摘要
揭示国土空间格局与功能演变的内在机制对缓解国土空间冲突具有现实意义。在探讨国土空间格局与功能交互机制的基础上,采用地学图谱、核密度估计等模型分析2000—2020年长江经济带国土空间格局与功能演变的时空特征,借助双变量空间自相关模型识别国土空间格局与功能演变的响应过程。结果表明:1)长江经济带20 a内城镇空间扩张29559.54 km^(2),迫使农业空间与生态空间分别减少25162.63、3268.36 km^(2),农业空间与生态空间互换及其内部结构重组主导国土空间格局演变过程,国土空间格局演变速度呈现上游快于中游快于下游的地域分异规律。2)长江经济带城镇、农业和生态功能均值分别由0.129、0.287、0.646提升至0.343、0.456、0.698,中、下游地区国土空间功能发展由城镇功能拉动、农业功能推动,上游地区国土空间功能发展由生态功能主导、农业功能抬升,国土空间功能演变强度具有下游高于中游高于上游的区域差异特征。3)国土空间格局与功能演变具有双向非线性响应关系,城镇空间扩张与其功能扩容呈现“双增”的空间正相关性,农业、生态空间收缩与其功能提质呈现“一减一增”的空间负相关性,上、下游国土空间格局与功能演变的响应程度较高,中游地区因面临上游地区城镇、农业功能的虹吸效应和下游地区生态功能的溢出效应,响应程度较低。应以国土空间功能提质、增效、扩容为导向,形成互补、融合、协调的城镇空间开发、农业空间保护、生态空间修复的国土空间格局,促进长江经济带可持续均衡发展。
Territorial space pattern and functional evolution are of the practical significance to alleviate the territorial conflicts.This study aims to explore the interactive mechanisms between territorial space pattern and function.Geospatial diagrams and kernel density models were employed to analyze the spatiotemporal features of territorial space pattern and functional evolution in the Yangtze River Economic Belt from 2000 to 2020.Additionally,the bivariate space autocorrelation models were utilized to identify their response to the territorial space pattern and functional evolution.The results indicated:①The urban space was expanded by 29,559.54 km² in the study area over two decades,leading to the reductions of 25,162.63 and 3,268.36 km^(2) in the agricultural and ecological spaces.The exchange and internal restructure of agricultural and ecological spaces dominated in the evolution of territorial space pattern.The rate of change in the territorial space pattern exhibited a regional differentiation pattern,where the upstream region evolved faster than the middle and downstream.②The mean values of urban,agricultural,and ecological functions increased from 0.129,0.287,and 0.646 to 0.343,0.456,and 0.698,respectively.The territorial space functions in the middle and downstream regions was driven by urban and agricultural functions,while in the upstream region,it was dominated by ecological functions and elevated agricultural functions.There were the regional differences in the intensity of territorial space function,where the downstream region surpassed the middle and the upstream regions.③A bidirectional nonlinear relationship was found in the territorial space pattern and functional evolution.Urban space expansion and the functional enlargement showed a positive space correlation characterized by“both increasing.”Conversely,the conflict of agricultural and ecological spaces was negatively correlated with the their functions,indicating a“one decrease,one increase”space pattern.There was the higher level
作者
林树高
诸培新
陆汝成
陈昌玲
毕佳港
罗金玲
LIN Shugao;ZHU Peixin;LU Rucheng;CHEN Changling;BI Jiagang;LUO Jinling(Nanjing Agricultural University,College of Public Administration,Nanjing 210095,China;China Resources&Environment and Development Academy,Nanjing 210095,China;School of Natural Resources and Surveying and Mapping,Nanning Normal University,Nanning 530001,China)
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2024年第4期304-316,共13页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家社会科学基金项目(22 VRC163)
国家自然科学基金项目(42061043)
江苏省智库研究重点项目(22-5)。
关键词
国土空间
"三区空间"
格局演变
功能演变
响应过程
长江经济带
territorial space
"three-zone space"
pattern evolution
functional evolution
response process
Yangtze River Economic Belt
