PSR-FCCLP model based total maximum allocated loads optimization of TN and TP in Bohai Bay

Eutrophication is a global problem for coastal ecosystems, one that Bohai Bay, China, has been severely afflicted due to rapid economic and social development in the past decades. It was urgent to manage the total maximum allocated loads (TMALs) of the total nitrogen (TN) and total phosphorus (TP) o...

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Published in:Marine pollution bulletin Vol. 185; no. Pt A; p. 114249
Main Authors: Gu, Rui, Xu, Yan, Li, Zhaoguang, Jian, Shan, Tu, Jianbo, He, Shu, Sun, Jun
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.12.2022
Subjects:
China
Environmental management
eutrophication
Fuzzy credibility constrained programming
marine pollution
Pressure-state-response model
Total maximum allocated loads
total nitrogen
total phosphorus
China
Pressure-state-response model
Fuzzy credibility constrained programming
Total maximum allocated loads
Environmental management
ISSN:0025-326X, 1879-3363, 1879-3363
Online Access:Get full text
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Summary:Eutrophication is a global problem for coastal ecosystems, one that Bohai Bay, China, has been severely afflicted due to rapid economic and social development in the past decades. It was urgent to manage the total maximum allocated loads (TMALs) of the total nitrogen (TN) and total phosphorus (TP) on land-based, which was closely related to coastal eutrophication. In this study, from the perspective of economy-resources-environment (ERE) system, we presented the fuzzy credibility constrained linear programming based on pressure-state-response (PSR-FCCLP) model, which calculated the TMALs of TN and TP at three credibility levels (λ = 0.55, 0.75, and 0.95) in Bohai Bay. The results showed that when the credibility level increased from 0.55 to 0.95, the TMALs of TN and TP would decrease from 13,573.38 t/a to 12,820.00 t/a and from 2665.58 t/a to 2514.90 t/a, respectively. This study will provide support for environmental management in coastal regions. •Proposing the pollutant interception coefficient (PIC) of coastal cities.•Establishing an optimization model based on economy-resources-environment system.•Considering three credibility levels in the calculation of the optimization model.•Managing the total maximum allocated loads of TN and TP in Bohai Bay, China.
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ISSN:0025-326X
1879-3363
1879-3363
DOI:10.1016/j.marpolbul.2022.114249