摘要： 对试验区卫星磁带进行单波段、聚类、增强、比值、消减等电算机光谱数字处理，并打印成各类光谱数字字符图，筛选与试区地貌、土壤信息相关性强的字符图，经平面几何校正并着色成“彩色字符平面图”。按照准备工作、路线踏勘、室内预判、样区详查建立解译标志、室内详判勾绘图斑、野外核实、转绘成图量算面积等调查、解译、制图步骤，完成试验区土壤解译制图。试验结果证明，卫星磁带字符图用于土壤调查和制图，能够满足中比例尺土壤调查制图的规范要求，具有速度快、精度高、成本低的优点。可用于县级中比例尺土壤调查与制图，为今后土壤资源动态监测提供基础数字化处理图件。

关键词: 卫星磁带(CCT), 字符图, 土壤调查

Abstract: To process the Landsat CCT of the experimental area in the respect of computer-spectrum-figure,such as mono-band,clustering,enhansement,ratio,decreasing,etc.;to print it into all kinds of spectrum-figure digital-image map;to select digial-image map which has close interrelation with the landform and soil information of the experimental area;with plane-geometric correction,to paint it into"Color Symbol Plane Map".According to the survey,interpretation and mapping steps of preparation,inside room pre-interpretation of route survey,detailed investigation in the experimental area to set up interpretation mark,to interprete inside to draw areas,to check in field,to transfer,to measure area etc.to complete the interpretation mapping of the soil in the experimental area.It is proved that it can satisfy the requirements of middle scale soil survey mapping to use Landsat CCT digital-image map in soil survey and mapping.It has the-advantage of quickness,higher precision and lower cost and can be used in county-level middle scale soil survey and mapping and provides of basic digitalized processing maps for the monitoring of soil resources.

Key words: Landsat CCT Digital-image map, Soil survey