机构地区:[1]河北工程大学矿业与测绘工程学院,邯郸056038 [2]邯郸市自然资源空间信息重点实验室,邯郸056038
出 处:《环境科学》2024年第10期5900-5911,共12页Environmental Science
基 金:国家自然科学基金项目(42171212);河北省自然科学基金项目(D2022402030,D2021402007);内蒙古自治区科技厅“科技兴蒙”重点专项(2022EEDSKJXM009-1);河北省研究生示范课程项目(KCJSX2024076)。
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=0.0022),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.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:①From 2000 to 2020,the RSEInew of the Fengfeng mining area presented a fluctuating increasing trend(trend=0.0022),and the proportion of good and excellent ecological environmental quality showed an increasing trend,rising from 24.80%in 2000 to 65.54%in 2020.②The 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.③RSEInew 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.④From 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 soc
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
分 类 号:X830[环境科学与工程—环境工程]
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