Spatial differentiation characteristics of rural residential areas under different terrain and landforms in the mountainous areas of Northwest Guizhou
In order to reveal the spatial differentiation characteristics of rural residential areas under different terrains and landforms in the mountainous areas of northwest Guizhou,taking Bijie City as an example,based on high-precision remote sensing images,methods such as hotspot detection,kernel density,and spatial superposition were used to explore the overall differentiation character-istics of rural residential areas of different scales in the mountainous areas of northwest Guizhou and their differentiation characteristics under different terrains and landforms.The results showed that rural residential areas in Bijie City were widely distributed,with a high degree of fragmentation and strong layout flexibility,mainly consisting of medium-sized rural residential areas;the overall density was relatively high,with higher values in the western and eastern regions and lower values in the central region,high density clusters were mainly large-scale rural residential areas,and low density agglomeration areas were mainly small-scale rural residential agglomeration areas;the differentiation characteristics of rural residential areas in Bijie City were quite obvious under different terrains and landforms.Within different elevations,slope orientations,and terrains undulations,medium-sized rural residential areas were the main ones,however,the distribution of rural settlements of different scales varied.Small-scale rural settlements were mainly distributed in the mountainous terrains with elevations ranging from 1 200 to 2 400 m,slopes ranging from 6°to 35°,and terrains undulations less than 400 m and the selectivity of slope orientation was not significant;medium and large-scale rural residential areas were mainly distribut-ed in the mid mountain terrains with elevations of 1 200～2 400 m,slopes of 6°～35°,terrains undulation less than 400 m,and slopes of semi-shaded and sunny slopes.
rural residential areasterrains and landformsspatial differentiation characteristicsthe mountainous areas of Northwest Guizhou
NETL
NSTL
万方数据
