摘要
本研究选取黄土高原典型丘陵沟壑区——陕西省米脂县为试验区,用TM磁带、TM假彩色合成影像、SPOT多光谱影像和彩色红外航空像片同时对试区进行土地利用现状分类与制图的比较研究。通过对土地利用现状分类系统、TM图像计算机增强处理与自动分类、TM最佳波段组合、三种影像的目视判读与制图、以及遥感信息源的综合评价等多方面的试验研究,为遥感技术在黄土高原1:5万土地利用现状调查制图中的应用提供了一套技术数据及可行的方法。
Experiments were carried out on a typic Loess Plateau area about 1000 km2 in north Shaanxi province. The objective of this study was to evaluate the suitabilities of TM, SPOT imagery and color infrared aerial photoes to Land use survey at a scale of 1:50000, and show how to use these data. In this paper, a land use classification system was established by concerning the remote sensing abilities as well as the geographical feature. The computer aided image enhancements and classification of TM CCT's were discussed. A combined method of divergence and visual analysis was inducted to choose the best combination of three TM bands. The interpretation keys to the main land use classes of the three used images in the study were obtained by the analysis of the landforms, spectrum and phenology. A fuzzy mathematic method was developed to quantitatively judge the application abilities of the remote sensing data used in this study. After those experiments have been done, the paper presents some valuable conclusions and provides the best practicable methods of using remote sensing data to the land use survey at the scale of 1:50000 on the loess plateau.
出处
《环境遥感》
CSCD
1990年第2期83-93,共11页
关键词
土地
利用
黄土
高原
遥感
Loess Plateau Land Use RRemote Sensing
