基于卫星影像解译的华中地区自然景观分类与制图

CLASSIFICATION AND MAPPING OF THE NATURALLANDSCAPES OF THE HUA ZHONG(MIDLAND CHINA)REGION BASED ON INTERPRETATION OF SATELLITE IMAGERY

依据１：１５０万中国卫星影像图并参考有关专题图件资料，通过景观组成要素分析法和专题图件对比分析法，拟定了华中地区自然景观分类系统并编制了该区１：１５０万自然景观类型解译图。抽样检验表明，平均判对率达９０．５％。

The traditional classification and mapping of natural landscapes mostly depend on the method of a superimposition of boundaries of the elements consisting a natural landscape. In this paper,the way to make a classification and mapping of landscapes based on interpretation of satellite im- agery is explored taking the Hua Zhong(midland China)Region as an example. The principal data sOurces used in this study are the newlycompiled Satellite lmage Map of China at a scale of 1:1 500 000 and the relevant ancillary maps. Firstly,the photomorphic re- gions on the image were tentatively recognized by making an analysis of the elements constituting a landscape in conjunction with a comparisen between the satellite image and the ancillary maps. Secondly,single property regions or multiple property regions were delimitated in each photomor- phic region. Finaliy,all types of natural landscape were delineated in each single or multiple prop- erty region. Throtigh this procedure and using the classification scheme of natural landscapes,which was worked out on the principle of relatively homogeneity of image feature in each type of landscape and the principle of a combination of integrated analysis on the elements constituting landscape with an analysis on the predominant elements,all natural landscape types in the study area were interpretde and its map at a scale of 1:1 500 000 was compiled.Furthermore,the mapwas checked against the China’s Land Use Map at the same scale according to the random sam- pling strategy and using the rate of correct interpretation as the quota. The result shows that the rate on an average is as high as 90.5%,which has nearlv arrived at the anticipated accuracy of the interpetation.