关天经济区经济增长与城市土地生态安全评价研究

Assessment and Research of Economic Growth in Ecological Zones and Urban Land Ecological Safety

以关天经济区为例,基于EKC模型,借助SPSS、Excel等相关软件在数据标准化的基础上选用多种函数拟合分析经济增长与城市土地生态安全的相关关系。研究表明:经济增长与土地生态安全相关关系类型多样,呈现"U"型、倒"U"型、同步等关系类型;二次、三次函数拟合效果较好,在二次多项式拟合中西安、商洛两地先减后增,出现极小值拐点,其他城市均呈现增长趋势;三次多项式则出现先减后增、先增后减再增和增长3种趋势。最后,论文从技术进步、产业结构调整及人们思想意识的改变等方面阐述了变化的原因,以期为土地资源管理提供相应理论依据。

In this article,the fitting analysis of the correlation between economic growth and urban land ecological safety was made by taking Guantian Economic Zone,based on EKC model,and by using relevant software such as SPSS,Excel,etc. to select multiple types of functions on the basis of data standardization. The result indicated that the correlation was various in type,including ＂U＂type,upside-down ＂U＂type,synchronous relationship; that the fitting effect of quadratic or cubic functions was better,with the correlation in both cities of Xi’an and Shangluo first decreased and then increased in fitting by using quadratic polynomial and with the correlation in other cities tending to increase; and that use of cubic polynomial produced three conditions of the correlation： first decreased and then increased,first increased and then decreased,and increased. In the end,the article elaborated the reasons for the change from technology improvement,industrial structure adjustment,people thinking and awareness change for the purpose of providing corresponding theoretical bases for land resource management.