安徽农业大学学报2012，Vol.39Issue(4)：629-636,8.
合肥市地表温度反演及热力景观格局动态变化研究
Land surface temperature retrieval and dynamic change of the thermal landscape patterns of Hefei city
摘要
Abstract
Using the remote sensing (RS) images of Landsat ETM+, Landsat TM, related statistical yearbooks, and meteorological data, the distribution of land surface temperature and the dynamic change of thermal landscape patterns of Hefei city were analyzed. The land surface temperature of Hefei city was retrieved from RS images by mono-window algorithm, and the distribution maps of the land surface temperature were figured out. The data of land surface temperature were standardized and the thermal landscape types were classified, and the multi-years distribution maps of thermal landscape types were obtained. The results showed that there were obvious heat island effects in Hefei city in 1999, 2002, 2006 and 2010. From 2002 to 2010, the region of heat island in Hefei city was expanded gradually on the based of 1999. Heat island intensity in 2010 was lower than other years and the regions with high temperature were more scattered. On the level of patch classes, the proportion of patch area ratio in regions of middle temperature, inferior high temperature and middle temperature were increased gradually from 1999. The dominant thermal landscape type was region of inferior low temperature in 1999, 2002 and 2006, but it turns into region of middle temperature in 2010. On the level of landscape, the largest patch index decreased year by year. The landscape of research region was no longer controlled by a few thermal landscape types. Simpson diversity index and simpson evenness index were increased gradually. This indicated that the heterogeneity of thermal landscape became more and more complicated. The main driving force for the dynamic change of thermal landscape patterns of Hefei city were the development of urbanization and human factors.关键词
地表温度反演/单窗算法/热力景观格局/合肥市Key words
land surface temperature retrieving/ mono-window algorithm/ thermal landscape patterns/ Hefei city分类
资源环境引用本文复制引用
李鉴清,张庆国,朱雅莉,刘琳,叶静芸..合肥市地表温度反演及热力景观格局动态变化研究[J].安徽农业大学学报,2012,39(4):629-636,8.基金项目
国家自然科学基金项目(40771117)和安徽省高校省级重点科研项目(KJ2010A121)共同资助. （40771117）
