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当前位置: 首页 > 文章 > 基于Landsat8卫星影像的重工业城市热岛效应研究——以柳州市为例 中南林业科技大学学报 2015,35 (7) 74-80
Position: Home > Articles > Study on urban heat island effect of heavy industries based on landsat 8 satellite imagery——A case study in Liuzhou city Journal of Central South University of Forestry & Technology 2015,35 (7) 74-80

基于Landsat8卫星影像的重工业城市热岛效应研究——以柳州市为例

作  者：
黎良财;Deng-sheng LU;张晓丽;邓利;买凯乐
单  位：
Center;北京林业大学林学院;广西生态工程职业技术学院
关键词：
城市热岛;Landsat8 OLI/TIRS;地表温度;土地利用/覆盖;重工业城市
摘  要：
以中国南方重工业城市广西柳州市为研究区,选择2013年12月、2014年6月Landsat8 OLI/TIRS多光谱和热红外影像为数据源,经辐射定标、大气校正等预处理后采用单窗算法反演地表温度(LST),利用决策树方法进行土地利用/覆盖分类,并分析柳州市城市热岛的时空分布特征、地表温度与土地利用/覆盖的关系等相关规律。结果表明:柳州市存在明显的热岛效应,夏季热岛强烈区域面积比冬季增加72.54%;地表温度与土地利用/覆盖有显著关系,地表平均温度表现为城市>裸地>耕地>林地>水体,在城市建成区适当增加绿化和水体面积是缓解城市热岛效应的有效方法。
译  名：
Study on urban heat island effect of heavy industries based on landsat 8 satellite imagery——A case study in Liuzhou city
作  者：
LI Liang-cai;Deng-sheng LU;ZHANG Xiao-li;DENG Li;MAI Kai-le;Forestry College, Beijing Forestry University;Guangxi Eco-Engineering Vocational and Technical College;Center for Globe Change and Earth Observations, Michigan State University;
关键词：
Urban Heat Island(UHI);;Landsat8 OLI/TIRS;;Land Surface Temperature(LST);;Land Use/Land Cover(LULC);;City with Heavy Industries
摘  要：
In order to monitor the spatial-temporal distribution of urban heat island effect and discover the relationship between land surface temperature(LST) and land use/land cover(LULC) in Liuzhou city which is a heavy industry city in southern China, Landsat8 OLI&TIRS imagery in December 2013 and June 2014 were used as the data source. After some pre-process of radiation calibration and atmospheric correction, LST was retrieved using the Mono-window Algorithm and LULC was detected by CART decision tree classification. And also, heat island intensity(HII) index was calculated and the area was counted with strong HII respectively in the summer and winter. Results showed that there is obvious heat island effect in Liuzhou city and the area with strong heat island effect in summer 72.54% more than that in winter. There is a significant relationship between LST and LULC, the average LST according to the descending order in Liuzhou city are urban, bare-land, cropland, forest and water. Thus, increasing the proportion of greening and water as appropriate in built up area is an effective method to relieve urban heat island effect.

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