摘要
以Landsat TM/ETM+图像为主要数据源,提取了江苏省盐城滨海湿地土地利用/覆盖信息;基于单窗算法反演了地表温度,综合分析了1992—2009年间湿地土地利用/覆盖变化(LUCC)及其对地表温度的影响。结果表明:在1992—2009年的17 a间,江苏省滨海湿地最主要的LUCC类型是人类主导型,且以自然类型向人工类型转化最为显著;互花米草、碱蓬和芦苇等自然景观总面积减少了385.52 km2,养殖场、盐田及建筑用地等人工景观总面积增加了376.97 km2;人为干扰是湿地LUCC最主要的驱动因素。在LUCC的影响下,湿地地表温度也有显著波动,多数湿地类型都有不同层次的升温。
With the support of remote sensing and geographical information system, the land use/land cover maps of the coastal wetland in Jiangsu were obtained by classifying three-period Landsat TM/ETM＋ images, and the land surface temperature （ LST） was retrieved by mono-window algorithm. Based on the classification maps and LST of 1992 , 2002 and 2009 , the authors investigated the land use/cover change and corresponding LST＆amp;nbsp;responses. The results show that the major land use/cover changes are dominated by human activities, and the most obvious change trend is from natural land cover types to manmade land use types, demonstrating that human activities are the main driving forces of wetland change. Corresponding to the land use/cover change, the land surface temperature patterns are also affected obviously, specifically, a certain degree of temperature increase trend was observed.
出处
《国土资源遥感》
CSCD
北大核心
2014年第2期112-120,共9页
Remote Sensing for Land & Resources
基金
江苏省自然科学基金项目(编号:BK2010182)
地理空间信息工程国家测绘地理信息局重点实验室经费资助项目(编号:201109)
