西安市土地利用效益与城镇化耦合协调关系

Coupling Coordination Between Land Use Benefits and Urbanization in Xi′an City

为了阐释西安市土地利用效益与城镇化的耦合协调机理,明确二者的耦合协调程度,通过构建土地利用效益与城镇化水平指标体系和评价模型,计算了土地利用效益与城镇化水平评价指数、耦合协调度以及灰色关联度,剖析了二者的耦合协调发展关系和相互影响程度。结果表明:(1)2005-2015年西安市土地利用效益指数、城镇化指数以及综合评价指数逐年增长,两者在发展中相互促进,土地利用效益指数增长速度略大于城镇化指数,经济效益在土地利用效益中占据主导地位,经济、生态城镇化指数在城镇化水平指数中占比最大;(2)土地利用效益与城镇化的耦合协调度逐年递增,耦合协调阶段由失调衰退阶段最终转变为协调发展阶段,耦合协调状态由濒临失调转变为优质协调,两者的协调发展关系更加紧密;(3)土地利用效益与城镇化水平之间存在相互影响的关系,经济效益以及生态效益对城镇化水平的影响程度较高,经济城镇化、生态城镇化、社会城镇化以及教育城镇化对土地利用效益均有较为重要的影响;(4)土地利用效益与城镇化是两个相互促进、紧密相关的协调发展系统,在推动经济社会不断发展的同时,也要加强生态环境保护以及合理规划城市用地,实现土地利用效益与城镇化协调发展。

In order to explain the coupling and coordination mechanism of land use benefits and urbanization in Xi′an City,and to clarify the degree of coupling and coordination between the two,we calculated the evaluation index of land use benefit and urbanization level,the coupling coordination degree and gray correlation degree,and analyzed the coordinating and developing relationship and the interaction degree by constructing an index system and evaluation model of land use benefit and urbanization level.The results showed that:(1)land use benefit index,urbanization index and comprehensive evaluation index in Xi′an City were increasing year by year from 2005 to 2015;the two promoted each other in development process,and the land use benefit index grew slightly faster than the urbanization index;(2)the coupling and coordination degree between land use benefit and urbanization was increasing year by year,and the coupling and coordination phase was finally transformed from the imbalanced and declining phase to the coordinated development phase;the coupling coordination state changed from near imbalance to great coordination,and the coordinated development of the two was closer;(3)there was a mutual influence between land use benefits and urbanization level;economic benefits and ecological benefits had a higher impact on urbanization level;economic,ecological,social and educational urbanization had important impacts on land use benefits;(4)land use benefits and urbanization were two mutually beneficial and closely related coordinated development systems;promoting the continuous development of the economy,society,and ecological environmental protection should be strengthened and urban land use should be rationally planned to achieve coordinated development of land use benefits and urbanization.