Application of Cloud Theory and Set Pair Analysis Coupled Model for Evaluating Environmental Carrying Capacity in Tianjin

Abstract:

Following the development of national economy, environmental pollution and ecological hazards has been resulted from the pollutant discharge and reclamation etc. So it is very important for evaluating the environmental carrying capacity for guiding the environmental management and control. In this paper, a systematic assessment model with detailed procedure for environmental carrying capacity is proposed, based on the combination of set pair analysis method and cloud theory. The membership degree function obtained from bell function in cloud theory is used for connection degree function in set pair analysis method. The normalization means of membership degree has advantageous of improving the reasonability of membership space. The calibration results of case study work well in Tianjin Binhai New District. This shows the coupled model has advantages of concision, easy-operation and high precision of set pair analysis method, and the randomness and ambiguity of assessment indexes’ membership can be reflected in the assessment procedure by using the cloud theory, so the assessment results are reliable and practical significance.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 377-381
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.377
• Online since: October 2014
• Authors: Qi Si, Ming Chang Li*
• Keywords: Cloud Theory, Coupled Model, Environmental Carrying Capacity, Evaluate, Set Pair Analysis (SPA)

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