Method for evaluating ecological safety of coastal zone

A technology of ecological security and evaluation method, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of lack of comprehensive and effective evaluation system in ecological security evaluation research.

Inactive Publication Date: 2018-02-09
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiencies and existing problems in the prior art, the present invention provides a coastal zone ecological security assessment method, which solves the lac...

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  • Method for evaluating ecological safety of coastal zone
  • Method for evaluating ecological safety of coastal zone
  • Method for evaluating ecological safety of coastal zone

Examples

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Embodiment 1

[0082] A practical application example is given below to specifically illustrate how to apply the present invention to evaluate coastal zone ecological security.

[0083] Tianjin is a representative city based on the development of the coastal zone. It is an important supporting city for the economic development of the Bohai Rim region. Human development activities are intense, and ecological and environmental problems are prominent. The present invention selects Tianjin as an application case and analyzes the coastal zone for 10 consecutive years. Evaluate the state of ecological security.

[0084] according to figure 2 The established coast zone ecological security evaluation index system collects the data of various indicators in Tianjin and performs dimensionless transformation, and uses the analytic hierarchy process and entropy value method to calculate the weight of each index. The calculation results are shown in Table 4.

[0085] Table 4 The weight of ecological sec...

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Abstract

The invention discloses a coastal zone ecological security evaluation method, comprising the following steps: 1. Screening coastal zone ecological security evaluation indicators based on marine health index and urban ecological security; 2. Constructing a coastal zone ecological security evaluation index system based on a PSR model; 3. Index data collection and dimensionless; 4. Analytic hierarchy process to determine the subjective weight of the evaluation index; 5. Entropy value method to determine the objective weight of the evaluation index; 6. Determine the comprehensive weight of each index; 7. Coastal ecological security index calculation and evaluation. The evaluation method of the present invention can well reflect under the background of rapid urbanization and industrialization and large-scale human development activities, the safety status of the ecological environment in the coastal zone and the main pressure factors it bears, and can provide a basis for the protection of the ecological environment in the coastal zone area in the future. and management provide a certain theoretical basis.

Description

technical field [0001] The invention relates to the technical field of coastal zone ecological security, in particular to an evaluation method for coastal zone ecological security. Background technique [0002] As a geographical unit where the marine system and the land system are connected, compounded and intersected, the coastal zone is the most frequent and concentrated area of ​​material, energy and information exchange. A base for marine development and a bond of foreign trade and cultural exchanges have very important economic, social and political values. With the rapid development of the economy and the acceleration of urbanization, the intensity of human development of the coastal zone is increasing. The coastal zone is not only exposed to risks such as storm surges and land subsidence, but also faces risks from large-scale and high-intensity human development activities. A series of ecological and environmental problems, such as the loss of coastal wetlands, the d...

Claims

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06393
Inventor 赵林侯亚琼乔治张文亮李净宸
Owner TIANJIN UNIV
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