北方农牧交错带土地利用结构的最优规划

The Optimal Planning of Land Use in the Northern Farming-Pastural Area

运用线性规划、层次分析和模糊数学的隶属函数对北方农牧交错带土地利用结构的不同经济效益、投入水平和水土流失为目标的函数进行分权计算与综合评价,最后再运用模糊数学的隶属函数,得出几种评价中最可行的方案,优化方案为土地利用由2005年的农、林和草面积比例54∶10∶36调整为30∶13∶57。表8,参7。

The membership function of linear programming,arrangement analysis and fuzzy mathematics were used for making weighted calculating and comprehensive evaluation in this paper. The author regards the different economic benefit, input level, land soil and water erosion as the objective function.Tne land utilization is suggested to be adjusted by means of subordinate function.Tne optimal project of the proportion of crop land,woodland and grassland is changed from 54：10：36 in 2005 into 30： 13：57.