On the basis of the studies of the gathering of farmland classification in Hubei province work, this paper describes the method for the thematic elements generalization in farmland classification map under the Arc/Info environment.

Planning method of the prime farmland protection zone based on farmland utilization grade;

Application of GIS in Farmland Grading;

The design and application in farmland grading information system based on internet;

The farmland grading information sharing system based on the WebGIS technique;

The results in the second survey of the land on the agricultural land classification;

Research on agricultural land classification and its formation mechanisms in Shanghai

Research on applications of agricultural land classification in division of prime farmland

Spatial planning method for the basic farmland protection based on the farmland classification;

Study on farmland classification based on GIS——Taking Langqi Economic Region in Fuzhou as example;

Research on design and implementation method of Guangdong farmland classification and gathering management system based on component GIS;

The purpose of this study is to explore technical problems and solutions o f agricultural land gradation in Guangdong Province,which will pr ovide enlightenment for the regional agricultural land gradation.

This paper introduces quality index,uses agricultural land gradation results to forecast cultivated land requirement.