基于景观格局指数的昆明市主城区地表温度与景观格局的关系  

The Relationship Between Surface Temperature and Landscape Pattern in the Main Urban Area of Kunming City

作　　者：和丽欣 吴利 HE Lixin;WU Li(Department of Geography and Land Engineering,Yuxi Normal University,Yuxi Yunnan 653100)

机构地区：[1]玉溪师范学院地理与国土工程学院,云南玉溪653100

出　　处：《湖北理工学院学报》2024年第6期21-28,共8页Journal of Hubei Polytechnic University

基　　金：国家自然科学基金项目(项目编号:42161041);云南省科技厅科技计划(项目编号:202305AC160089);国家级大学生创新创业训练计划项目(项目编号:202111390028)。

摘　　要：以昆明市主城区为研究区域,采用辐射传输法反演地表温度,运用ArcGIS和SPSS软件结合空间分析和统计分析方法对景观格局与地表温度进行了相关分析。结果表明:2000—2020年20年间昆明市主城区最高温总体下降,但高温区域呈扩张趋势,昆明市主城区地表温度等级以中温区和较为高温区为主,地表温度总体偏高。人造地表面积呈不断扩张趋势,与LST的相关性最强,呈正相关,相关性均大于0.6,成为城市“热源”。生态用地与LST呈负相关,成为城市的“冷源”,绿地、水体、人造地表PLAND与LST的相关系数分别为-0.664、-0.318和0.607。因此,在城市发展过程中应通过聚集绿地,降低绿地景观破碎度,分散和减少人造地表,对城市景观空间分布进行优化,缓解城市热岛,打造健康城市。In this study,the main urban area of Kunming City was taken as the research area,and the land surface temperature was retrieved by radiative transfer method.ArcGIS and SPSS software were used to analyze the correlation between landscape pattern and land surface temperature by combining spatial analysis and statistical analysis methods.Results showed that the maximum temperature of the main urban area of Kunming City decreased during 2000—2020,but the high temperature area showed an expanding trend.The surface temperature of the main urban area of Kunming City was mainly in the medium and the relatively high temperature area,and the overall surface temperature was relatively high.The man-made surface area in the main urban area of Kunming City has shown a trend of continuous expansion,the correlation is greater than 0.6,and both artificial land surface and surface temperature are positively correlated,becoming the Heat Source of the city,while ecological land is negatively correlated with LST,becoming the Cold Source of the city.The correlation coefficients between PLAND and LST of green space,water body and man-made surface are-0.664,-0.318 and 0.607,respectively.Therefore,in the process of urban development,the spatial distribution of urban landscape should be optimized by gathering green space,reducing the fragmentation of green space landscape,dispersing and reducing artificial surface,alleviating urban heat island,and building a healthy city.

关 键 词：地表温度 景观格局 景观指数 昆明市 

分 类 号：X835[环境科学与工程—环境工程]