基于Model Builder模块的青冈县农用地分等定级研究

Research on Farmland Grading Based on Model Builder Module in Qinggang County of Heilongjiang Province

耕地的质量和数量是保证粮食安全的前提条件,作为基础性工作的农用地分等定级工作也成为众多土地资源管理工作的重中之重。为了使影响因素多、指标繁杂、计算量大的评价工作变得更加自动化,以ArcGIS软件为技术支撑,利用土壤图等基础图件资料作为辅助,采用多因子综合评判法来建立青冈县农用地分等定级评价体系和数据库,并对农用地分等定级工作一键化处理的方法进行了探讨,所得结果与人工手动计算结果一致,进而减少人工作业的失误率,提高工作质量和效率。

The quality and quantity of cultivated land are the prerequisite to ensure food security. Therefore,as a basic work, farmland grading has become the first of most important work among land resources management. It is supported by ArcGIS. the use of soil maps and other basic information as an auxiliary, multi-factor comprehensive evaluation method to create farmland grading evaluation system and database in Qinggang county while the one-button work of th; farmland grading processing methods were explored, the evaluation work with many influencing factors,indicators of complex and intensive computation had been carried on automatically. The resuits were consistent with the original calculations manually. It reduced the error rate of manual operation and improved the quality and cfficieney of the work.