Assessing hydrodynamic effects of ecological restoration scenarios for a tidal-dominated wetland in Liaodong Bay (China)

The Science of the Total Environment
Xiuzhong LiZhiqiang Tan

Abstract

Estuarine wetlands have experienced a variety of ecological and environmental problems caused by natural and anthropogenic factors. China has proposed a series of measures and made great efforts to control coastal degradation; however, decision makers still urgently need to know which measures to implement and how they will influence the estuarine environment and functions. This study used field observations, a hydrodynamic model, and statistical methods to investigate the effects of potential restoration scenarios on hydrodynamic conditions in the tidal-influenced estuarine wetland system, Liaodong Bay (China). Results reveal that the average total phosphorus, organic carbon, available phosphorus, pH, total nitrogen content, and moisture content in the soil and sediment environment were 0.04 ± 0.003%, 0.84 ± 0.25%, 16.3 ± 4.7 mg/kg, 8.3 ± 0.1, 0.07 ± 0.02%, and 44 ± 2%, respectively, exhibiting an overall trend of degradation. A series of restoration scenarios in regards to hydrodynamic regulation and tidal inputs were used to preserve the ecological value of the estuarine wetland. Model simulations indicate that the significant improvement of hydrodynamic fields (inundation depth and flow velocity) is more likely to occur whe...Continue Reading

References

Mar 18, 2011·Nature·Zhenguo NiuPeng Gong
Dec 7, 2013·Nature·Stijn TemmermanHuib J De Vriend
Dec 5, 2014·Nature·Liviu GiosanJohn Day
May 22, 2016·Journal of Environmental Management·Lance H GundersonAhjond S Garmestani
Nov 30, 2019·The Science of the Total Environment·Yunliang LiJing Yao

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Citations

Jan 25, 2021·The Science of the Total Environment·Wanqing QianQiang He

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