论文部分内容阅读
近年来,利用卫星遥感图象目视解译编绘中比例尺土壤图的工作已取得了一定的进展,在工作程序、解译技术、编绘方法、精度验证、工效比较等方面已获得了一些可取的经验和结论。为了迅速准确地摸清黄绵土的分布规律,合理改良利用黄绵土资源,我们利用卫星图象,选用适宜的方法,编绘了1∶20万陕北地区黄绵土土壤类型图,对陕北黄土高原的黄绵土分布规律进行了调查与制图,并在利用地貌—土壤相关判读分析方法上作出了初步的尝试。一、区域概况陕北位于我国黄土高原的中部,范围在北纬35°20′—39°35′,东径107°15′—111°15′,
In recent years, some progress has been made in using the remote sensing images of satellite to visually interpret the scale soil map in compilation and drawing. Some progress has been made in working procedures, interpretation techniques, compilation methods, accuracy verification, and comparison of ergonomics Desirable experience and conclusions. In order to find the distribution law of loess soils rapidly and accurately and to improve loessial loess resources reasonably and accurately, we use the satellite imagery to select suitable soil types map of 1, 200,000 loessial soil in North Shaanxi Province, Distribution and distribution of law were investigated and mapping, and in the use of landform - soil correlation interpretation analysis made a preliminary attempt. I. Overview of the Region Northern Shaanxi is located in the middle of the Loess Plateau of China with a range of latitude 35 ° 20’-39 ° 35 ’and an east path of 107 ° 15’-111 ° 15’