Research On The Distribution Pattern And Influencing Factors Of Residential Buildings In Li County,aba Prefecture Based On GIS

Li County is located in the northwestern part of Sichuan.It is a transitional area between the Chengdu Plain and the Qinghai-Tibet Plateau.The high mountains and deep valleys,where many ethnic groups live together in small groups,have formed a unique residential distribution pattern.The purpose of this research is to sort out the distribution pattern of residential houses under the unique geographical environment of Li County and the homogeneity and heterogeneity of the distribution characteristics of multi-ethnic houses,and finally the internal influencing factors and construction logic of these different distribution characteristics.This study uses Arc GIS analysis,data statistical analysis,comparative research and other methods to carry out quantitative analysis and comparative research on the overall residential distribution in Li County.The research first provides a general overview of the growth background of Li County’s residential buildings in four aspects: the natural geographic environment,historical and cultural environment,social and economic environment,and basic information on the residential environment of Li County(Chapter 2).Then,the influence of factors such as elevation,slope aspect,road water system,means of production,etc.on the overall distribution characteristics of Lixian residential buildings and the spatial distribution characteristics of multi-ethnic residential buildings is summarized(Chapter 3).Calculate the specific degree of influence of influencing factors on the distribution of residential buildings through the geographically weighted regression model(Chapter 4).Finally,it summarizes the site selection characteristics of multi-ethnic houses in Li County,and makes strategic suggestions for the protection and development of houses in Li County(Chapter 5).This study found that:(1)There are obvious high-density agglomeration areas in the distribution of residential areas within the overall county of Li County,and the spatial distribution fits well with the linear distribution of the Zagunao River Basin in Li County;(2)Water sources and traffic have a strong linear dependence on most residential buildings in Li County;(3)The residential houses of the Han and Qiang ethnic groups are mainly in Zagunao and the flat towns and small residential clusters along the river valley.Tibetan residential buildings are mainly distributed in better weather conditions.In the high-altitude regions of China,Tibetan houses are the most dependent on grassland resources,and Qiang’s houses are more dependent on farmland and farmland than those of other ethnic groups;(4)Calculated by the GWR model,the effect of the factors affecting the distribution of houses in Li County The standard deviation of degree in descending order is: slope,distance of cultivated land,aspect,altitude,distribution of poor households,accessibility of water source,accessibility of roads,distance of village committee station,distance of tourist attractions,medical access,per capita income.