摘要
文章以长株潭城市群新型农业经营主体为研究对象,运用核密度、地理探测器、时空地理加权回归等方法,以2017、2020、2023年为时间节点分析了长株潭城市群新主体时空格局演变并解析其影响因素,最后探讨其空间优化对策。结果显示,1)长株潭城市群新主体总量呈上升趋势,增速先增后降,具有阶段性特征;类型结构由龙头企业为主转变为以家庭农场为主,产业类型结构由加工类为主转变为以种植类与加工类为主。2)长株潭城市群新主体呈显著集聚且时序上集聚度呈提升趋势,空间上城市群北部集聚度显著高于南部。集聚格局经历了由“两主多副”向“三主三副”再向“两主三副”的演变。主、副核心均分布于北部都市圈核心区及边缘区,集聚空间与城市群圈层结构存在一定的相关性。3)基于产业类型划分的5大类新主体空间格局各异,但均呈显著集聚且主核心相似。4)农业特色与创新、农业现代化水平是城市群新主体空间分布的核心影响因素,各因素的驱动作用存在显著的时空异质性。加工类新主体与其他类型新主体空间格局的主要影响因素存在一定差异。5)基于整体性思维与差异化施策,针对长株潭城市群整体以及城市群新主体核心区、新主体核心边缘区及南部远郊县区各圈层提出了促进新型农业经营主体发展的对策建议。
This study takes the new entities in the Chang-Zhu-Tan Urban Agglomeration as the research subject.Methods such as kernel density,along with geographical detector and Geographically and Temporally Weighted Regression(GTWR),are employed to analyze the evolution of the spatiotemporal pattern of new entities in the urban agglomeration at the time nodes of 2017,2020,and 2023 as well as its influencing factors and propose spatial optimization strategies.Results show the following:(1)The total number of new entities in the urban agglomeration shows an upward trend,with a growth rate that first increases and then decreases,exhibiting a phased characteristic;the type structure has shifted from being dominated by leading enterprises to being dominated by family farms,and the industrial type structure has shifted from being dominated by processing to being dominated by planting and processing.(2)New entities in the urban agglomeration are significantly clustered,and the degree of clustering has shown an increasing trend over time,with the clustering degree in the northern part of the urban agglomeration being significantly higher than that in the southern part.The clustering pattern has evolved from"two main and multiple secondary"to"three main and three secondary"and then"two main and three secondary."Both the main and secondary cores are distributed in the core and edge areas of the northern metropolitan circle,and there is a certain correlation between the clustering space and the circle-layer structure of the urban agglomeration.(3)The spatial patterns of the five major categories of new operators,based on industrial type,are different;however,they all show significant clustering with similar main cores.(4)Agricultural characteristics and innovation and the level of agricultural modernization are the core factors that influence the spatial distribution of new entities in the urban agglomeration.The main factors influencing the spatial patterns of new processing-type entities and other types of new entities show certain differences.(5)Based on holistic thinking and differentiated strategies,countermeasures and suggestions for promoting the development of new type of agricultural operating entities are proposed for the overall urban agglomeration as well as for each circle layer of the core area of new entities in the urban agglomeration,the core edge area of new operators,and the southern remote suburban counties.
作者
唐承丽
杨京伟
刘彬
周国华
Tang Chengli;Yang Jingwei;Liu Bin;Zhou Guohu(Hunan Normal University School of Geographic Sciences,Changsha 410081,China;Hunan Provincial Key Laboratory of Geospatial Big Data Mining and Application of Hunan Normal University,Changsha 410081,China;School of Architecture and Urban Planning,Hunan City University,Yiyang 413000,China)
出处
《热带地理》
北大核心
2025年第12期2306-2319,共14页
Tropical Geography
基金
国家自然科学基金项目(42371216)
国家自然科学基金项目(42171183)。
关键词
新型农业经营主体
农业现代化水平
地理探测器
长株潭城市群
New type of agricultural operating entities
agricultural modernization level
geographic detector
Chang-Zhu-Tan Urban Agglomeration
