2008•Diyu yanjiu yu kaifaRequires access

Study on Predication Method of Different Grading Protection Area of Cultivated Land Based on the Achievements of Farmland Grading——A Case of Huaian City in Jiangsu Province

Yongzhang Wang

Abstract

Based on the achievements of farmland grading,predication method of different grading protection area of cultivated land is advanced.Firstly,the mathematical model between utilization index and the yield of standard food is established,then theoretic standard food yield of different grading is accounted.At last,Based on linear programming model,optimal decision of different grading protection area of cultivated land is advanced.Empirical study of Huaian City in Jiangsu Province also is carried through,and its result indicates: the method can confirm reasonable protection scheme.The paper offers theoretical foundation of cultivated land quality protection in land planning.

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Key concepts: Grading (engineering), Cultivated land, Agricultural engineering, Agriculture, Geography, Civil engineering, Engineering, Archaeology