利用遥感数据排序特征制作土壤侵蚀图的研究

A STUDY ON THE SOIL EROSION MAPPING USING ORDERING CHARACTERISTIC OF REMOTE SENSING DATA

本文介绍了土壤侵蚀类型的CCT排序特征,提出了利用该特征制作土壤侵蚀图的原理和方法。经实验,获得了实验区的土壤侵蚀图和各类面积数,与常规调查结果基本一致。讨论了该法确保制图精度的各项措施,分析了成本费用,得出该法具有制图精度高和成本费用低的优点,有着广为应用的前景。

The ordering characteristics of soil erosion class, in particular those in 5 and 7 band of LANDSAT MSS CCT image, were introduced, and the principle and operational procedure for soil erosion mapping by it were presented in this paper. The soil erosion map and the area of each class in the experimental region obtained by using the method were in good agreement with the results by conventional investigation, The main measures to ensure high accuracy and the low cost for the method are discussed, and it is considered that this method will have great prospect in practice and research on soil erosion mapping.