黄河大堤内外农村居民点空间格局演变特征及差异分析--以河南段为例  

Analysis on the Evolutionary Characteristics and Differences of the Spatial Pattern of Rural Residential Areas Inside and Outside the Yellow River Levee——A Case Study of Henan Section

作　　者：王晓东 杨佳昕 张文颜 何双言 姜山[2] 李琳 王磊 秦明周[2,3] WANG Xiao-dong;YANG Jia-xin;ZHANG Wen-yan(Ecological Environment Monitoring Center of Kaifeng,Kaifeng,Henan 475000;The College of Geography and Environmental Science,Henan University,Kaifeng,Henan 475004)

机构地区：[1]河南省开封生态环境监测中心,河南开封475000 [2]河南大学地理与环境学院,河南开封475004 [3]河南大学乡村振兴战略研究中心,河南开封475004

出　　处：《安徽农业科学》2023年第10期259-265,共7页Journal of Anhui Agricultural Sciences

基　　金：河南省软科学研究计划项目(222400410171);河南省沿黄生态建设与乡村振兴研究引智基地项目(CXJD2020002)。

摘　　要：为探寻黄河下游生态薄弱河段大堤内外居民点空间格局演变特征及差异,基于2009—2019年高分辨率遥感影像,运用空间韵律测度、GIS空间分析等方法对研究区居民点空间格局特征变化进行分析。结果表明,在空间分布变化方面,大堤内外农村居民点均分布更加集中和密集,堤内聚集态势更强,居民点发展方向相反。核密度高值区域变化不明显,中低值区域变化显著;在规模特征变化方面,研究区居民点总量减少,总体规模偏小。堤外居民点规模明显高于堤内,但堤内居民点扩张面积却超过堤外,居民点个数变化受不同因素影响,小规模居民点扩张明显。热点区沿黄河大堤呈糖葫芦形间断分布,热点区和冷点区均减少;在形态变化方面,堤内外居民点形态均朝规则方向发展,堤内外均保持着较好的连通度。堤外破碎化程度高于堤内,并且在10年后该态势保持不变。结合近10年来滩区和堤外居民点空间格局变化特征,提出堤内外差别化居民点空间管控和整治,为黄河滩区生态保护和高质量发展背景下的农村居民点迁建工程、滩区脱贫攻坚提供参考。In order to explore the characteristics and differences of the spatial distribution and evolution of the residential areas inside and outside the embankment of the ecologically weak river section of the lower Yellow River,based on high resolution remote sensing images during 2009-2019,using models such as exploratory spatial data analysis and spatial metrics,the paper conducts a quantitative analysis of the space differentiation of rural settlements in the study area.The results are shown as follows:In terms of spatial distribution,the rural settlements in the study area are characterized by obvious concentration with evident spatial variability,the concentration within the embankment is stronger,and the development direction of the settlements is opposite.The regional changes of large values of nuclear density are not obvious,and the changes of small value areas are significant.In terms of changes in scale characteristics,the scale of the residential areas in the study area has decreased,and the overall scale has been smaller.The scale of settlements outside the embankment is significantly larger than that within the embankment,but the expansion area of settlements is opposite.The number of settlements is affected by different factors and the expansion of small-scale settlements is obvious.The hotspot area is intermittently distributed along the Yellow River embankment,and the hotspot area and the cold spot area are reduced.In terms of morphological changes,the shape of the residential areas inside and outside the embankment has developed in a regular direction,and good connectivity has been maintained inside and outside the embankment.The degree of fragmentation outside the embankment is higher than that the inside,and the situation remains unchanged after ten years.Based on the changes in the spatial pattern of rural settlements inside and outside the embankment in the past 10 years,the spatial management and improvement of differentiated settlements inside and outside the embankment are proposed to relocate t

关 键 词：黄河大堤 农村居民点 空间格局 河南段 

分 类 号：TU982.29[建筑科学—城市规划与设计]