• ISSN 0258-2724
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Volume 29 Issue 5
Oct.  2016
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Journal of Southwest Jiaotong University  > 2016  >  29(5): 951-957.
HUANG Rui, SHEN Zhongwei. New Landscape Indexes to Quantify Spatial Patterns of Urban Roofs[J]. Journal of Southwest Jiaotong University, 2016, 29(5): 951-957. doi: 10.3969/j.issn.0258-2724.2016.05.019
Citation: HUANG Rui, SHEN Zhongwei. New Landscape Indexes to Quantify Spatial Patterns of Urban Roofs[J]. Journal of Southwest Jiaotong University, 2016, 29(5): 951-957. doi: 10.3969/j.issn.0258-2724.2016.05.019
shu

New Landscape Indexes to Quantify Spatial Patterns of Urban Roofs

doi: 10.3969/j.issn.0258-2724.2016.05.019
  • Received Date: 11 Jul 2015
  • Publish Date: 25 Oct 2016
    Abstract
  • A prerequisite to establish the interrelation between the urban landscape pattern and ecological process is to make a quantitative description of roof landscape patterns. Taking roof area and isolation factor into account, three measuring indexes are constructed by the theory of island biography. Of them, the minimum height (MIH) measures the contact or segregation between the building roof plaque and the ground; the accessibility index (ACI) reflects the possibility for living creatures to reach the roof from the ground, stay and even inhabit here; and the resistance index (RI) measures the difficulty of biological and other ecological factors in flowing and inhabiting on the ground and within the roof area. Empirical studies and correlation analysis results show that the three index values are within the defined range; there is a strong negative correlation between MI and ACI; MIH and RI, as well as ACI and RI, are relatively independent. The use of landscape indices in scientific planning of ecological networks can effectively increase landscape connectivity.

     

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