中国北方典型样带耕地多功能时空演变及其区际耦合  

Multifunctional spatiotemporal evolution and its inter-regional coupling of cultivated land in a typical transect in Northern China

作　　者：余森 马恩朴 季艺雯 叶玮怡 蔡建明[3] YU Sen;MA En-pu;JI Yi-wen;YE Wei-yi;CAI Jian-ming(School of Geographical Sciences,Hunan Normal University,Changsha 410081,China;Key Laboratory for Urban-Rural Transformation Processes and Effects,Hunan Normal University,Changsha 410081,China;Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China)

机构地区：[1]湖南师范大学地理科学学院,长沙410081 [2]湖南师范大学城乡转型过程与效应重点实验室,长沙410081 [3]中国科学院地理科学与资源研究所,北京100101

出　　处：《自然资源学报》2025年第2期514-533,共20页Journal of Natural Resources

基　　金：国家自然科学基金项目(42101267,42101198)。

摘　　要：选取中国北方110个县域单元为研究样带,基于样带2000—2022年的土地利用数据和社会经济统计数据,采用耕地多功能指数评价法和耦合协调度揭示了样带耕地多功能时空演变及耦合协调特征,通过社会网络分析模型分析耕地多功能区际耦合关系。研究结果表明:(1)2000—2022年北方典型样带耕地利用多功能时空格局变化明显,经济生产功能呈上升趋势,冀南和山东大部分区域功能增长较为明显;社会生活功能整体上升显著,高值区主要聚集在样带北部的内蒙古各县域单元;生态环境功能较为稳定,低值区主要分布在样带中部。(2)研究期内样带耕地多功能耦合协调度下降,表现出明显的地域差异,样带南北地区高于中部地区的县域单元,即呈现出两头高中间低的空间分布特征,并且区际差异逐渐扩大。(3)在耕地多功能耦合网络中,社会生活、经济生产和生态环境功能具有明显的网络结构,但各功能整体以低强度联系为主;较低中心度的区县占主导,通过对网络空间聚类分析发现,各功能板块接收和溢出关系的内部联系较为紧密,外部联系需要加强。(4)耕地多功能的利用及耦合协调的动态演变除了区域差异外,还需考虑在耕地多功能耦合网络中的位置和关系等区际耦合关联。研究结果可为耕地多功能利用政策的制定和耕地的区域协同发展提供理论参考。This study selects a total of 110 counties in Northern China as the research transect,based on the land use data and socio-economic statistics from 2000 to 2022.It adopts the index evaluation method,the coupling degree of coordination and the social network analysis model to reveal the characteristics of the multifunctional spatiotemporal evolution of cultivated land use in the study area and the inter-regional coupling relationship.The results show that:(1)The spatial and temporal patterns of the functions of cultivated land use in the typical transect have changed significantly,with the economic production function showing an upward trend,and the growth of the function in most parts of Southern Hebei and Shandong being more obvious;the social life function has risen significantly as a whole,with the high value areas mainly clustered in the counties in Inner Mongolia in the northern part of the transect;the ecological function has been more stable,with the low and lower values mainly observed in the central part of the transect.(2)During the study period,the coordination degree of multifunctional coupling of cultivated land declined and showed obvious regional differences,with the northern and southern parts of the transect higher than the central part,i.e.,showing a pattern of high at the two ends and low in the middle,and the inter-regional differences gradually expanding.(3)In the multifunctional and coupled network of cultivated land,social life,economic production and ecological environment functions have an obvious network structure,but each function is dominated by the overall low intensity linkage;lower centrality of the districts and counties are dominant.Through the spatial clustering analysis,it is found that the internal linkage of the receiving and spillover relationship of each function is relatively strong,and the external linkage needs to be strengthened.(4)The dynamic evolution of multifunctional and coupled coordination of cultivated land needs inter-regional coupled associations such as locati

关 键 词：耕地多功能 北方样带 耦合网络 时空分异 社会网络分析 

分 类 号：F323.211[经济管理—产业经济]