基于遥感生态指数的淮南矿区生态环境质量变化分析

Analysis on the change of ecological environment quality in Huainan mining area based on remote sensing ecological index

淮南矿区长期的煤炭开采活动引发了地面沉陷,进而影响到了矿区生态环境,在矿区开展生态环境质量评价很有必要。利用遥感生态指数(RSEI)模型计算得到研究区各年份的生态环境质量综合指数,采用自然截断法对研究区生态环境质量进行分级。结果表明,生态环境质量优良的区域主要为耕地和水域,城镇、工矿、农村居民地生态环境质量较差;分析得出2013—2019年淮南矿区生态环境质量总体呈变差趋势,水体区域生态环境状况几乎不变,城镇区域生态环境状况好转,部分农田区域生态环境变差。

The long-term coal mining activities in Huainan mining area have led to ground subsidence and then affected the ecological environment of the mining area.It is necessary to carry out ecological environment quality evaluation in the mining area.In this paper,the remote sensing ecological index(RSEI)model is used to calculate the comprehensive index of eco-environmental quality in each year of the study area,and the natural truncation method is used to classify the eco-environmental quality of the study area.The results show that the areas with good ecological environment quality are mainly cultivated land and water areas,while the ecological environment quality of cities,towns,industrial and mining areas and rural residential areas is poor;the analysis shows that from 2013 to 2019,the ecological environment quality of Huainan mining area generally showed a worsening trend,the ecological environment of water area was almost unchanged,the ecological environment of urban areas improved,and the ecological environment of some farmland areas deteriorated.