Spatial distribution optimization of rural residential land in hilly areas:A case study of Haitang town in Changshou district
Spatial distribution optimization of rural residential land in hilly areas:A case study of Haitang town in Changshou district
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作者：
Fan Tianxian
本文以农村居民点为研究单元。在对海棠乡农村居民点用地斑块综合影响分析的基础上，基于不同地形设计了不同的优化空间布局策略，并运用Voronoi方法为指导农村居民点用地迁移提供了迁移方向。研究结果表明：(1)183个具有村级影响的农村居民点用地斑块面积为183.57 hm2, 391个具有群体级影响的农村居民点用地斑块面积为183.57 hm2, 118个散居点用地面积为31.49 hm2；影响较大的农村居民点地块主要分布在地形较为平坦的海棠县中东部。(2)通过布局优化，全县农村居民点用地总面积由优化后的421.92 hm2减少到优化后的353.73 hm2，减少幅度为16.16%；农村居民点密度从14.74个/ km2下降到8.84个/ km2，减少了39.35%；农村居民点平均面积从0.61 hm2下降到0.84 hm2，减少了37.70%。通过以上分析，在一定程度上改善了海棠县农村居民点分散的空间分布状况。
This paper regards rural residential land patch as a research unit. According to the analysis of comprehensive influence on rural residential land patch in the Haitang country, we design different optimal spatial distribution strategies based on different landforms, and provide migration direction for guiding rural residential land parch by employing the method of Voronoi. The results of this study show the following aspects:(1) the area of 183 rural residential land patches with village- level influence is 183.57 hm2, and the area of 391 rural residential land patches with group-level influence is 183.57 hm2, and the area of 118 scattered settlements is 31.49 hm2; rural residential land patch with greater influence is mainly distributed in the central-eastern part of Haitang county where the terrain is comparably flat.(2)Through layout optimization, the total area of rural residential land patch in the whole county has decreased from 421.92 hm2 to 353.73 hm2 after optimization, or a reduction of 16.16%; and the density of rural residential land patch has decreased by 39.35%, from 14.74 per km2 to 8.84 per km2, and the average area of rural residential land has decreased from 0.61 hm2 to 0.84 hm2,or a reduction of 37.70%. From the above analysis, the scattered spatial distribution of rural residential land in Haitang county has been improved to a certain extent.