基于地理探测器的闽三角城市群植被覆盖时空变化及影响因素研究  

Study on Temporal and Spatial Changes of Vegetation Coverage and Its Influencing Factors in the Urban Agglomeration of Min Delta Based on the Geographical Detector Method

作　　者：吴思佳 吴伟[1,2] 陈文惠 张文燕[1] 林金煌 程瑞彤[1] WU Si-jia;WU Wei;CHEN Wen-hui;ZHANG Wen-yan;LIN Jin-huang;CHENG Rui-tong(School of Geographical Sciences,Fujian Normal University,Fiuhou 350007,China;State Key Laboratory of Resources and Environmental Information System,Institute of GeographicalSciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]福建师范大学地理科学学院,福建福州350007 [2]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101

出　　处：《福建师范大学学报（自然科学版）》2019年第5期81-88,共8页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家重点研发计划项目(2016YFC0502901)

摘　　要：基于研究区1995、2000、2005、2010和2015年的Landsat TM/OLI影像,定量分析其植被覆盖空间格局及其变化规律,并运用地理探测器探究植被覆盖影响因素的空间差异性.结果表明:1995-2015年闽三角城市群低、中低植被覆盖总体增加,中、中高和高植被覆盖总体减少,植被覆盖整体呈退化趋势;闽三角地区植被覆盖水平与垂直空间变化明显,其中在水平空间上,严重退化区和中度退化区主要位于泉州东南区域和厦门地区;在垂直空间上,植被覆盖度分别在海拔1 200~1 500 m、坡度30°~40°达到最大值,阴坡植被覆盖度高于阳坡,而平地植被覆盖度最低;植被覆盖变化主要受人类活动影响,其中人口密度、建设用地和GDP的影响较大,双因子之间的协同作用相对于单因子对植被覆盖变化的影响力更强.Based on Landsat TM/OLI images of 1995,2000,2005,2010 and 2015,this study quantitatively analyzed the spatial pattern of vegetation coverage and its variation in the urban agglomeration of Min Delta,and usedthe geographical detector method to explore the factors.The results show thatthe low vegetation coverage and middle-low vegetation coverage increased,the middle vegetation and middle-high vegetation and high vegetation decreased,and the overall vegetation coverage showed a degraded trend in the urban agglomeration of Min Delta from 1995 to 2015.The vegetation coverage of horizontal and vertical space was significantly different in Min Delta.In the horizontal space,the severely degraded area and the moderately degraded area were mainly located in the southeast of Quanzhou and Xiamen regions.In the vertical space,the vegetation coverage reached a maximum at 1 200~1 500 m altitude and 30°~40° slope respectively,and it was higher in the shady slope than the sunny slope.However,the vegetation coverage was the lowest in the flat.The vegetation cover change was mainly affected by human activities,and the population density,construction land and GDP have a greater impact.The synergy between two factors has a stronger influence on the change of vegetation cover than the single factor.

关 键 词：植被覆盖度 时空变化 地理探测器 闽三角 

分 类 号：Q948[生物学—植物学]