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[1]TANG Qian,LI Xiaokun,ZHONG Boxing,et al.GIS-Based Research on the Evaluation of Spatial Distribution of Villages and Human Settlements Environment Suitability in Chengkou County of Chongqing[J].Research of Soil and Water Conservation,2019,26(02):305-311.

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GIS-Based Research on the Evaluation of Spatial Distribution of Villages and Human Settlements Environment Suitability in Chengkou County of Chongqing

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 02 Page number: 305-311 Column: Public date: 2019-04-28

Title:: GIS-Based Research on the Evaluation of Spatial Distribution of Villages and Human Settlements Environment Suitability in Chengkou County of Chongqing

Author(s):: TANG Qian¹, LI Xiaokun¹, ZHONG Boxing², WANG Keyu¹; 1. School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China;
2. Key Laboratory of Surface Process and Environment Remote Sensing in the Three Gorges Reservoir Area, Chongqing 401331, China

Keywords:: village; spatial distribution; village human settlement environment; suitability; Chengkou County

CLC:: C912.82

DOI:: -

Abstract:: We took Chengkou County of Chongqing as a case study to explore the spatial distribution of villages and human settlements environment suitability in Qinba Mountain region, which provides a scientific basis for village layout planning and poverty alleviation in backward mountain areas. We analyzed the spatial distribution of villages in Chengkou County by using kernel density analysis and spatial hot spot detection. Based on land relief, vegetation index and hydrology index, we set up the human settlements environment index (HEI) model and evaluated the suitability of human settlement environment in Chengkou County. The results showed that: (1) the high concentration of villages mainly distributed in the western, southern and central regions, the sparsely populated areas mainly distributed in the eastern and northern regions; village density decreasesd from west to east and from south to north，the distribution of villages showed a band-like extension, flaky accumulation, and scattered features of scattered distribution of ‘islands’; (2) the number distribution of villages was closely related to topography, and decreased with the increase of spatially differentiated terrain factor; (3) human settlement environment was divided into five suitability levels: unsuitable, critically suitable, generally suitable, higher suitable and highly suitable; (4) in the existing villages, the villages in the unsuitable areas accounted for 16.45%, the villages in the critical suitable areas and the general suitable areas accounted for 65.96%, and the villages in the higher suitable areas and the highly suitable areas accounted for 17.59%. It can be seen that there is an inverse U-shape correlation between the village suitability index and the number of villages. The research area should adjust and optimize the existing village distribution according to the suitability of the human settlement environment, and strengthen the construction of the human settlement environment in order to synergize the poverty alleviation and the beautiful countryside construction.

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