Next Article in Journal
Exercise Addiction and Its Relationship with Health Outcomes in Indoor Cycling Practitioners in Fitness Centers
Next Article in Special Issue
Spatial Distribution and Environmental Significance of Phosphorus Fractions in River Sediments and Its Influencing Factor from Hongze and Tiaoxi Watersheds, Eastern China
Previous Article in Journal
Adaptation and Validation of the Scale of Types of Users in Gamification with the Spanish Adolescent Population
Previous Article in Special Issue
Data-Driven Modeling and the Influence of Objective Function Selection on Model Performance in Limited Data Regions
Article

A Sediment Diagenesis Model of Seasonal Nitrate and Ammonium Flux Spatial Variation Contributing to Eutrophication at Taihu, China

1
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
2
College of Environment, Hohai University, Nanjing 210098, China
3
College of Mechanics and Materials, Hohai University, Nanjing 210098, China
4
School of Geographical Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China
5
Binjiang College, Nanjing University of Information Science & Technology, No.333 Xishan Road, Wuxi 214105, China
6
College of Coastal, Harbor and Offshore Engineering, Hohai University, Nanjing 210098, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(11), 4158; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17114158
Received: 18 April 2020 / Revised: 5 June 2020 / Accepted: 6 June 2020 / Published: 11 June 2020
Algal blooms have thrived on the third-largest shallow lake in China, Taihu over the past decade. Due to the recycling of nutrients such as nitrate and ammonium, this problem has been difficult to eradicate. Sediment flux, a product of diagenesis, explains the recycling of nutrients. The objective was to simulate the seasonal spatial variations of nitrate and ammonium flux. In this paper, sediment diagenesis modeling was applied to Taihu with Environmental Fluid Dynamics Code (EFDC). Latin hypercube sampling was used to create an input file from twelve (12) nitrogen related parameters of sediment diagenesis and incorporated into the EFDC. The results were analyzed under four seasons: summer, autumn, winter, and spring. The concentration of NH4–N in the sediment–water column increased from 2.744903 to 22.38613 (g/m3). In summer, there was an accumulation of ammonium in the water column. In autumn and winter, the sediment was progressively oxidized. In spring, low-oxygen conditions intensify denitrification. This allows algal blooms to continue to thrive, creating a threat to water quality sustainability. The sediment diagenesis model, coupled with water quality measured data, showed an average relative error for Total Nitrogen (TN) of 38.137%, making the model suitable. Future studies should simulate phosphate flux and measure sediment fluxes on the lake. View Full-Text
Keywords: diagenesis; nitrate; ammonium; sediment flux; water quality; algae; sustainability diagenesis; nitrate; ammonium; sediment flux; water quality; algae; sustainability
Show Figures

Figure 1

MDPI and ACS Style

Sarpong, L.; Li, Y.; Norgbey, E.; Nwankwegu, A.S.; Cheng, Y.; Nasiru, S.; Nooni, I.K.; Setordjie, V.E. A Sediment Diagenesis Model of Seasonal Nitrate and Ammonium Flux Spatial Variation Contributing to Eutrophication at Taihu, China. Int. J. Environ. Res. Public Health 2020, 17, 4158. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17114158

AMA Style

Sarpong L, Li Y, Norgbey E, Nwankwegu AS, Cheng Y, Nasiru S, Nooni IK, Setordjie VE. A Sediment Diagenesis Model of Seasonal Nitrate and Ammonium Flux Spatial Variation Contributing to Eutrophication at Taihu, China. International Journal of Environmental Research and Public Health. 2020; 17(11):4158. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17114158

Chicago/Turabian Style

Sarpong, Linda, Yiping Li, Eyram Norgbey, Amechi S. Nwankwegu, Yue Cheng, Salifu Nasiru, Isaac K. Nooni, and Victor E. Setordjie 2020. "A Sediment Diagenesis Model of Seasonal Nitrate and Ammonium Flux Spatial Variation Contributing to Eutrophication at Taihu, China" International Journal of Environmental Research and Public Health 17, no. 11: 4158. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph17114158

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop