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作者在学习国内外卫片影象目视土壤解译与制图技术经验的基础上,发挥卫片影象具有宏观性强、信息丰富和示性形象等优点;利用地质、地形、植被(或农业利用)等已有环境因素资料,尽可能地克服卫片影象的弱点,运用土壤地理学专业知识去剖析卫片影象的综合特征,从中获取土壤信息,勾绘土壤预判图。经过五年的研究结果表明,采用假彩色卫片影象土壤目视综合解译制图法的土壤解译率一般在95％以上,南方平原农区也可达75％以上;可判图斑的准确率达95—100％;土壤制图的重复性高,一般在75％以上;与土壤普查成果图对照检查,土壤分类标准相同的图斑吻合率达到80％以上,并且还可提高普查粗放地区的成图质量。所以,本法可供作县级土壤普查成果图的检查和在地区、省级的拼接汇总中应用,而且还为更新地区、省级和全国土壤图,以及编制各类专用土壤图开拓了一条快速、经济和优质图件的新途径,值得推广。
On the basis of learning the experience of visual interpretation and mapping technology of satellite imagery at home and abroad, the author gives full play to the advantages of macro image, rich information and demonstrative image of satellite imagery. Utilizing the advantages of geology, topography, vegetation (or agriculture Use) and other existing environmental factors, as far as possible to overcome the weakness of the satellite image, the use of soil geography expertise to analyze the comprehensive characteristics of satellite imagery, access to soil information, drawing soil predictions map. After five years of research, the result shows that the rate of soil interpretation using visual synthetic interpretation of false color satellite imagery is more than 95%, and that in the southern plain can reach more than 75% Accuracy of 95-100%; soil mapping repeatability is high, generally more than 75%; with the soil survey results check, the same soil classification standards of the map matching rate of 80% or more, and can also improve the census extensive area The quality of the map. Therefore, this Law can be used for the examination of map of soil survey at county level and its application in the splicing of districts and provinces. It also opens up a map for updating the soil map of regions, provinces and the whole country and compiling various types of soil maps New, fast, economical and quality map is worth promoting.