基于地理空间适宜性指数自相关的农村居民点整理分区

发布时间：2018-04-14 01:00

  本文选题：土地利用 + 整理　； 参考：《农业工程学报》2016年19期

【摘要】：农村居民点整理是提高建设用地节约集约利用水平的重要手段,为研究基于地理空间属性的区域农村居民点差异化整理方向和模式,提高整理效率,该文以甘肃省临夏县北塬地区为例,从农村居民点地理环境、空间区位、空间分布和空间形态4个方面构建居民点整理地理空间适宜性评价指标体系,通过对各指标标准化值加权求和并进行空间自相关分析,获取适宜性程度的空间聚集特征并结合各行政村超标可整理面积进行农村居民点整理分区,针对不同分区特征提出差异化的整理方向和模式。结果表明:1)地理空间适宜性值为32.093~85.226,空间分异明显,指标体系可较好地反映区域农村居民点地理空间属性差异;2)全局Moran指数为0.66,在0.01显著水平上极显著,呈显著正空间自相关性,LISA图显示只存在显著高高、低低聚集,与全局分析一致;3)分区划为优先整理区、次级整理区、并点整理区和选择性整理区,包含空间聚集特征,可较好地识别居民点整理适宜性和整理效益差异。研究可为农村居民点整理实践作参考,为农村居民点整理分区研究提供新的思路和方法。
[Abstract]:Rural residential land consolidation is an important means to improve the level of intensive utilization of construction land.Taking the north tableland area of Linxia County in Gansu Province as an example, this paper constructs the evaluation index system of geographical suitability of residential areas from four aspects: geographical environment, spatial location, spatial distribution and spatial form of rural residential areas.Through weighted summation of the standardized values of each index and spatial autocorrelation analysis, the spatial aggregation characteristics of the degree of suitability are obtained and the rural residential areas are organized and zoned in combination with the excess reorganized area of each administrative village.Aiming at different zoning features, the paper puts forward the sorting direction and mode of differentiation.The results showed that the global Moran index was 0. 66, and the global Moran index was 0. 66, which was very significant at 0. 01 level, and the spatial differentiation was obvious, and the index system could reflect the difference of geographical spatial attributes of rural residential areas.The significant positive spatial autocorrelation showed that there was only significant high and low aggregation, which was consistent with the global analysis. The subdivision was classified as priority finishing area, secondary finishing area, point finishing area and selective finishing area, which included spatial aggregation characteristics.It can better identify the suitability and benefit difference of residential land consolidation.The study can be used as a reference for the practice of rural residential land consolidation and provides new ideas and methods for the study of rural residential land consolidation zoning.
【作者单位】： 中国地质大学(北京)土地科学技术学院;国土资源部土地整治重点实验室;甘肃农业大学资源与环境学院;
【分类号】：F301.2
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本文编号：1746980