影响因素分析:以攀枝花南部为例[J].沉积与特提斯地质,2025,45(2):446-458,13.基金项目
中国地质调查局"攀西冕宁—德昌地区稀土及多金属矿产地质调查"项目(ZD20220301) （ZD20220301）
