岷江上游居民点分布格局及影响因子分析

为了研究岷江上游居民点格局及其影响因子，利用1：25万基础地理信息数据和统计数据，在G1S的支持F，对居民点空间格局以及影响因子进行了较为深入的研究。结果表明：（1）研究区大散居、小聚居的农村居民点特征显著。（2）居民点分布主要集中在河流与道路的两侧，属于典型的高山峡谷地带居民点分布；居民点离散特征不显著。（3）居民点分布与海拔存在一种非线性的关系。研究成果为进一步分析人口的分布格局与人口数据空间化；实现生态避耕，区域景观格局优化以及区域可持续发展提供重要的依据。

Analysis of distribution patterns and influence factors in up reaches of Min River

The upper reaches of Min River is one of most important source areas for Yangtze River.It is important to study the distribution and its influencing factors of rural settlement for analyzing the population distributed patterns.1:250000 foundations geographical information data and statistical data of study area were employed by ARC/GIS9.0 system supporting.The results show,1)Rural settlements are the primarily form with characteristics of lives scattered greatly and lives together slightly.2)The rural settlement distribution mainly concentrates in the rivers and the roads two sides of road.The distance is contiguous between the rural settlements,there is 72.86% rural settlement distributing from 1.00km to 2.5km.3)The distribution of the rural settlement is affected directly by the rivers and the roads which 97.55 % of rural settlements is 1.5km away from rivers.The results are the key proof for optimizing landscape pattern and carrying out the policies of regional sustainable development.