Trade-Off Between Structure and Efficiency of Land Use in County Scale
利用遗传变异模型模拟有机进化机制，通过反复迭代得到区域土地利用结构的非劣解集，揭示了土地利用结构与效率之间的复杂权衡关系，为协调土地利用目标与政府决策提供参考。
With using land utilization types as the model variable and regarding regional total area,economy as well as social development situation as constraint conditions,this essay makes use of the hereditary variation model to simulate the mechanism of organic evolution and consequently obtain the non-inferior set of a collection of regional land use structures by repeatedly iteration.The research results indicate that there are numerous trade-offs among land ecosystems;the complex relations between land use structure and land efficiency in society,economy,ecology and so on interact as well as give play to different functions and effects in land ecosystem;stakeholders can trade off among society,economy,development goals and the ability to maintain the operation of ecosystem according to different current demand;with the achievement of polyoptimization of social,economic and ecological efficiency,an excellent decision-making mechanism is to be set up to coordinate the goal of land use and government's decision of land use.