黄土高原土地资源调查中几个问题的讨论

Approaches to Land Resurces Surveying of Loess Plateau

土地资源的基本特征是土地面积的有限性和土地生产能力的时空差异性。土地资源的数量、质量及其利用方式的短周期快速清查及其数据库的建立和定期更新是土地资源合理利用和科学管理的重要前提之一。本文综合运用科学实用的土地资源分类和分区、系统遥感影象和数据分析,多重系列的土地制图和数据库管理等先进技术方法,探索出一套实用化的土地资源快速清查方法。

It is essential feature of land resources that the area is limited and the productivity is varying in time and space.Land resources inventory short-peri- odically,database building and updating is the basical task and important prere- quisite of land optimum utilization and scientific management.In order to develop a rapid and praticable method,we integrated scientific and practical classification system,remotely sensed image analysis,multi-series mapping and database managment technology,and achieved satisfactory results in land survey of Loess Platueau.