岷江上游山区聚落生态位地理特征与驱动因子间关系研究

发布时间：2017-12-27 10:06

  本文关键词：岷江上游山区聚落生态位地理特征与驱动因子间关系研究　出处：《长江流域资源与环境》2016年11期 　论文类型：期刊论文

  更多相关文章： 山区聚落 生态位 地理特征 民族类型 驱动因子 岷江上游

【摘要】：山区聚落生态位反映聚落在山地垂直方向上所处的空间位置及人类生活所能利用的资源空间,是当地居民长期适应山地自然环境的结果。基于岷江上游各民族山区聚落生态位和气象、社会、地形驱动因子的空间分布,借助冗余分析,构建山区聚落生态位地理特征与驱动因子间的多水平贝叶斯模型,定量刻画聚落生态位的民族属性对山区聚落生态位地理特征与驱动因子间关系的影响。结果表明:(1)影响研究区域内1 667个与各民族聚落生态位地理特征的驱动因子有显著差异,海拔和坡度对前者影响较大,海拔、坡度、干季和湿季湿度、距河流距离对后者影响较大,且海拔对两者的影响程度都最大,海拔和坡度地形驱动因子与干、湿季湿度和距河流距离间的相关性较弱。(2)干、湿季湿度气象驱动因子对藏-羌聚落生态位地理特征影响较大,距河流距离和距县城距离社会驱动因子、海拔和坡度地形驱动因子对藏族聚落生态位地理特征影响较大,这与藏族聚落生态位的分布面积和个数有关。(3)民族类型对聚落生态位地理特征指标与气象因子干季湿度间关系的影响最大,对聚落生态位地理特征指标与地形因子坡度间关系的影响最小。岷江上游山区聚落生态位地理特征与驱动因子间关系的研究,为量化山区聚落生态位与山地环境的关系提供了有效的数据支撑。
[Abstract]:Mountain settlement niche reflects the location of settlements in the vertical direction of mountains and the resources space that human life can use, which is the result of local residents' long-term adaptation to mountain natural environment. The distribution of various nationalities of Minjiang River mountain settlement ecological niche and the weather, terrain, social driving factors based on the spatial redundancy by means of analysis, construction of mountain settlements niche geographical characteristics and driving factors of the hierarchical Bayesian model, describe the influence the settlement of niche of national properties and driving factors of the relationship between mountainous settlements niche geographical features. The results showed that: (1) effects of driving factors in the study area and 1667 ethnic settlements niche geographical features have significant difference, altitude and slope have great influence on the former, altitude, slope, dry and wet seasons and humidity, the distance from the river has great influence on the latter, and the influence of altitude on both the maximum altitude. The terrain and slope and driving factors of dry and wet season from humidity and correlation between the distance from the river. (2) in dry and wet season humidity weather driven factors affect Tibetan Qiang settlements niche geographical features, the distance from the river and the distance from the county social driving factors, altitude and slope terrain driving factors have great influence on the Tibetan settlements niche geographical features, and the Tibetan settlements niche distribution area and the number of. (3) the effect of national type of settlement niche geographic feature index and meteorological factors in the relationship between the maximum humidity, impact on the slope settlement niche geographical characteristics index and the relationship between the minimum terrain factor. The relationship between geographical location and driving factors of mountain settlements in the upper reaches of Minjiang River provides effective data support for quantifying the relationship between mountain settlement niche and mountain environment.
【作者单位】： 西南科技大学环境与资源学院;
【基金】：国家科技支撑计划项目(2015BAC05B05) 四川省科技支撑计划项目(2014SZ0058) 西南科技大学博士基金(15zx7132)~~
【分类号】：K901.8
【正文快照】： 聚落生态位是指聚落所占据地理区位及其人类生活所能利用的资源总和,是人与环境相互作用最密切的时空单元[1]。山区聚落生态位反映了聚落在山地垂直方向上所处的空间位置及其人类生活所能利用的资源空间[2]。人有着双重属性,即自然人和社会人,人作为自然人,有着自己的生态位,，

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