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| 数量化赣南低山丘陵区农村居民点空间布局研究 |
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张佳佳1,2, 赵小敏2, 郭熙1,2, 谢文1,2, 陈拾娇1,2
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| (1.江西农业大学 国土资源与环境学院, 南昌 330045;2.江西农业大学 江西省鄱阳湖流域农业资源与生态重点实验室, 南昌 330045) |
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| 摘要: |
| 为通过数量化分析掌握赣南低山丘陵区龙南县农村居民点的空间分布规律,以龙南县2013年农村居民点和DEM矢量数据为研究对象,运用GIS空间分析法、Voronoi图Cv值与核密度函数相结合的分析方法,探究了龙南县居民点的空间分布特征及其影响因素。结果显示:龙南县整体Cv值达到了147.81%,各乡、镇、垦殖场除了安基山垦殖场之外,其余14个乡级单位的Cv值都大于64%,居民点空间集聚分布特征明显,呈现出大集聚,小分散特征;基于核密度分析发现龙南县居民点空间布局呈现"北密南疏"的格局,平均密度为1.66个/km2;同时龙南县居民点空间布局受海拔、坡度、坡向、公路与河流水源因素影响较强,表现出明显的地形和交通指向。 |
| 关键词: 农村居民点 Voronoi图 核密度估计 空间布局 |
| DOI：10.11841/j.issn.1007-4333.2016.06.017 |
| 投稿时间：2015-09-02 |
| 基金项目:国家自然科学基金资助项目(41361049);江西省自然科学基金资助项目(20122BAB204012) |
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| Study on the spatial layout of hilly area rural settlements of Gannan based on quantification |
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ZHANG Jia-jia1,2, ZHAO Xiao-min2, GUO Xi1,2, XIE Wen1,2, CHEN Shi-jiao1,2
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| (1.Land Resource and Environment College, Jiangxi Agricultural University, Nanchang 330045, China;2.Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology of Jiangxi Province, Jiangxi Agricultural University, Nanchang 330045, China) |
| Abstract: |
| Quantitative analysis was adopted to understand a rural settlements spatial distribution in Longnan County of Gannan hilly area and provide the effective reference in Longnan County residential renovation and village planning.The rural residents in Longnan County in 2013 and DEM vector data were taken as study object.GIS spatial method and Voronoi diagram Cv value analysis method combined with kernel density function were used to explore the Longnan County residential spatial distribution characteristics and influencing factors.The results showed that:The overall Cv value reached 147.81% in Longnan County;In addition to Anjishan reclamation farm, the remaining 14 townships of the Cv value is greater than 64%, The spatial distribution of residential space is obvious, showing a large gathering and small dispersion characteristics;Kernel density analysis found that residents of Longnan County spatial layout showing "north intensive south sparse" pattern, the average residential density is 1.66/km2;Residents of Longnan County spatial layout are relatively strong Influenced by elevation, slope direction, slope, road and river water, Showing obvious terrain and traffic direction. |
| Key words: rural settlement Voronoi diagram kernel density estimation spatial distribution |
