farmland grading exponent 农用地等指数
Farmland grading database 农用地分等数据库
farmland grading information system 农用地分等信息系统
farmland s grading 农地分等
grading of farmland 农地定级
The application of farmland grading results in the basic farmland protection.
农用地分等成果在基本农田保护中的应用方面。
A dynamic calculation model that can reflect the aggregate character of farmland grading is also set up in the paper.
建立了更能体现定级因素、因子总体特征的总分值动态计算模型，使定级结果更加符合农用土地的实际情况。
Based on the achievements of farmland grading, predication method of different grading protection area of cultivated land is advanced.
以农用分等成果为基础，探讨了不同等级耕地保有量预测方法。
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