基于聚落演变的岩溶山地聚落体系空间结构整合——以后寨河地区为例

Spatial Structure Integration of Rural Settlements in Karst Mountains Based on Settlement′s Evolution:A Case of Houzhaihe Area

基于高精度遥感影像和实地调查数据,选择黔中高原的典型岩溶山地普定县后寨河流域,探讨了1963～2010年岩溶山地的聚落和人口变迁,建立了基于聚落规模等级发展变迁和人口密度空间分布的乡村聚落发展适宜性和聚落整治类型评价方法。研究区大聚落和较大聚落主要分布在耕地条件和交通条件较好的中部峰丛洼地区东、西两侧,人口密度高值中心对应的往往是大聚落等级。研究区聚落可划分为重点村镇型、优先发展型、有条件扩展型、限制扩展型和迁弃型5类。

Investigating the reconstruction and integration method of the karst mountain settlement spatial structure has important practical significance, as it promotes the trend of intensification development of rural residential land and the construction of new socialist countryside. The Houzhaihe area which is a typical karst mountain located in the Puding County of the Guizhou Plateau was selected as study area in this study. Having adopted high resolution remote sensing images and field investigation data, this article probed into the population change in karst mountain settlements in 1963-2010. The rural settlements development suitability evaluation method and settlement control type were developed based on the settlement scale development and the population density spatial distribution of the study area. Large settlement and larger settlement were mainly distributed in both sides of the east and west of the central peak-cluster depression area which with better land conditions and traffic conditions in the study area. The high value center of population density is of the corresponding level tend to be large settlements which are apart from each other. The settlements in the study area can be divided into 5 classes, namely, key villages and towns, prior development, conditional priority to expand, restricted extension type and abandoning type. The results in this study may serve as cases of the karst mountain settlement space reconstruction and integration.