利用夜间灯光影像的云南省县域光污染研究  

Light Pollution Research Based on Nighttime Light Images at County Level in Yunnan Province

作　　者：李媛婷 李益敏[2,3] 吴博闻 王东驰 赵娟珍 LI Yuanting;LI Yimin;WU Bowen;WANG Dongchi;ZHAO Juanzhen(Institute of International Rivers and Ecological Security,Yunnan University,Kunming 650500,China;School of Earth Sciences,Yunnan University,Kunming 650500,China;Domestic High Score Satellite Remote Sensing Geological Engineering Research Center,Yunnan University,Kunming 650500,China)

机构地区：[1]云南大学国际河流与生态安全研究院,昆明650500 [2]云南大学地球科学学院,昆明650500 [3]云南大学云南省高校国产高分卫星遥感地质工程研究中心,昆明650500

出　　处：《遥感信息》2023年第5期98-105,共8页Remote Sensing Information

基　　金：云南省科技厅云南大学联合基金重点项目(2019FY003017);国家自然科学基金项目(41161070);中国地质调查局地质调查项目(DD20221824)。

摘　　要：为了量化云南省各区县光污染对区域物种丰度与生态安全带来的威胁,基于夜间灯光数据计算了各县域单元的总夜光值和夜光平均值,分析了其时空转移、空间聚集与重心迁移特征,并结合县域哺乳类、两栖类和爬行类物种密度分析了夜间灯光威胁性。结果表明:从光污染程度来看,云南省整体呈以昆明主城区为中心向四周减弱的分布格局;从光污染时空特征来看,2000—2020年间所有县域均经历了光污染的增加,且光污染增长具有明显的空间聚类特征;从光污染威胁性来看,整体受光污染威胁不大,但一些光污染程度的最大增长发生在3类物种密度最大的地方,亟需采取科学合理的政策与措施来预防和缓解这些区域内人类活动可能带来的不良生态效应。In order to quantify the threats posed by light pollution to regional species abundance and ecological security in each county of Yunnan province,the study calculates the total night light value and the average night light value based on the night light data,analyzes its spatial and temporal shift,spatial aggregation and center of gravity migration characteristics,and analyzes the night light threateningness in conjunction with the density of mammalian,amphibian and reptile species in the county.The results show that:from the light pollution level,the overall distribution pattern of Yunnan province is centered on the counties around the main urban area of Kunming,and the overall light pollution level increases year by year;from the spatial and temporal characteristics of light pollution,all counties experience an increase in light pollution during 2000-2020,and the growth of light pollution has obvious spatial clustering characteristics;in terms of the threatening degree of light pollution,the overall threat of light pollution is not large,but some of the largest growth of light pollution occurs in places with the highest density of the three species,and reasonable policies and measures are urgently needed to prevent and mitigate the possible adverse ecological effects of human activities in these areas.

关 键 词：夜间灯光 光污染 空间分析 物种密度 县域单元 

分 类 号：X171.5[环境科学与工程—环境科学] F062.2[经济管理—政治经济学]