Spatial mismatch measurement and evolutionary characteristics of construction land use under undifferentiated land use comparison
From the perspective of undifferentiated comparison of land use,the spatial and tem-poral evolution of the spatial mismatch of urban construction land in China is investigated based on the land comparable correction model and the extended HK model,with a view to pro-viding reference for the efficient and scientific allocation of construction land.The results show that:(1)During the study period,the spatial mismatch of construction land generally showed a"W"-shaped fluctuating trend,which was characterized a predominantly over-allocation and a supplementary under-allocation.At the regional level,the degree of mismatch in the east fluctu-ated greatly and was higher than the national average after 2012,the central region was largely below the national average,the western region was always higher than the national average,and the northeast region showed an inverted"N"-shaped downward trend.(2)During the study period,the spatial under-allocation of construction land evolved from a belt-shaped distribution to a cluster-shaped distribution,and there was a characteristic of spreading from the southeast-ern coast to the inland areas.The spatial over-allocation always showed a pattern of contiguous distribution,and there was a tendency from peripheral distribution to internal aggregation.(3)From the perspective of different city sizes,small cities had the highest degree of mismatch,followed by megacities,then medium-sized cities,and finally large cities.However,the mis-match in megacities was more dominated by under-allocation,while other city sizes were main-ly dominated by over-allocation.The results of the study help to improve the objectivity and scientificity of the identification of spatial mismatch of construction land and promote the opti-mization and improvement of the efficiency of construction land allocation.
construction landspatial mismatchundifferentiated land use comparisonspatio-temporal pattern
万方数据
维普
