Regional structure and spatial morphology characteristics of oasis urban agglomeration in arid area —A case of urban agglomeration in northern slope of Tianshan Mountains, Northwest China
Regional structure and spatial morphology characteristics of oasis urban agglomeration in arid area —A case of urban agglomeration in northern slope of Tianshan Mountains, Northwest China
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DOI：
10.1007/s11769-009-0341-4
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发表时间：
2009-10
影响因子：
3.4
通讯作者：
Yufang Zhang;Degang Yang;Xinhuan Zhang;Wen Dong;Xiaolei Zhang
中科院分区：
文献类型：
--
作者：
Yufang Zhang;Degang Yang;Xinhuan Zhang;Wen Dong;Xiaolei Zhang
正确认识城市群地域结构的形成和发展规律，对城市群的健康发展具有重要意义。运用分形理论和定量统计等分析方法，结合遥感影像和其他空间数据，对干旱区天山北方绿洲城市群1990 - 2005年的城市规模、空间分布和个体形态进行了研究。结果表明，该地区等级规模结构松散，人口分布呈两极分化趋势，等级规模结构趋于成熟。在自然条件的影响下，绿洲城市群的空间布局具有沿着绿洲边缘分布（密集或稀疏）、沿着河流空间扩展、沿交通支路集聚的宏观特征。城市间的连通性较高，呈带状分布的内部组织形式。城市内部结构的整体空间形态呈“哑铃”状，单核现象消退，多核现象逐渐显现。单个城市在空间上沿着扩展，呈现长条状形态。结果表明，绿洲城市群呈现出规则、紧密的结构，但有向复杂化、松散化发展的趋势。在城市群的发展中，应加强对经济发展条件较好的城市的发展，重视区域规划。
It is great important to the health development of urban agglomeration to correctly understand the formation and development law of regional structure of urban agglomeration. Employing the analysis methods like fractal theory and quantitative statistics, coupling with the use of remote sensing images and other spatial data, this article discusses the urban agglomeration of oasis on the northern slope of the Tianshan Mountains in an arid area, and conducts the researches on its city scale, spatial distribution and individual form from 1990 to 2005. The result shows that it has loose hierarchical scale structure and polarization trend of population distribution while its hierarchical scale structure tends to mature. Under the influence of natural conditions, the spatial layout of urban agglomeration of oasis has macro characteristics that suggest cities distributed along oasis edges (dense or sparse), spatially expand along rivers, and cluster around traffic branches. The connectivity among the cities is high and shows an internal organization form of a banding distribution. The whole spatial shape of the internal structure of cities presents a “dumbbell” form, with mononuclear phenomenon receding and multi-nuclear appearing gradually. Individual cities spatially expand along rivers, portraying a long strip appearance. It indicates that the urban agglomeration of oasis shows regular and close structure but with a tendency to be complicated form and the loose structure. In the development of urban agglomeration, the authors recommend that the development of the city with good economic development conditions should be strengthened, and more attention be put into regional planning.