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Water Environmental Capacity Analysis of Taihu Lake and Parameter Estimation Based on the Integration of the Inverse Method and Bayesian Modeling

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  • Ranran Li

    (School of Economics and Management, Beihang University, Beijing 100191, China)

  • Zhihong Zou

    (School of Economics and Management, Beihang University, Beijing 100191, China)

Abstract

An integrated approach using the inverse method and Bayesian approach, combined with a lake eutrophication water quality model, was developed for parameter estimation and water environmental capacity (WEC) analysis. The model was used to support load reduction and effective water quality management in the Taihu Lake system in eastern China. Water quality was surveyed yearly from 1987 to 2010. Total nitrogen (TN) and total phosphorus (TP) were selected as water quality model variables. Decay rates of TN and TP were estimated using the proposed approach. WECs of TN and TP in 2011 were determined based on the estimated decay rates. Results showed that the historical loading was beyond the WEC, thus, reduction of nitrogen and phosphorus input is necessary to meet water quality goals. Then WEC and allowable discharge capacity (ADC) in 2015 and 2020 were predicted. The reduction ratios of ADC during these years were also provided. All of these enable decision makers to assess the influence of each loading and visualize potential load reductions under different water quality goals, and then to formulate a reasonable water quality management strategy.

Suggested Citation

  • Ranran Li & Zhihong Zou, 2015. "Water Environmental Capacity Analysis of Taihu Lake and Parameter Estimation Based on the Integration of the Inverse Method and Bayesian Modeling," IJERPH, MDPI, vol. 12(10), pages 1-13, September.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:10:p:12212-12224:d:56522
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    References listed on IDEAS

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    1. M. Saadatpour & A. Afshar, 2007. "Waste load allocation modeling with fuzzy goals; simulation-optimization approach," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(7), pages 1207-1224, July.
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    Cited by:

    1. Huiyu Jin & Wanqi Chen & Zhenghong Zhao & Jiajia Wang & Weichun Ma, 2022. "New Framework for Dynamic Water Environmental Capacity Estimation Integrating the Hydro-Environmental Model and Load–Duration Curve Method—A Case Study in Data-Scarce Luanhe River Basin," IJERPH, MDPI, vol. 19(14), pages 1-23, July.

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