城镇建设用地集约与生态利用协同机理研究

Synergistic mechanism on intensive and ecological utilization of urban construction land

城镇建设用地的集约利用和生态利用是两种不同目标趋向的利用方式,二者都共存于同一城镇空间内,共生于同一宗地中,有机协同和合理配置十分重要.以城市生态学、马斯洛需要层次理论、土地经济学的边际报酬递减规律和帕累托最优原理为基础,剖析城镇建设用地集约利用和生态利用的相互作用机制,揭示其协同利用的内在机理.研究表明:提高建设用地集约利用水平有利于增加生态利用空间,而提高生态利用水平也有利于提升集约利用度,二者在土地边际经济收益和边际生态效用的帕累托最优点处达到最佳均衡.因此,城镇建设用地的开发要均衡集约利用和生态利用.

The intensive and the ecological utilization of urban construction land are land use patterns which have different goal orientations.They coexist not only in the same town space but also in the same parcel,it is very important,therefore,to properly configure them.Based on the urban ecology theory,Maslow＇s hierarchical theory of needs,the appended bonus degressive rule and the theory of the optimal Pareto principle,the interaction mechanism between the intensive utilization and the ecological utilization and their synergistic mechanism are analyzed in this paper.The results show that improving the level of intensive utilization is beneficial to increase the space of land ecouse and vice versa,and they achieve the best balance in the Pareto optimal point of marginal land economic benefits and marginal land ecological benefits.Therefore,it is necessary to balance the intensive use and the eco-use in the urban construction land development.