乡村三生功能耦合协调时空格局演化及影响因素分析——以河南省县域为例

Spatial-Temporal Pattern Evolution and Influencing Factors of Rural Production-Living-Ecological Function Coupling Coordination:A Case Study of Counties in Henan Province

伴随城市扩张对乡村地域的不断渗透,乡村功能发生显著变化,提升乡村三生功能的耦合协调程度对村镇空间格局优化、乡村转型发展和乡村振兴战略实施具有重要意义.以河南省为例,结合国土空间规划“三生空间”理论,定量测算2010、2015年和2019年河南省县域单元的乡村三生功能.采用耦合协调度模型分析三生功能的相互作用和时空演化特征,并且引入地理探测器模型分析耦合协调的影响因素.结果表明:(1)河南省乡村“三生”功能值增长态势显著,生产和生活功能高值区集聚在交通发达区域,生态功能高值区围绕西、北、南部山区分布;(2) 2010-2019年乡村三生功能耦合协调度整体上升,经历4个阶段,呈现“西北高东南低”的空间分布特征;(3)乡村三生功能两两间耦合协调度差异性较大,乡村“生活-生态”功能间协调作用滞后现象较为明显.影响河南省乡村三生功能耦合的驱动因子是变化的,经济要素持续主导,非农生产和生态资源影响力逐步提升.

With the continuous penetration of urban expansion into rural areas,the rural functions have undergone significant changes.Improving the coupling and coordination degree of rural"production,living and ecology"functions is of great significance to the optimization of the spatial pattern of villages and towns,rural transformation and development and the implementation of Rural Revitalization Strategy.Taking Henan Province as an example,combined with the"production,living and ecology"space terminology of land planning,this paper quantitatively calculated the rural production,living and ecology functions of county units in 2010,2015 and 2019.The coupling coordination degree model was used to analyze the interaction and spatiotemporal evolution characteristics of the production,living and ecology functions.The geographic detector model was introduced to analyze the influencing factors of coupling coordination.The results show that:①The functional value of rural"production,living and ecology"in Henan Province has increased significantly.High-value areas of production and living functions are concentrated in areas with developed transportation,and the high-value areas of ecological functions are distributed around the mountainous areas in the west,north and south;②From 2010 to 2019,the coupling and coordination degree of the rural"production,living and ecology"function increased as a whole,and through four stages,it presents the spatial distribution characteristics of"high in the northwest and low in the southeast";③There are great differences in the degree of coupling and coordination between the two functions of rural"production,living and ecology",and the lag phenomenon of coordination between rural"living-ecological"functions is more obvious.The driving factors affecting the functional coupling of rural production,living and ecology function in Henan Province are variable,economic factors continue to dominate,and the influence of non-agricultural production and ecological resources has gradually increased.