Abstract
Eutrophication is the most widespread water quality issue globally. To date, most efforts to control eutrophication have focused on reductions of external nutrient inputs, yet importance of nutrient stoichiometry and subsequent shift in plankton composition in aquatic ecosystem has been largely neglected. To address eutrophication, improved sanitation is one of the United Nations Sustainable Development Goals, spurring the constructions of wastewater treatment facilities that have improved water quality in many lakes and rivers. However, control measures are often targeted at and effective in removing a single nutrient from sewage and thus are less effective in removing the others, resulting in the changes of nutrient stoichiometry. In general, more effective phosphorus removal relative to nitrogen has occurred in wastewater treatment leading to substantial increases in N/P ratios in effluent relative to the influent. Unfortunately, high N/P ratios in receiving waters can impose negative influences on ecosystems. Thus, long-term strategies for domestic wastewater management should not merely focus on the total reduction of nutrient discharge but also consider their stoichiometric balances in receiving waters.
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References
Carlson R E, Simpson J (1996). A Coordinator’s Guide to Volunteer Lake Monitoring Methods. Washington, DC: North American Lake Management Society, 96
Elser J J, Devlin S P, Yu J, Baumann A, Church M J, Dore J E, Hall R O, Hollar M, Johnson T, Vick-Majors T, White C (2022). Sustained stoichiometric imbalance and its ecological consequences in a large oligotrophic lake. Proceedings of the National Academy of Sciences of the United States of America, (in press)
Elser J J, Fagan W, Denno R, Dobberfuhl D, Folarin A, Huberty A, Interlandi S, Kilham S, McCauley E, Schulz K, Siemann E, Sterner R (2000). Nutritional constraints in terrestrial and freshwater food webs. Nature, 408(6812): 578–580
European Environment Agency (2018). European Waters: Assessment of Status and Pressures 2018. Copenhagen: European Environment Agency
Guildford S, Hecky R (2000). Total nitrogen, total phosphorus, and nutrient limitation in lakes and oceans: Is there a common relationship? Limnology and Oceanography, 45(6): 1213–1223
Hellweger F L, Martin R M, Eigemann E, Smith D J, Dick G J, Wilhelm S W (2022). Models predict planned phosphorus load reduction will make Lake Erie more toxic. Science, 376(6596): 1001–1005
Huisman J, Codd G A, Paerl H, Ibelings B, Verspagen J H, Visser P M (2018). Cyanobacterial blooms. Nature Reviews. Microbiology, 16(8): 471–483
Loladze I, Elser J J (2011). The origins of the redfield nitrogen-to-phosphorus ratio are in a homoeostatic protein-to-RNA ratio. Ecology Letters, 14(3): 244–250
Peñuelas J, Janssens I A, Ciais P, Obersteiner M, Sardans J (2020). Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health. Global Change Biology, 26(4): 1962–1985
Peñuelas J, Sardans J (2022). The global nitrogen-phosphorus imbalance. Science, 375(6578): 266–267
Rice J, Westerhoff P (2017). High levels of endocrine pollutants in US streams during low flow due to insufficient wastewater dilution. Nature Geoscience, 10(8): 587–591
Sterner R, Elser J (2002). Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere. Princeton: Princeton University Press
Tong Y, Zhang W, Wang X, Couture R M, Larssen T, Zhao Y, Li J, Liang H, Liu X, Bu X, et al. (2017). Decline in Chinese lake phosphorus concentration accompanied by shift in sources since 2006. Nature Geoscience, 10(507): 507–511
Tong Y, Wang M, Penuelas J, Liu X, Paerl H W, Elser J J, Sardans J, Couture R M, Larssen T, Hu H, et al. (2020). Improvement in municipal wastewater treatment alters lake nitrogen to phosphorus ratios in populated regions. Proceedings of the National Academy of Sciences of the United States of America, 117(21): 11566–11572
Van de Waal D, Smith V H, Declerck S A J, Stam E, Elser J J (2014). Stoichiometric regulation of phytoplankton toxins. Ecology Letters, 17(6): 736–742
Wang Z, Shao D, Westerhoff P (2017). Wastewater discharge impact on drinking water sources along the Yangtze River (China). Science of the Total Environment, 599–600: 1399–1407
Yan Z, Han W, Peñuelas J, Sardans J, Elser J, Du E, Reich P, Fang J (2016). Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts. Ecology Letters, 19(10): 1237–1246
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This study was funded by the National Natural Science Foundation of China (Nos. 42122059 and 41977324) and the Natural Science Foundation of Tianjin (No. 20JCYBJC01080).
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Tong, Y., Wang, X. & Elser, J.J. Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological consequences. Front. Environ. Sci. Eng. 16, 149 (2022). https://doi.org/10.1007/s11783-022-1584-x
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DOI: https://doi.org/10.1007/s11783-022-1584-x