[利用 PM2.5 浓度遥感生态指数分析峰峰矿区生态环境质量的时空特征及驱动力]。

Q2 Environmental Science Huanjing Kexue/Environmental Science Pub Date : 2024-10-08 DOI:10.13227/j.hjkx.202311223
Jing-Han Zhang, Wei Zhang, An-Zhou Zhao, Li-Hui Sun
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引用次数: 0

摘要

峰峰矿区是中国重要的产煤区,大规模的煤矿开采造成了严重的环境问题。为促进煤基城市转型,必须探究该地区生态环境质量的时空演变及其驱动因素。本研究基于谷歌地球引擎(GEE)平台的陆地卫星数据,构建了一个新的遥感模型。平台的陆地卫星数据,构建了基于遥感的峰峰矿区生态指数(RSEInew)的生态指数(RSEInew)。利用趋势分析法和地理探测法评估了 RSEInew 的时空演变及其驱动因素。结果表明:①2000-2020 年,峰峰矿区 RSEInew 呈波动上升趋势(趋势 = 0.002 2),生态环境质量良好和优良比例呈上升趋势,由 2000 年的 24.80%上升到 2020 年的 65.54%。RSEInew 等级的变化表明,湿地生态环境质量等级明显改善(3 级和 4 级)的比例由 2000 年的 24.80%上升到 2020 年的 65.54%。2000-2020年,峰峰矿区生态环境质量等级明显改善(3级和4级)的比例为10.21%,主要分布在峰峰矿区西北部的和顺镇和义井镇。显著退化(-3 和-4)的比例仅为 1.58%,主要分布在峰峰矿区西北部的和顺镇和义井镇。仅占 1.58%,主要分布在临水镇和大社镇。2000-2020年,③RSEInew值明显增加的面积占18.29%,主要分布在中北部和峰峰矿区西部边缘。明显减少的区域占 9.25%,主要集中在峰峰矿区东部地区。变异系数结果表明,RSEInew 波动较大的区域主要集中在峰峰矿区中、东部的彭城镇和临水镇。从影响因子来看,2000-2020 年土地利用类型(X6)的平均 q 值为 0.2。从影响因子来看,2000-2020 年土地利用类型(X6)的平均 q 值为 0.290,远高于其他因子。社会经济因子的 q 值呈上升趋势,表明该区域生态环境质量的空间分布受人类活动的影响越来越大。交互作用结果表明,土地利用变化是影响峰峰矿区生态环境质量的关键因素。
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[Spatial and Temporal Characteristics and Driving Force Analysis of Ecological Environmental Quality in Fengfeng Mining Area with Remote Sensing Ecological Index of PM2.5 Concentration].

The Fengfeng mining area is an important coal-producing area in China and crucial environmental problems have been caused by large-scale exploitation of coal mines. The spatio-temporal evolution and driving factors of the ecological environment quality in this area must be explored for promoting the transformation of coal-based cities. Based on Landsat data of the Google earth engine (GEE) platform, this study constructed a new remote sensing-based ecological index (RSEInew) for the Fengfeng mining area from 2000 to 2020. The spatial and temporal evolution of RSEInew and its driving factors were evaluated by using trend analysis and geographic detector methods. The results showed that: ① From 2000 to 2020, the RSEInew of the Fengfeng mining area presented a fluctuating increasing trend (trend = 0.002 2), and the proportion of good and excellent ecological environmental quality showed an increasing trend, rising from 24.80% in 2000 to 65.54% in 2020. ② The change in the RSEInew grade indicated that the proportion of significant improvement (3 and 4) of ecological environment quality grade in the Fengfeng Mining area from 2000 to 2020 was 10.21%, which was mainly distributed in Hexun town and Yijing town in the northwest of the Fengfeng mining area. The proportion of significant degradation (-3 and -4) was only 1.58%, mainly scattered in Linshui town and Dashe town. ③ RSEInew values increased significantly during 2000-2020 in the area accounting for 18.29%, mainly distributed in the central and northern areas and the western fringe of the Fengfeng mining area. The significantly reduced area accounted for 9.25%, mainly concentrated in the eastern area of the Fengfeng mining area. The coefficient of variation results showed that the areas with high fluctuation of RSEInew were mainly concentrated in Pengcheng town and Linshui town in the middle and eastern Fengfeng mining area. ④ From the perspective of influencing factors, the average q value of land use type (X6) during 2000-2020 was 0.290, which was much higher than other factors. The q value of social and economic factors showed an increasing trend, indicating that the spatial distribution of ecological environment quality in this region was increasingly strongly influenced by human activities. The interaction results showed that land use change was the key factor influencing ecological environment quality in the Fengfeng mining area.

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Huanjing Kexue/Environmental Science
Huanjing Kexue/Environmental Science Environmental Science-Environmental Science (all)
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