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河北省土地面积近20万平方公里,属我国中等面积省汾。为了能及时满足省、地级土壤区划、农业规划对土壤图件资料的要求,我们应用1:50万黑白卫片、1(?)万假彩色合成卫片、部分的1:25万假彩色合成卫片,配合地面路线调查,对河北省土壤分布,土地资源利用现状进行了调绘,用较少人力、在较短的时间内,绘制出1:50万和1:25万的河北省土壤分布图(至土属一级)。经与已经完成大比例尺土壤详查,验收合格的三个县分的土壤图件的校核对比,我们用卫片的影象勾绘的土壤轮廓,与他们详查绘制的土壤图斑相当吻合。
Hebei Province, an area of nearly 200,000 square kilometers of land, is a medium-sized province Fen. In order to timely meet the provincial and prefecture-level soil zoning, agricultural planning requirements of the soil map data, we use 1: 500000 black and white tablets, 1 (?) Million fake color synthesis of health films, part of the 1: 250,000 false color Synthetic patches, with the ground route survey, the distribution of soil in Hebei Province, land use status of the transfer of the drawing, with less manpower, in a relatively short period of time, draw 1: 50000 and 1: 25000 Hebei Soil distribution (up to the soil level). Compared with the check of the soil maps of the three counties that have completed the detailed survey and acceptance of large-scale soils, the outline of the soils we paint with the patch images of the soil is in good agreement with the soil patch .