基于MODIS影像的呼和浩特市城市热岛效应与植被关系研究  

Study on the Relationship between Urban Heat Island Effect and Vegetation in Hohhot City Based on MODIS Image

作　　者：张泽 胡宝清 Zhang Ze;Hu Baoqing(The Key Laboratory of the Ministry of Education for Environmental Evolution and Resource Utilization in Beibu Gulf,Nanning Normal University;School of Geography and Planning,Nanning Normal University,Nanning 530001,China)

机构地区：[1]南宁师范大学北部湾环境演变与资源利用教育部重点实验室 [2]南宁师范大学地理科学与规划学院,南宁530001

出　　处：《中国资源综合利用》2020年第8期44-53,共10页China Resources Comprehensive Utilization

摘　　要：为缓解城市热岛效应、改善城市生态环境的质量,本文基于2006年、2011年和2017年的MODIS影像数据,采用分裂窗算法反演呼和浩特市主城区地表温度,研究了呼和浩特市主城区热岛效应与植被的关系。结果表明,从2006-2017年地表温度空间分布的演变过程来看,研究区内各个温度等级的面积都明显向外扩张,市区地表温度明显高于郊区地表温度,形成岛状分布的高温地区,边界清晰,证明该城市存在热岛效应;2006年、2011年以及2017年不同温度区均呈不规则的环状分布,呈现出地表温度从城市中心向郊区逐渐降低的热岛空间分布格局;LST-NDVI的散点分布整体呈现负相关。In order to alleviate urban heat island effect and improve the quality of urban ecological environment,based on the MODIS image data in 2006,2011 and 2017,this paper used the split window algorithm to retrieve the surface temperature in the main urban area of Hohhot,and studied the relationship between the heat island effect and vegetation in the main urban area of Hohhot.The results showed that from the evolution process of the spatial distribution of surface temperature from 2006 to 2017,the area of each temperature level in the study area had obviously expanded outward,and the surface temperature in the urban area was significantly higher than that in the suburbs,forming an island-shaped hightemperature area,the boundary was clear,which proved that the city has a heat island effect.In 2006,2011,and 2017,different temperature zones were distributed in an irregular ring shape,showing a spatial distribution pattern of heat islands in which the surface temperature gradually decreased from the city center to the suburbs.The scattered point distribution of LST-NDVI showed a negative correlation overall.

关 键 词：分裂窗算法 热岛效应 NDVI 呼和浩特市 

分 类 号：X16[环境科学与工程—环境科学] P407[天文地球—大气科学及气象学]