Experimental study of wind-induced sediment suspension and nutrient release in Meiliang Bay of Lake Taihu, China

Environmental Science and Pollution Research International
Jianjian WangJin Luo

Abstract

Wind-induced sediment suspension and nutrient release is an important source for shallow eutrophic lakes. This work studies the quantitative relationship between wind speed and sediment release rate in Meiliang Bay of Lake Taihu, China, using field observations and indoor simulations. Natural wind, water flow, and water quality conditions were synchronously monitored to establish the relationship between wind speed and sediment release rate. Sediment suspension processes under different wind speeds were also simulated in a specially designed reactor. We then established the relationship between natural wind speed and indoor-simulated sediment release rate through hydrodynamic conditions (expressed using water shear stress). The indoor experiment was a supplement to the field observations. The results showed that (1) the critical wind speeds at which sediment became suspended and demonstrated maximum suspension were approximately 3-4 and 8 m s(-1), respectively; (2) the relationship between wind speed and suspended sediment (SS), total nitrogen (TN), and total phosphorous (TP) release rate could be expressed by exponential functions (SS release rate: y = 1.287e(0.177x) , R (2) = 0.981; TN release rate: y =  7.55e(0.363x), R (2) ...Continue Reading

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Citations

Apr 5, 2016·Environmental Science and Pollution Research International·Guanyi YinJin Sun
Jun 16, 2017·Environmental Science and Pollution Research International·Abdul JalilKumud Acharya
Oct 29, 2018·Environmental Science and Pollution Research International·Wenhao DingHan Wang
Sep 1, 2019·Environmental Science and Pollution Research International·Haomiao ChengXiaohong Jiang
Aug 30, 2020·Environmental Science and Pollution Research International·Xue GengPeirong Sun
Jan 8, 2021·Environmental Science and Pollution Research International·Xi ChenChun Ye
Feb 24, 2021·Environmental Science and Pollution Research International·Yihui ZhangYuemin Hu
Jun 3, 2021·International Journal of Environmental Research and Public Health·Min PangYong Pang

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