| 融合PM2.5浓度遥感生态指数的峰峰矿区生态环境质量时空特征及驱动力分析 |
| 摘要点击 1153 全文点击 254 投稿时间：2023-11-26 修订日期：2024-01-04 |
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| 中文关键词 GEE平台 新型遥感生态指数（RSEInew） 时空演变 驱动因素 峰峰矿区 |
| 英文关键词 GEE platform new remote sensing based ecological index（RSEInew） space-time evolution driving factors Fengfeng mining area |
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| 中文摘要 |
| 峰峰矿区作为我国重要的煤炭主产区,其煤炭开采和利用对生态环境造成了严重的影响,深入了解该地区生态环境质量时空演变及其驱动因素对于推进煤炭型城市转型具有重要意义. 基于GEE平台的Landsat数据,构建了2000~2020年峰峰矿区新型遥感生态指数（RSEInew）,结合趋势分析和地理探测器等方法评估RSEInew的时空演变规律及驱动要素. 结果表明：①2000~2020年峰峰矿区的RSEInew呈现波动增加趋势（trend=0.002 2）,其生态环境质量良和优等级占比呈现增加的趋势,其值由2000年的24.80%上升到2020年的65.54%；②RSEInew等级变化表明2000~2020年峰峰矿区生态环境质量等级显著改善（3和4）的比例为10.21%,主要分布在其西北部的和村镇和义井镇等地；显著退化（-3和-4）的比例仅为1.58%,主要零星分布在东部的临水镇和大社镇；③2000~2020年期间RSEInew值呈显著增加（P<0.05）的面积占比为18.29%,主要集中分布在中北部地区以及西部边缘地带；显著减小（P<0.05）的面积占比为9.25%,主要集中在峰峰矿区东部地区. 变异系数结果表明,RSEInew高波动的地区主要集中在峰峰矿区的中部以及东部的彭城镇和临水镇；④从影响因素来看,2000~2020年期间土地利用类型（X6）的q值均值为0.290,远大于其他因子. 社会经济要素的q值呈现上升的趋势,表明该地区生态环境质量的空间分布受人类活动的影响越来越强. 交互作用结果表明土地利用变化是峰峰矿区生态环境质量的关键影响要素. |
| 英文摘要 |
| 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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