鄱阳湖生态经济区土地资源集约利用水平及其影响因素分析

An Analysis of the Intensive Utilization Level of Regional Land Resources and the Affecting Factors in Poyang Lake Eco-economic Zone

本文选取并利用农业土地利用和城镇土地利用两方面的指标,合成区域土地资源集约利用指数,以鄱阳湖生态经济区32个分区单元的土地资源利用数据为基础,进行无量纲化处理,依此对区域内土地资源集约利用水平进行综合评价,并利用回归模型实证分析影响土地集约利用水平的因素。研究结果表明,2012年鄱阳湖生态经济区土地资源集约利用程度综合排名从高至低前三位依次为:南昌县、新建区、都昌县。在影响鄱阳湖生态经济区土地资源集约利用水平的因素中,"地区生产总值""第二产业贡献率""森林覆盖率"等因素对鄱阳湖生态经济区土地资源集约利用具有显著的正向作用,"人均绿地面积"对其具有明显的抑制作用。

This article synthesizes the indicators of agricultural and urban land utilization into the index of regional land intensive utilization,comprehensively evaluates the intensive utilization level after non-dimensionally processing the data of land resources utilization in 32 subzones from Poyang Lake Eco-economic Zone, and makes an empirical analysis of the influential factors based on the regression model. The results show that in 2012 counties that ranked high for their degree of intensive land utilization with descending order were Nanchang, Xinjian,Duchang, Jiujiang and so on. Among the factors that impact the degree of intensive land utilization in Poyang Lake Eco-economic Zone, 'Gross Regional Product', 'contribution rate of the secondary industry' and 'forest coverage' are obviously three positive elements while 'green area per capita'is a negative one.