Characteristics,regional differences,and influencing factors of agricultural spatial evolution in China from 2000 to 2020
The integration of various agricultural land types into a unified agricultural space,coupled with a scientific understanding of the spatial and temporal evolution of agricultural spaces nationwide,forms the cornerstone of agricultural spatial planning under the territorial spatial planning framework.This study anchors its analysis in the agricultural sustainable development zones and the Major Function-oriented Zones,employing spatial transition matrices,Dagum spatial Gini coefficients,and spatial econometric regression models.The period 2000-2020 serves as the temporal scope for dissecting the characteristics and regional differences of China's agricultural space evolution,and identifying the key influencing factors and their spatial variances in effects.The findings are as follows:(1)Over the past two decades,while the agricultural production space in China continually decreased,the agricultural living space expanded steadily.The distinct differentiation pattern of"westward increase,eastward decrease"along the Hu Huanyong Line has become prominent.The secondary topographical step is a dense hotspot for the transformation of agricultural spatial structure.The rapid agricultural expansion in the arid regions of Northwest China,the frigid areas of the Qinghai-Tibet Plateau,and the cold regions of Northeast China is gradually reshaping the national agricultural spatial pattern.(2)The regional imbalance of agricultural spatial layout has further escalated,with pronounced"intra/inter"disparities within the Major Function-oriented Zones during the evolution process.The disparities between urbanized and non-urbanized regions are the main source of nationwide differences.The evolution situation of agricultural space in non-agricultural product primary production areas is severe,accentuating conflicts between ecological conservation and agricultural development in the Northwest,as well as urban development and agricultural protection in the Southeast.(3)The transformation of agricultural spatial structure is a complex result of synergies among natural conditions,transportation location,and socio-economic factors.The spatial heterogeneity of the effects of various factors at different scales is evident,and the national agricultural spatial pattern is shaped by multiple spatial processes at different scales.Future strategies for Chinese agricultural development and the formulation of relevant agricultural spatial planning need to focus on the processes and laws of spatial evolution,while striving for more comprehensive spatial benefits through an understanding of emerging trends in agricultural spatial evolution.
万方数据
