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. 2023 Nov 8;18(11):e0294037.
doi: 10.1371/journal.pone.0294037. eCollection 2023.

Evolution and spatial reconstruction of rural settlements based on composite features of agglomeration effect and ecological effects in the Hexi Corridor, Northwest China

Xiaoying Nie  1 , Chao Wang  1 , Wanzhuang Huang  1
Affiliations

Evolution and spatial reconstruction of rural settlements based on composite features of agglomeration effect and ecological effects in the Hexi Corridor, Northwest China

Xiaoying Nie et al. PLoS One. .

Abstract

Rural reconstruction plays a pivotal role in the revitalization of rural areas and the development of regions. Understanding the pattern and direction of rural settlement reconstruction is crucial for effectively coordinating urban and rural development, as well as promoting regional rural revitalization. The present study proposes a novel approach to elucidate the evolution and spatial reconstruction of rural settlements by integrating features of agglomeration effect and ecological effect. By employing GIS spatial analysis technology and ecosystem service value modeling, the research analyzes the combined spatial agglomeration and ecological value characteristics of rural settlements in an arid oasis area, specifically focusing on the Hexi Corridor. Based on the analysis, the study identifies specific rural settlement reconstruction zoning and directions for optimization, considering rural settlement accessibility. The study reveals three key findings: (1) There are significant differences in the scale density and spatial distribution of rural settlements across the Hexi Corridor. (2) The overall ecological environment quality is good, and there is significant spatial differentiation in the ecosystem service value, influenced by topographic factors. (3) The optimal layout mode for rural settlements in the Hexi Corridor is the combination type of 'higher-ecological higher-density'. Based on the combined agglomeration effect and ecological effect features, the research determines the reconstruction scope of alienated rural settlements. Additionally, four predominant reconstruction modes are identified: urban agglomeration type, central village construction type, internal coordination type, and ecological protection type. The study proposes viable reconstruction paths for rural settlements based on these modes.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Overview of the study area in Hexi Corridor, China (the map was prepared in ArcGIS 10.5 using political boundaries from the data center for resources and environmental sciences, Chinese Academy of Sciences (RESDC) (http://www.resdc.cn) and the Geospatial Data Cloud site, Computer Network Information Center, Chinese Academy of Sciences (http://www.gscloud.cn)).
Fig 2
Fig 2. Trends in the number and area of rural settlements in the Hexi Corridor.
Fig 3
Fig 3. Spatial distribution of the scale core density value and the hot and cold spots of rural settlements in the Hexi Corridor (the map was prepared in ArcGIS 10.5 using political boundaries from the data center for resources and environmental sciences, Chinese academy of sciences (RESDC) (http://www.resdc.cn)).
Fig 4
Fig 4. Temporal and spatial changes in the ecosystem services value (ESV) across the Hexi Corridor(the map was prepared in ArcGIS 10.5 using political boundaries from the Data Center for Resources and Environmental Sciences, Chinese Academy of Sciences (RESDC) (http://www.resdc.cn)).
Fig 5
Fig 5. Spatial distribution of the combined characteristics of rural settlement agglomeration and ecological value for the Hexi Corridor(the map was prepared in ArcGIS 10.5 using political boundaries from the Data Center for Resources and Environmental Sciences, Chinese academy of sciences (RESDC) (http://www.resdc.cn)).
Fig 6
Fig 6. Direction and partitioning of rural settlement space reconstruction in the Hexi Corridor(the map was prepared in ArcGIS 10.5 using political boundaries from the Data Center for Resources and Environmental Sciences, Chinese Academy of Sciences (RESDC) (http://www.resdc.cn)).
See this image and copyright information in PMC

References

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