GIS based soil information system (SIS) is very important for assessment of the capacity of land production, the status, rates of soil degradation and global change studies.

地理信息系统(GIS)支持下的土壤信息系统(SIS)在评价土地生产能力、土地退化的现状、速率和风险以及全球变化研究中具有重要意义。

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It brings forward three terms which should be contented for the scanned vectorization production, and studies the algorithms for land scanning check based on location relation.

提出了矢量化成果应满足的三个条件，对基于位置关系的地块矢量化成果检核算法进行了研究。

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This article, taking Haikou County as an example, based on the second national land investigation project, studies the method of countryside land-use investigation under the support of 3s technique.

本文以第二次全国土地调查项目为支撑，以海口市为例，对“3s”技术支持下的农村土地利用调查进行了研究。

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