Urban ecological network structure toughness dynamic simulation method

A dynamic simulation and network structure technology, applied in the field of geographic information, can solve the problems of lack of quantitative analysis methods for network stability and few studies on structural resilience

Active Publication Date: 2021-06-01
SHENZHEN UNIV
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Problems solved by technology

[0004] Aiming at the above-mentioned defects of the prior art, the present invention provides a dynamic simulation method for urban ecological network structural resilience, which aims to solve the proble

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  • Urban ecological network structure toughness dynamic simulation method
  • Urban ecological network structure toughness dynamic simulation method
  • Urban ecological network structure toughness dynamic simulation method

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[0049] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill i...

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Abstract

The invention discloses an urban ecological network structure toughness dynamic simulation method. The method comprises the following steps: constructing an urban ecological network according to species survey point data, remote sensing image data, water area wetland survey data and building height data; according to the importance index value corresponding to each source node in the urban ecological network, performing iterative removal on each source node according to a preset proportion, and determining toughness index values corresponding to the urban ecological network under different removal proportions; and determining an survivability threshold value corresponding to the urban ecological network according to the toughness index value. According to the invention, selection attack is carried out on each source-ground node according to the importance index value of each source-ground node in the urban ecological network and the preset proportion, and the toughness index values and the survivability thresholds corresponding to the urban ecological network under different removal proportions are determined, so that key source-ground nodes in the urban ecological network can be identified; the method is of great significance in maintaining ecological system stability and urban ecological safety.

Description

technical field [0001] The invention relates to the technical field of geographic information, in particular to a dynamic simulation method for urban ecological network structure resilience. Background technique [0002] Ecological network refers to the spatial organization system that can identify the characteristics of linear ecological corridors in a specific scale space, effectively connect various ecological patches, and reflect the combination rules of spatial elements and structural and functional characteristics. Ecological network structural resilience reflects the persistence of ecosystems in response to ecosystem changes caused by natural or human factors, and the study of ecological network structural resilience is of great significance for maintaining its normal functioning. Using graph theory and landscape ecology theories and methods to analyze the pattern and resilience of ecological space networks is a commonly used research method. The research objects of u...

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Application Information

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IPC IPC(8): G06F30/13G06F30/18G06Q10/04G06Q50/26
CPCG06Q10/047G06Q50/26G06F30/13G06F30/18
Inventor 洪武扬郭仁忠王伟玺苏墨
Owner SHENZHEN UNIV
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