耕地保护、建设用地集约利用与城镇化耦合协调性研究

论文基于耕地保护、建设用地集约利用和城镇化的交互耦合机制,以陕西省为例,通过构建耦合协调模型,分别从时空两个维度对其耕地保护、建设用地集约利用和城镇化的耦合协调关系进行研究。结果表明：1）从时间序列上看,2005-2014年陕西省耕地保护、建设用地集约利用和城镇化整体耦合协调度呈上升趋势,由中度耦合协调发展为高度耦合协调（0.549~0.800）。耦合度方面,以2009年为界,耕地保护、建设用地集约利用和城镇化两两及整体耦合度呈先升后降的倒“U”型;协调指数方面,以2007和2009年为拐点分为3个变化阶段,其中耕地保护和城镇化协调指数T₂、建设用地集约利用和城镇化协调指数T₃以及三系统总协调指数T总体呈上升趋势,而耕地保护和建设用地集约利用协调指数T₁下降幅度大于上升幅度。2）从空间序列上看,2014年陕西省耕地保护、建设用地集约利用和城镇化耦合协调呈现“西北高、东南低”的特征。

Research on Coupling Coordination among Cultivated Land Protection,Construction Land Intensive Use and Urbanization

Coordinated development among cultivated land protection, constrcution land intensive use and urbanization can promote synergies among “food”, “construction” and “development”, and is conductive to China’s new urbanization construction and social sustainable development. Based on the interactive coupling mechanisms among cultivated land protection, construction land intensive use and urbanization, taking Shaanxi Province and its ten municipalities as example, this paper analyzed the temporal and spatial differences of coupling coordination among cultivated land protection, construction land intensive use and urbanization. Results indicate that: 1) Temporally, the overall coupling coordination degree among cultivated land protection, construction land intensive use and urbanization in Shaanxi Province during 2005-2014 is on the rise, from moderate coupling coordination to highly coupling coordination (0.549-0.800). Regarding coupling degree, any two as well as the overall coupling degree among cultivated land protection, construction land intensive use and urbanization in Shaanxi Province during 2005-2014 shows an inversed “U” shape, with 2009 as the turning point. The coupling degree between cultivated land protection and construction land intensive use fluctuated in the high value interval (0.9-1.0). As for coordination index, its variation is divided into three stages during 2005-2014, with 2007 and 2009 as the turning points, respectively. The coordination index between cultivated land protection and urbanization (T₂), the coordination index between construction land intensive use and urbanization (T₃), and the overall coordination index (T) show an overall upward trend, while the decline of the coordination index between cultivated land protection and construction land intensive use (T₁) is greater than the rise. 2) Spatially, the coupling coordination degree among cultivated land protection, construction land intensive use and urbanization in Shaanxi Province in 2014 was high in northwest and low in southeast. Ankang, Hanzhong, Shangluo and Weinan municipalities are located in the moderate coupling coordination area (0.40-0.59); Xianyang, Baoji, Tongchuan, Yulin and Yan’an municipalities are situated in the high coupling coordination area (0.60-0.79); while Xi’an municipality, the capital of Shaanxi Province, is in the excellent coupling coordination area (0.80-0.10). As a whole, six municipalities are located in the high and excellent coupling coordination area (0.60-1.0), and only one municipality falls into the low coupling coordination area (0.0-0.39). It indicates that the overall coupling coordination degree among cultivated land protection, construction land intensive use and urbanization in Shaanxi Province is good. To achieve the coupling coordination among cultivated land protection, construction land intensive use and urbanization in Shaanxi Province, the paper puts forward three suggestons: increasing the overall level of cultivated land protection in Shaanxi Province, improving construction land intensive use in Shaanxi Province, and formulating social and economic develeopment policies according to local conditions.