以都江堰市为研究区域，将G IS技术和空间数据分析方法相结合，在定量研究都江堰市农村居民点空间分布格局和动态演变规律的基础上，选取景观格局指数对影响其布局特征的因素进行深入分析。研究结果表明：2005年都江堰市农村居民点的空间分布整体上呈现聚集分布的态势，而2012年则倾向于分散趋势；随着空间尺度的增加，2005年和2012年农村居民点的空间分布都经历了一个集聚程度不断增加，然后缓慢下降，直到转为分散模式的过程；地形、道路和河流对农村居民点的布局有显著影响，超过80％的农村居民点分布在1～2级地形位上，超过60％的农村居民点分布在距河流1 km的范围内，近70％的农村居民点与道路的距离在1 km以内；都江堰市农村居民点正在由数量多、用地大、规模小向数量少、用地小和规模大的集约高效利用方式转变。%Integrating GIS technology and spatial data analysis methods ,and based on the quantitative study of the spatial distribution pattern and dynamic evolution process of rural residential areas in Dujiangyan City ,Sichuan Province ,this paper uses landscape metrics to deeply analyze the factors that influence the distribution characteristics of the rural residential areas in this city .The results show that the overall spatial distribution of rural residential areas in Dujiangyan City was clustered in 2005 while it became more scattered in 2012 ,and that along with the increase of spatial scale ,the spatial distribution in 2005 and 2012 went through a process in which the level of clustering increased first and then decreased gradually until it became scattered .The results also indicate that landforms ,road networks and rivers are all important factors influencing the pattern of rural residential areas . For example , more than 80% of the residential areas are scattered in the areas of level I and II landforms ,more than 60% are distributed within 1 kilometer from the river ,and approximately 70% are within 1 kilometer from the road .The land use of such rural residential areas in Dujiangyan City have transformed from the pattern of large quantity ,large land use ,and small scale to an intensive and high efficiency pattern of small quantity ,less land use ,and large scale .
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