摘要
分析了研究区自然、生态和社会经济条件,用线性规划法对研究区内农、林、牧土地利用结构进行优化,以经济收入最大作为目标函数,其它要求在约束条件中加以限制。优化结果中农、林、牧和其它用地比例为33∶25∶28∶14;同时,对优化方案进行可行性分析,认为该优化方案在资源、经济、生态和社会适宜性方面都是可行的;土地结构优化后该县的经济收入能增加2095.45万元/a,水土流失量能减少46.2t/(km2·a)。
On the basis of analyzing the natural, ecological and social and economic conditions of the region studied, the land use structure of agricultural land, forest land and pasture land was optimized, using linear programming method, in which maximum economic benefit was taken as the target function and the other requirements were limited in the restriction conditions. The optimized proportion of agricultural land, forest land, pasture land and other land was 33 ∶25 ∶28 ∶14. A feasible analysis of the optimized program showed that this it is feasible in resources, economy, ecology and social suitability. The annual economic income of the county may increase by (2 095.45) million yuan (RMB) and annual soil erosion may be reduced by 46.2 t /(km^2·a).
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2004年第3期344-347,351,共5页
Journal of Southwest Agricultural University
基金
国家十五攻关资助项目(2001BA502B0403)
关键词
线性规划
生态农业开发
土地利用结构
linear programming
eco-agricultural development
land use structure
