风沙地区遥感图像分析及其对选线的意义

AN ANALYSIS OF REMOTE SENSING IMAGES OF BLOWN-SAND AREAS AND ITS SIGNIFICANCE IN LINE SELECTION

简要叙述了利用遥感图像进行沙丘研究的优越性,重点介绍了沙漠地区各种类型沙丘的影像特征,并以其形态特征分析为依据,对某些类型沙丘的成因提出了看法,同时指出遥感图像沙丘判释对线路选线的意义及风沙与铁路、公路选线的关系等。

This paper deals briefly with the advantages of applying remote sensing images to the study of dunes and emphatically describes the image characteristics of various types of dunes in deserts. Formation mechanisms of some kinds of dunes are tentatively put forward according to their morphological features on the remote sensing images. Some problems are also discussed such as the significance of the remote sensing interpretation of dunes in line selection and the relationship between blown sand and line selection for railway and highway construction.