农用地分等关键技术的解决方法--以广东省为例

STUDY ON THE KEY TECHNOLOGY OF THE PROVINCIAL FARMLAND GRADING——A CASE FOR GUANGDONG PROVINCE

基于广东省农用地分等成果省级汇总工作实践,采用GIS辅助与自动化等方法,从部分关键参数和系数的获取,保持各级数据之间的等别不缺失,快速自动实现图层间图斑上下级关系索引,迅速实现自动制图综合等几个关键技术过程入手,对如何快速准确进行县、市、省三级农用地分等成果汇总的方法进行了探讨,为区域性农用地分等成果汇总提供了有益的借鉴。

In this paper, we discussed the technologies of semiautomatic cartography integration rapidly, acquiring the key parameter and coefficient, establishing the index of the map unit between different scale maps, keeping grade＇ s consistency of different level map. These methods were used in the case for Guangdong province and get a perfect result. It will provide the useful enlightening for the regional integration of farmland grading results.