【摘要】 针对黄土高原沟壑区城镇化进程加快和水土流失等严重问题,基于当代人口分布的“塬面化”发展趋势,通过分析城镇体系组织结构与地形地貌关系,提出了以“黄土塬”为城镇体系协调单元的构想,并对协调单元的内涵进行了阐述。结合延安地区洛川县永乡塬单元,探讨了协调单元中城镇体系发展的适宜空间和城镇体系空间结构布局的原则,并运用景观生态学“斑块-廊道-基底”原理和方法提出了城镇体系协调发展的“大分散、大聚集”基本模式、树枝形多中心组团和均衡增长的类型模式。更多还原

【Abstract】 In view of the loess plateau gully area cities advancement with the soil erosion serious problem,based on present age population distribution "plateau surface" development tendency,authors started with analysis of the relationship between the urban spatial structure and the topography and proposed the idea of taking "loess tablelands" as the coordinating units of the urban system by giving consideration to the trend of people gathering on tablelands.Authors probed into the suitable space of urban development in coordinating units and proposed the "big scattering and big gathering" and the branch shape multi-centers organizing group with the balanced-growth type pattern model for balance development of the urban system by applying the principle "patch-corridor-matrix".更多还原