Characteristics analysis of village and small town in Linwei district of Weinan city based on RS and GIS

摘要

Village and small town areas have been gradually expanding in Linwei District of Weinan city as the study area. It is important to analyze the characteristics of village and small town in that district for achieving the scientific development on the urban and rural areas. In the study, the vector data were obtained by interpretion, using ArcGIS 9, according to Landsat TM remote sensing images in 2007. Then we calculated the parameters of the spatial distribution of village and small town, including the settlement areas, the percentage of residential land, the density and the distance between the towns and villages. Through statistical analysis of those parameters, the characteristic is clear. The research shows that the average area of plains is 0.15km~2, the average area of loess hill is 0.11km~2, the average area of mountainous is 0.03km~2; the average density is less than 0.9 per km~2; the distance between towns and villages is short, and the average distance less than 0.98km.