地理学报

Acta Geographica Sinica ›› 2008, Vol. 63 ›› Issue (1): 75-82.doi: 10.11821/xb200801008

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The Effect of Landform on Landscape Pattern Vertical Differentiation in Rapidly Urbanized Shenzhen City

BU Xinguo1,2, WANG Yanglin1, WU Jiansheng1   

  1. 1. College of Urban and Environment Science of Peking University, Beijing 100871, China;
    2. Land Survey and Planning Institute of Jiangsu Province, Nanjing 210024, China
  • Received:2007-05-14 Revised:2007-09-20 Online:2008-01-25 Published:2008-01-25
  • Supported by:

    National Natural Science Foundation of China, No.40635028

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Abstract:

Based on the theory of RS and GIS, the thesis focuses on the effect the topography has on the landscape pattern of a city and makes a dynamic analysis of the landscape pattern from space-time angles.The paper shows that in the rapid process of urbanization, the whole dynamic characteristic landscape pattern is influenced by landforms, while the method of taking advantage of the urban land is influenced by different topographic features. Because of the degree of influence of human activities on landscape declines with the raising of hypsography, during the initial stage of urbanization, the lower and more smooth region intersects with farm landscape and city landscape where the diversity is higher, which result in the Yantian District in Shenzhen where mountainous regions are the majority had the lower level of landscape diversity index, while the landscape diversity index of Futian District where the topography is smooth had higher ones. However, with the quickening up of the urbanization, landscape diversity in Futian District decreases quickly because of most of the farm landscape changing into city landscape, but the index of Yantian District decreases slightly, and that of Longgang District even increases. The index time development curve there presented an "anti-U" shaped pattern which is almost similar to Kuznets curves. The index that has changed for a long time at hand in elevation belt and slope shows two situations: firstly, in the perpendicular space, the characteristic of landscape diversity index, the "anti-U" shaped curve, cannot form until urbanization reaching to some extent, what's more, the characteristic will tend to be more obvious and stable eventually with the furthering of the urbanization. Secondly, in time, the characteristic of low height and low slope diversity index also presents the "anti-U" shaped curve which is similar to Kuznets curves, and with the furthering of the urbanization, both of height and slope will move upward.

Key words: landscape pattern, vertical dynamic, rapid urbanization region, RS&GIS, Shenzhen 82