河北省新型城镇化与土地生态安全耦合协调分析

Coupling analysis of new urbanization and land ecological security in Hebei Province

以河北省为研究区域,以新型城镇化与土地生态安全耦合协调度为研究对象,运用耦合协调发展模型和空间自相关等分析方法测算了2005-2015年间河北省新型城镇化与土地生态安全耦合协调度,探究其空间集聚特征。研究结果表明:(1)河北各城市新型城镇化与土地生态安全耦合协调水平不存在耦合失调的情况,区域间耦合协调发展水平存在较大差异,大部分主要处于初级协调发展类型,仅有唐山、石家庄在2015年达到了良好协调发展类型。河北省新型城镇化与土地生态安全耦合协调度存在显著的空间正相关。(2)空间集聚类型上,绝大多数城市属于不显著类型区,高-高类型区、低-低类型区涉及的城市数量少。2005年仅有廊坊市处于高-高类型区、张家口市处于低-低类型区;2010年无城市处于高-高类型区,承德市、邢台市处于低-低类型区;2015年仅有秦皇岛市处于高-高类型区、无城市处于低-低类型区。研究可为其他地区推进城市化进程与提高土地生态安全水平,促进二者协调发展提供一定理论依据。

The research took the Hebei Province as the research area,taking the coupling coordination degree of new urbanization and land ecological security as the research object,using the coupling and coordination development model and spatial auto-correlation analysis methods to calculate the coupling coordination degree of new urbanization and land ecological security in Hebei Province from 2005 to 2015,and to explore its spatial agglomeration characteristics.The research results showed that:(1)There was no coupling imbalance in the coupling and coordination level of new urbanization and land ecological security in Hebei cities.There were large differences in the level of coupling and coordinated development between regions.Most of them were mainly in the primary coordinated development type,only Tangshan,Shijiazhuang reached a good coordinated development type in 2015.There was a significant positive spatial auto-correlation in the coupling coordination degree between new urbanization and land ecological security in Hebei Province.(2)In terms of spatial agglomeration types,most cities belonged to insignificant type areas,and the number of cities involved in high-high type areas and low-low type areas was small.In 2005,only Langfang City was in the high-high type area and Zhangjiakou City was in the low-low type area;In 2010,no city was in the high-high type area,Chengde City and Xingtai City were in the low-low type area;In 2015 only Qinhuangdao city was in the high-high type area,and no city was in the low-low type area.It could provide a certain theoretical basis for promoting the urbanization process and improving the level of land ecological security in other regions,and promoting the coordinated development of the two.