成都平原乡村聚落形态时空演变特征及驱动机制研究——以郫都区宝光寺区域为例

Spatial-temporal Evolution Characteristics and Driving Mechanisms of Rural Settlements in Chengdu Plain:A Case Study of Baoguang Temple Area,Pidu District

厘清乡村聚落时空演变特征及驱动机制对于乡村聚落空间格局优化具有科学参考意义。研究运用景观格局指数及GIS空间分析等方法,剖析了1980年—2010年成都平原"林盘"聚落时空演变特征及内在机制。结果表明:(1)乡村聚落空间总体上呈现小规模、无序化、集聚化的格局特征,传统聚落空间分布对农田、河流等生产要素的依存度较高,而现代聚落空间分布对道路交通以及区位关系的依存度较高;(2)通过层次分析法确定权重分析,区位条件对乡村聚落形态演变影响最为显著,社会经济次之;(3)乡村聚落空间演变是诸多因素综合作用的结果,时空序列上各影响因子作用不同。以期为乡村规划与聚落空间格局优化提供参考。

The clarification of the spatio-temporal evolution of rural settlements and the driving mechanism has scientific reference for the optimization of the spatial pattern of rural settlements.Using landscape pattern index and GIS spatial analysis,we analyze the temporal and spatial evolution of the"forest pan"settlement in the Chengdu Plain from 1980 to 2010 and its internal mechanism.The results show that:(1)the spatial distribution of rural settlements in general shows the characteristics of small-scale,disorderly and clustered patterns,with the traditional spatial distribution of settlements having a higher dependence on factors of production such as farmland and rivers,while the modern spatial distribution of settlements has a higher dependence on road traffic and location relationships.(2)Through the hierarchical analysis method to determine the weight analysis,location conditions have the most significant influence on the evolution of rural settlement morphology,followed by socio-economic.(3)The spatial evolution of rural settlements is the result of the combined effect of many factors,with different effects of different factors in the time series,so as to provide a reference for village planning and optimization of the spatial pattern of settlements.