Study On Agricultural Land Grading Of Fufeng County Based On GIS

Establishing high-efficient, scientific, unified, standardized model of land resources management is imperative in the land management . It is an inevitable trend to apply GIS technology to the land management. As a technical work, land grading which concerned about nature, socio-economic factors and needed kinds of mathematical models, calculation methods, is an important part for land-use management. Traditional land appraisal methods has been difficult to adapt to this work. However, analysis function of GIS spatial data processing afford agricultural land grading technical support. Based on GIS technology, the paper using softwares of MapGIS and ArcView researched on Fufeng agricultural land grading. It thought that GIS can play important role in grading unit classification, evaluation acquirement, grading index calculation, area counting, data management, results show, and so on, which improved efficience of land grading processing, reduced duplicated work, enhanced the accuracy of the grading results. GIS provides a scienticfic basis for grasping the quality and distribution of agricultural land, achieving changes of land resources management from quantiti-based management to the quantity, quality and ecological management coordinatedly.Firstly, the paper outlined agricultural land grading, GIS relative concepts and the basic characteristics, described domestic and abroad develop situation, gave prominence to necessary and feasibility of agricultural land grading by means of GIS; then, it analyzed technical route and indicators system of agricultural land grading. On the basis of which, it provided design proposal and concrete steps of establishing agricultural land grading database, assosiated with relative grading rules and the real situation of Fufeng land-use database; aimed at different grading factors and indicators, the paper analysed the ways of evaluation of each factors and indicators by GIS spatial analysis technology in detail. Lastly, grading results are tested and analyzed, showed in flexible and diversal way as well.