摘要
继续深入研究我国耕地定级,对区域耕地的数量、质量等的评价以及更好地保护和利用土地资源具有重要的现实意义。采用高分辨率的QuickBird遥感影像,提出了不同于传统农地定级的技术路线,通过高通滤波融合、几何校正,建立了地物解译标志和屏幕矢量化分类生成土地利用现状图,提高了大比例尺制图效果,并制作出了1:2 000比例尺耕地定级质量图。
Arable land gradation, a further step of the finished agricultural classification, has a great significance to the evaluation of arable land quantity and its quality, as well as the protection and utilization of land resources. High resolution QuickBird images are used and a novel strategy different from the traditional gradation of farmland is proposed by adopting high-pass filtering fusion method in spatial domain and geometric correction. Accordingly, object interpretation symbols and screen vectorization classification are established to make a real time land utilization map. The effect of large-scale mapping is improved and a map of arable land quality gradation is made at a scale of 1 ：2 000.
出处
《水土保持通报》
CSCD
北大核心
2007年第5期53-57,共5页
Bulletin of Soil and Water Conservation
