珲春市农村居民点时空变化及驱动因素分析

Analysis of spatiotemporal changes and factors driving rural settlements in Hunchun city

掌握不同地貌类型下农村居民点的空间特征,是合理安排农村居民点布局的基础。以珲春市为研究区,运用核密度估计、空间集聚性分析法,对珲春市农村居民点分布特征及其影响因素进行了分析。结果表明:(1)珲春市农村居民点呈现出以西南部为密集中心向四周放射性发散逐渐变为稀疏分布的空间特征。(2)珲春市大规模集聚的农村居民点向西南部集中趋势明显,密度高的农村居民点在空间上呈现大规模集聚特征,密度低的农村居民点在空间上通常表现为小规模集聚。(3)农村居民点的低高程、低坡度指向性,靠近河流、靠近道路分布的空间特征并没有大的变化,但是行政驻地对农村居民点的吸引聚集特征有所显现。

The aim of this study is to determine the spatial characteristics of rural settlements under different geomorphology, which is the basis for the appropriate establishment of rural settlements. Our study area is Hunchun city in the Jilin province. We analyze the distribution characteristics and influencing factors of rural settlements in Hunchun city by kernel density estimation and spatial agglomeration analysis. The results show that,(1) the rural settlements in Hunchun city spatially show a feature of gradually becoming sparsely distributed, with the center of concentration in the southwest,(2) the large-scale concentration of rural settlements is apparent in the southwest, where the high-density rural settlements are characterized by a large-scale concentration in space, and the low-density rural settlements are generally characterized by a small-scale concentration in space and,(3) there are no major changes in spatial characteristics, such as low elevation, low gradient directivity, proximity to rivers and roads. We demonstrate the attraction to and aggregation of characteristics of administrative stations to rural settlements.