Remote sensing of impervious surface dynamics of Xiamen City, southeastern China
The worldwide urban sprawl has led to thesubstitution of natural vegetation-and water-dominated lands byimpervious materials such as building roofs and paved roads.This has brought about significant impacts on ecosystems on local, regional and global scale. Taking Xiamen City of Fujianprovince, China, as a case, this study investigated the impervioussurface dynamics of the city during the last 20 years. Thenormalized difference impervious surface index (NDISI) was usedto extract impervious surfaces of the city from Landsat TMimagery. The results show that the impervious surface area of thecity has increased by about eight times at a ~10 % average annualgrowth rate during the 20 study years. Further investigation ofthe relationships among impervious surface, land surfacetemperature (LST), vegetation and water has revealed a strongpositive exponential relationship between impervious surface areaand LST, while vegetation and water are inversely related to LST.
Hanqiu Xu Dongfeng Lin
College of Environment and Resources, Institute of Remote Sensing Information Engineering, Fuzhou University, Fuzhou,China
国际会议
The 19th International Conference on Geoinformatics(第19届国际地理信息科学与技术大会 19 Geoinformatics)
上海
英文
1-6
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）