1:100万土壤-土地图数据库及土壤退化信息解译

改进世界土壤和土地资源的制图，发展一个能够传递精确的、有用的和实时的土壤-土地资源信息系统，有利于土地资源管理人员去制订规划和作出任何决策。标准化的信息也便于国际与国内的信息传递与交换。本研究工作以世界1:100万土壤-土地数字化数据库工作手册为准则^[1,2]。分四个阶段进行；1.土壤-土地图的编制；2.地图数字化和地图文件的建立；3.土壤-土地数字化数据的建立；4.土壤-土地图及数据库信息的介评。

1:1 MILLION SOILS AND TERRAIN DIGITAL DATABASE AND THE INTERPRETATION OF SOIL DEGRADATION

Throughout the world, especially in developing countrtes land resouree managers are constrained in their planning and decision rn}king because of a critical lack of information about their soil and terrain resources. In cases where scientific data does exist, its effeetive exchange and transfer is also constrained by lack of standardization in describing and recording important resource information, so it is favouralble for decision-makers and policy-makers to improve mapping and monitoring of world soils and terrain resources and develop an information system of delivery of accurate, useful, and timely information about soils&terrain resourees. Also, the standardization of information is conviene for its delivery and exchange.