Sun Zixiang,Hu Tao,Li Chaomin,et al.Study on the Spatiotemporal Evolution Characteristics and Influencing Factors of Rural Settlements in the Xiangjiang River Basin[J].Research of Soil and Water Conservation,2024,31(06):344-353.[doi:10.13869/j.cnki.rswc.2024.06.043]
湘江流域农村居民点时空演变特征及影响因素研究
- Title:
- Study on the Spatiotemporal Evolution Characteristics and Influencing Factors of Rural Settlements in the Xiangjiang River Basin
- 文章编号:
- 1005-3409(2024)06-0344-10
- Keywords:
- rural residential areas; landscape pattern index; spatial autocorrelation; geographically and temporally weighted regression; crop sown area; Xiangjiang River Basin
- 分类号:
- TU982.29
- 文献标志码:
- A
- 摘要:
- [目的]探究多因素驱动下湘江流域农村居民点空间格局的形成过程,为农村土地资源配置优化研究提供理论依据,并为村庄规划与建设提供科学指导。[方法]借助景观格局指数、核密度分析、空间自相关分析以及时空地理加权回归模型探究湘江流域2000—2020年农村居民点时空演变特征及影响因素。[结果](1)湘江流域农村居民点主要集中在长株潭和衡永郴周边地区,其余区域分布较少,主要呈现“平原密集,山地稀疏”的特征。(2)湘江流域农村居民点用地增长明显,其破碎化速度有所减缓,形状规则程度有所提升,且呈现出显著的集聚趋势。(3)农村居民点的数量与面积在空间上的集聚特征较为相似,高—高集聚类型与低—低集聚类型的空间分布位置相对稳定,但低—低集聚类型逐渐缩减。平均形状指数的空间集聚特征表现为高—低集聚范围不断扩大,集聚特征明显增强,而低—低集聚特征有所减弱。(4)各因素对不同地区农村居民点的影响程度差异逐渐缩小,而农作物播种面积始终是影响农村居民点分布的主导因素。[结论]在多重因素的共同影响下,湘江流域农村居民点用地布局与结构形态不断优化,人居环境得到明显改善,建议发展非农经济的同时重视农业发展以及农村建设。
- Abstract:
- [Objective]This study aims to explore the formation process of the spatial pattern of rural settlements in the Xiangjiang River Basin under the influence of multiple factors, to provide theoretical support for optimizing rural land resource allocation, and to offer scientific guidance for village planning and construction. [Methods]Landscape pattern indices, kernel density analysis, spatial autocorrelation analysis, and spatiotemporal geographically weighted regression models were used to investigate the spatiotemporal evolution characteristics and influencing factors of rural settlements in the Xiangjiang River Basin from 2000 to 2020. [Results](1)Rural settlements in the Xiangjiang River Basin were primarily concentrated in the Changsha-Zhuzhou-Xiangtan and Hengyang-Yongzhou-Chenzhou areas, with fewer distributions in other regions, mainly exhibiting a ‘dense level in plains, sparse level in mountains' characteristic.(2)The growth of land used for rural settlements in the Xiangjiang River Basin was significant, with a slowdown in fragmentation, an improvement in shape regularity, and a noticeable trend of clustering.(3)The number and area of rural settlements showed similar spatial clustering characteristics, with the spatial distribution of high-high and low-low clustering types remaining relatively stable. However, the low-low clustering type was gradually decreasing. The average shape index showed an expanding range of high-low clustering and a significant strengthening of clustering characteristics, while the low-low clustering feature weakens.(4)The impact of various factors on rural settlements in different regions was becoming less pronounced, with the area of crop cultivation remaining the dominant driver of the distribution of rural settlements. [Conclusion]Under the influence of multiple factors, the land layout and structural form of rural settlements in the Xiangjiang River Basin were continuously optimized, and the human living environment had significantly improved. It is recommended to focus on the development of non-agricultural economy while paying attention to agricultural development and rural construction.
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备注/Memo
收稿日期:2024-04-22 修回日期:2024-05-09
资助项目:湖南省教育厅科学研究项目(22C0018); 湖南省自然科学基金(2019JJ50389)
第一作者:孙字祥(1997—),男,甘肃省永昌县人,硕士,研究方向为国土资源利用与管理。E-mail:szx@hunnu.edu.cn
通信作者:周楷淳(1988—),男,湖南省临澧县人,博士,讲师,硕士生导师,主要从事城市三维景观格局; 地理时空出行不平等研究。E-mail:zhoukaichun@hunnu.edu.cn