[1]LIAO Yanmei,LAN Anjun,YIN Linjiang,et al.Spatial Distribution Characteristics and Influencing Factors of Rural Settlements in Karst Mountainous Areas[J].Research of Soil and Water Conservation,2021,28(06):233-241.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 06
Page number:
233-241
Column:
Public date:
2021-10-10
- Title:
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Spatial Distribution Characteristics and Influencing Factors of Rural Settlements in Karst Mountainous Areas
- Author(s):
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LIAO Yanmei1,LAN Anjun1,3,YIN Linjiang2,3,LI Rui1,RAN Chen1,ZHONG Jiusheng1,3
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(1.School of Geographic and Environmental Sciences,Guizhou Normal University,Guiyang 550025,China; 2.Institute of Karst Science,Guizhou Normal University,Guiyang 550001,China; 3.State Engineering Technology Institute for Karst Desertification Control,Guiyang 550001,China)
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- Keywords:
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karst mountainous area; rural settlements; hotspots analysis; spatial distribution characteristics; Guizhou Province
- CLC:
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K901.8
- DOI:
-
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- Abstract:
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Fully understanding the spatial distribution and concrete influencing factors of the rural settlements in Karst mountainous areas is of great significance to the layout optimization of rural settlements and the construction of the new countryside. Taking Guizhou Province as an example,we explored the spatial distribution characteristics such as the overall distribution and patch scale,shape and density of karst mountainous area's rural settlements on the basis of the remote sensing data with high accuracy,through analyzing landscape index,exploring average nearest neighbor,kernel density and other methods. We also analyzed the influences of its geographic terrain,location and socio-economy on the spatial distribution of rural settlements. The results show that:(1)on the whole,Guizhou Province's rural settlements present the agglomerative distribution patterns; the scale,shape and density of the rural settlement showed the distribution patterns from north to south of low-high-middle,high-low-middle,high-middle-low,respectively;(2)from the patch size's perspective,Guizhou Province boasted an extensive acreage of rural settlement,including 1 204.06 km2 of large-scale settlement,which accounted for 35.63% of the total area; the shapes of plaques were regular as a whole,the acreages of regular shapes were 1 555.83 km2 which accounted for 46.04%; the overall distribution density was high(about 13.8 counts/km2).(3)the geographic terrain,location and socio-economy had a comprehensive influence on the scale,shape and density of rural settlement; firstly,among geographic terrain factors,the altitude had the greatest impact on its density,the same as the gradient on the shape and density,yet the scale was mainly influenced by topographic relief; secondly,among locational factors,the traffic had the most impact on its density,and towns and water areas had greater impact on all of the three; lastly,among socio-economic factors,population,nation and economy mainly had influence on its scale and shape,yet the policy would affect all of the three.