Multi-scale spatial heterogeneities of cultural relic protection units in Yellow River Basin and its spatial relationship with geographical environment
This paper takes all the administrative units through which the Yellow River flows as the research unit and 2078 national key cultural relic protection units(hereinafter referred to as"cultural relic protection units")as the research object,and uses the methods of geographic concentration,imbalance index and hotspot analysis to analyze the spatial differences of cultural relic protection units at the provincial and city scales.In addition,this paper also analyzes the spatial relationship of those cultural relic protection units with natural and human geography en-vironment.The results showed that:(1)From the perspective of spatial aggregation characteris-tics,the distribution of cultural relic protection units in the Yellow River Basin shows a concen-trated pattern at both provincial and city scales,and the concentration at city scale is higher than that at provincial scale.(2)In terms of hotspot distribution,the spatial characteristics of cultural relic protection units at the provincial scale show"south high and north low",and at the city scale show"center and edge".(3)In terms of the relationship with the natural environment,the distribution of cultural relic protection units has significant features of low altitude,high accumu-lated temperature(AAT10)and close to rivers.In addition,cultural relic protection units are mainly distributed in areas with slope less than 2° and annual precipitation in the range of 400-800mm.The land surface vegetation(NDVI)did not have a significant impact on the spatial dis-tribution of cultural relic protection units.(4)In terms of the relationship with the human envi-ronment,although GDP and highway mileage have certain effects on the distribution of cultural relic protection units,there is no linear regression relationship between them.Cultural relic pro-tection units show a strong correlation with population size and cultural investment expenditure.In addition,cultural relic protection units show certain spatial coupling with A-level scenic spots and intangible heritage projects.
cultural relic protection unitsspatial differencesgeographical environmentspa-tial relationshipYellow River Basin
NETL
NSTL
万方数据
