基于地表温度和植被指数的郑州市热岛效应分析  

Analysis of heat island effect in Zhengzhou based on land surface temperature and vegetation index

作　　者：王燕强 杜婷婷 叶希琛 何林倩 徐畅 王德彩[3] 岳庆玲[1] WANG Yanqiang;DU Tingting;YE Xichen;HE Linqian;XU Chang;WANG Decai;YUE Qingling(School of Resource and Environment,Henan Institute of Science and Technology,Xinxiang 453003,China;College of Forest,Beijing Forest University,Beijing 100083,China;College of Forest,Henan Agriculture University,Zhengzhou 450002,China.)

机构地区：[1]河南科技学院资源与环境学院,河南新乡453003 [2]北京林业大学林学院,北京100083 [3]河南农业大学林学院,河南郑州450002

出　　处：《河南科技学院学报（自然科学版）》2020年第4期56-61,共6页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省科技攻关计划项目(172102110056)。

摘　　要：以郑州市为研究区,采用2001、2008和2015年Landsat遥感影像,分析郑州市地表温度时空变化及其与植被指数的关系.采用辐射传输方程法反演地表温度,利用ENVI 5.1提取归一化植被指数(NDVI)值,在ArcGIS10.2中制出郑州市地表温度图,根据地表温度与NDVI建立回归方程.结果表明:地表温度与NDVI呈明显负相关关系.在2001、2008和2015年,由于城市扩建,郑州市植被覆盖度降低,NDVI值低的地区面积不断增加;中温区面积逐渐减少,高温区面积逐年增加,大体上由西南向东北方向扩散.Based on Landsat remote sensing images from 2001,2008 and 2015,the spatial and temporal variation of land surface temperature and its relationship with vegetation index were analyzed.the surface temperature was retrieved by the radiation transmission equation method,and the normalized vegetation index(NDVI)value was extracted by ENVI 5.1.the surface temperature map of Zhengzhou was produced in the Arc GIS10.2.the regression equation was established according to the surface temperature and NDVI.As a result,there is a negative correlation between surface temperature and NDVI.During 2001,2008 and 2015,due to the expansion of the city,the vegetation coverage of Zhengzhou City decreased,and the area of the area with low NDVI value continued to increase;the area of the middle temperature area gradually decreased,and the area of the high temperature area increased year by year,spreading from southwest to northeast in general.

关 键 词：地表温度 植被指数 遥感 

分 类 号：X16[环境科学与工程—环境科学]