TM影像在南北方土地利用信息提取中的对比

利用2009年南北方代表地区的湖南省和吉林省TM遥感数据,针对南北方地貌形态和土地利用方式特点的不同,对比分析统一遥感影像对南北方不同地类的空间分辨率、空间布局与解译精度等的区别,剖析了南北方地区不同土地利用类型在影像上的特征。通过研究表明,南北方在空间格局上的居民点区分明显,耕地次之,林地和水域区分不明显;在光谱特征和解译精度上,耕地和居民点差异较大,水域次之,林地不明显。

Contrast with the Land Use Information Extraction in South and North by TM Images

This article was focused on difference of land use cover between Hunan province and Jilin province which was submited by TM image in 2009.In allusion to southern part and northern part difference between landforms and modes of land characteristic,it analyzed the space resolution of TM images,the space layout characteristic and the difference of southern part and northern part’s different types of land on images.The research showed that in spatial framework,the difference of housing estates between south China and north China was remarkable,tilled lands of which had less difference,forest and water were could not distinguished clearly.In spectral signature and interpretation precision,tilled lands and housing estate had the biggest difference.Water area had less difference and,forest lands had little difference.