Reasarch On The Spatial Pattern Of The Countryside Based On GIS In Diqing Tibetan Autonomous Prefecture

The urban and rural development and new countryside construction are very important today.It is of great theoretical significance to study the spatial pattern of rural settlementTo get precisely information of the countryside in Diqing,this thesis take satellite remote sensing image and elevation data as data source,use GIS technology like core density image,buffer analysis,spatial overlay analysis,to analyze the spatial pattern of rural settlements in the sight of Macroscopic and intermediate perspective.The conclusion is:After the research,the countryside are high concentration in the spatial,specific performance,obvious banded agglomeration distribution.prominent regional differences distribution,and as a whole,there are two distinct agglomeration cores in the research area.There are three unique patterns of spatial agglomeration in the countryside in Diqing,that is "several axes nearly parallel pattern","comb shape pattern" and "nobody pattern in alpine region" The formation of the countryside assemble pattern of spatial is because of the comprehensive influence of several factors,like terrain,river,road.There are 5 patterns of morphological of the countryside in Diqing,as follow:conglomeration pattern,group pattern,finger pattern,ribbon pattern and scatter pattern.Scatter pattern is the main pattern among these four pattern in Diqing.Unique terrain conditions makes diversified pattern of the countryside in Diqing.Major pattern as follow:Follow the mountains,Attachment slope,Tributary estuary,Step type paralleled the contour,Vertical contour,foot edge of the hill,Along the river,Along the road,Adapt terrain texture.Line pattern,dendritic pattern and reticular pattern are the most common patterns of the countryside street form in Diqing.