长江流域资源与环境 >> 2017, Vol. 26 >> Issue (12): 2083-.doi: 10.11870/cjlyzyyhj201712017

• 自然资源 • 上一篇    下一篇

盘县农村居民点空间分布特征及其地形地貌影响因素分析

谭学玲,闫庆武*,李晶晶,胡苗苗   

  1. (中国矿业大学环境与测绘学院,江苏 徐州 221008)
  • 出版日期:2017-12-20

ANALYSIS THE CHARACTERISTICS OF SPATIAL DISTRIBUTION AND #br# TOPOGRAPHICAL INFLUENCING FACTORS OF RURAL #br# SETTLEMENTS IN PAN COUNTY

TAN Xueling, YAN Qingwu, LI Jingjing, HU Miaomiao   

  1. (School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221008, China)
  • Online:2017-12-20

摘要: 农村居民点空间分布及其影响因素的研究是乡村聚落地理的主要研究内容之一,也是GIS-RS应用的重要领域。运用核密度估计、变异系数(Cv)和景观格局指数,以盘县农村居民点为研究对象,研究其空间分布与景观格局特征,并侧重分析了地形地貌因素的影响。结果表明:(1)总体看,盘县农村居民点呈现出“中部、西北部密,南部、东北部疏”的分布格局,与研究区的平原、河谷和低中海拔地区的分布相一致。(2)通过点模式分析(Point Pattern Analysis, PPA)发现,村级、乡镇级以及不同地形地貌分级3个尺度的农村居民点空间分布的Cv值都大于64%,均属于集聚型分布。(3)在各种地形地貌因素中,海拔、坡度和地形起伏度等是影响盘县农村居民点分布的关键因子;随着海拔的升高、坡度和地形起伏度的增加以及地貌的变化,农村居民点的集聚程度、用地面积、比重和不规则程度呈先增加后减少的趋势;75%以上的农村居民点分布在平均海拔、较小地形起伏度(50~100 m)、较低坡度(5°~15°)、南向坡向和小起伏山地区域。

Abstract: The spatial distribution of rural residential area and its influencing factor is one of the main studies of rural settlements geography, and it is also an important field of GISRS applications. This paper selected the rural settlements of Pan County as the study area, analyzed the characteristics of spatial distribution and landscape pattern by using the method of kernel density estimation, coefficient variation (Cv), and landscape pattern index to examine the influence of topography and landforms factors. The results showed that: (1) The spatial distribution of rural residential area in Pan County had showed the pattern of “middlenorthwest intensive and southnortheast extensive”, which was the same distribution as the plain, valley and lowmid elevation in the study area. (2) By using the Point Pattern Analysis (PPA), the Cv value of the spatial distribution of rural residential area at village, township and the different topography classification) were greater than 64%, which belonging to the cluster distribution. (3) In various topographic factors, altitude, slope and relief amplitude are the key factors to influence the distribution of rural settlements; with the increasing of altitude, slope and relief amplitude, the land area, proportion and irregular degree of rural residential area showed increased first and then decreased; more than 75% of rural residential area were located on the region of average elevation, smaller relief amplitude (50-100 m), lower slope (5-15 degrees), south slope and small undulating mountain.

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