论文部分内容阅读
利用 TM+ SPOT影像融合数据对甘肃省定西县 2 0 0 0年到 2 0 0 1年土地利用和土地覆盖进行遥感调查 ,分析研究一年来该县土地利用结构 ,尤其是坡耕地退耕还林、还草的变化状况 ,客观评价定西县一年来的生态环境变化。初步实现了对区域生态环境变化的动态监测 ,为黄土地区退耕还林还草、生态环境调查及动态监测提供了可行的方法。
Using TM + SPOT image fusion data, remote sensing survey of land use and land cover from 2001 to 2001 in Dingxi County, Gansu Province was carried out. The land use structure in this county was analyzed and studied in one year, especially in the conversion of cropland to forestland Grass changes, an objective evaluation Dingxi County in the past year changes in ecological environment. It has initially realized the dynamic monitoring of the change of regional ecological environment and provided a feasible method for returning farmland to forest and grassland, ecological environment investigation and dynamic monitoring in the loess area.