以平原村镇香河县、山地村镇密云县和水乡村镇昆山市为研究区, 分析了村镇空间结构的特征。建立基于网格的村镇选址及空间范围模型, 采用GIS空间分析和建模技术实现; 此外, 空间范围模型根据泰森多边形模型的思想, 提出用土地效益的概念代替距离来确定村镇的空间范围。由于考虑因素更全面, 更具体, 这两个模型可以更好地为村镇的选址与空间范围的确定提供参考。此研究为村镇规划工作提供帮助。
At present, the formation, evolution and simulation of spatial structure of village and small town are becoming the focus in the fields of geography, planning, remote sensing science, geographic information science and other related disciplines, which also receives the close attention of the management. In this study, we take Xianghe County of plain, Miyun County of mountainous area and Kunshan City of aqueous area for examples where characteristic analysis of village and small town spatial structure is carried out. The location and spatial scope models of village and small town based on grid are established, which is carried out with the help of GIS spatial analysis and modeling technology. In addition, according to Tyson polygon model, a new idea is brought forward that the spatial range of village and small town is determined by land-benefit instead of distance. The two models can provide reference for location and scope determination of village and small town because the factors are more comprehensive and more specified. This research can provide help for the planning of village and small town.