天山北坡经济带城乡聚落格局变化与影响因素分析OACSTPCD

Taking the urban and rural settlements of the north slope economic belt of Tianshan Mountains as the research object,the changes of urban and rural settlement pattern during 1980-2020 are analyzed by using landscape pattern index,geographic information system(GIS)spatial analysis and ranking-scale method,and the influencing factors of urban and rural agglomeration pattern are explored from the nature,location and so-cio-economic factors using geographical detectors.The results show that the number and scale of urban and ru-ral settlements have continued to expand and tend to gather during 1980-2020.In the first 20 years,the expan-sion is mainly cultivated land and grassland,and in the second 20 years,the expansion is mainly unused land.The density of urban and rural settlements changes significantly.The high-density areas mainly concentrate in the oases showing the characteristics of"multi-core concentrated distribution",the medium density areas ex-pand along the high-density areas,and the low density areas distribute along the edge of the oasis and expand in the non-oasis areas.The scale of the first settlement has developed well,tending towards a ranking-scale curve,medium sized settlements have slightly developed,while the number of small settlements continues to decrease.The location factors such as traffic are the first influencing factors of urban and rural settlement pat-tern in the north slope of Tianshan Mountains,followed by socio-economic factors,and the influence of natural geographical factors is relatively small.The differences in various influencing factors are significant.