关键词: 遥感, 矿业城市, 生态环境, 景观生态指数

Abstract: With the depletion of coal resources in the east and the strategic shift of the mining center to the west,the green transformation and development of mining cities in the east has put forward new requirements for the evaluation of ecological environment quality. At present,most relevant researches focus on the intensive and high-intensity mining areas in the west,and there are few studies on the applicability of relevant methods and experiences to the eastern mining cities. Secondly, the current research on the ecological environment of mining areas based on statistical results cannot provide quantitative analysis of spatial heterogeneity. Furthermore,under the relatively small mining intensity,the impact of coal mining itself on the environment is controversial,while the ecological effects of coal storage and transportation have not received much attention. The Landsat remote sensing images from 2013 to 2020 were used,the Fengfeng mining area of the industrial and mining city was taken as the study area,and the RSEI ( Remote Sensing Ecology Index),coupled with the landscape ecological index,were constructed to the study area. Heterogeneity was quantitatively analyzed,the ecological effects of the local coal " mining-storagetransportation" process were studied,and the driving factors were analyzed. The results showed that:from 2013 to 2020,the habitat quality of the Fengfeng mining area showed a small fluctuation,but the structure configuration was obviously optimized; The landscape index analysis showed that the spatial heterogeneity of each grade of RSEI was strengthened,and the non-equilibrium distribution phenomenon was more obvious;The process of coal mining-storage-transportation had a certain disturbing effect on the ecological environment and its stability,the effect of coal mining was not strong,and the ecological impact of storage and transportation present a gradient effect;RSEI had a relatively stable positive correlation with elevation,slope,and vegetation cover,and a relatively stable negative correlation with light index. The study results can provide scientific reference for the coordinated sustainable development of mining cities.

Key words: remote sensing,mining city,ecological environment,landscape ecological index