云南省农用地分等成果在基本农田保护中的应用研究*

 基本农田保护是指质量和数量的双重保护。目前，基本农田仅定量地划定，而无科学的质量评价方法。农用地分等是基于土地的自然特性辅以科学的计算方法并得出农用地的自然质量等的一项技术。文中以农用地自然质量等作为依据，分析了云南省耕地的质量分布规律，并对基本农田的数量确定和范围划定进行研究。自然质量等在基本农田保护中的应用弥补了对耕地的质量评价，有利于实现基本农田保护的数量指标和质量要求。

Research on Applications of Agricultural Land Classification Production in Protection of Prime Farmland in Yunnan Province

The prime farmland protecting work is double protection, which contains both quality and quantity. The demarcation of prime farmland protection only by quantity, but have no scientific method for quality appraisement. The agricultural land classification which based on land physical characters with scientific calculation methods is a technique that can work out the physical land quality grade. Based on it, the distributing of farmland quality was analyzed. Further more, the quality and planning prime farmland were researched in the paper. The application of physical land quality grade in the protection of prime farmland can supply quality appraisement to the farmland. It is propitious to realize the protection of prime farmland in quality and quantity.