Abstract
There is no doubt that hypoxia and seawater mixture are profoundly affecting the global nitrogen (N) cycle. However, their mechanisms for altering N cycling patterns in shallow coastal groundwater are largely unknown. Here, we examined shallow groundwater N transformation characteristics (dissolved inorganic N and related chemical properties) in the coastal area of east and west Shenzhen City. Results showed that common hypoxic conditions exist in this study area. Ions/Cl− ratios indicated varying levels of saltwater mixture and sulfide formation across this study area. Dissolved oxygen (DO) affects the N cycle process by controlling the conditions of nitrification and the formation of sulfides. Salinity affects nitrification and denitrification processes by physiological effects, while sulfide impacts nitrification, denitrification, and dissimilatory nitrate reduction to ammonium (DNRA) processes through its own toxicity mechanism and the provision of electron donors for DNRA organisms. Redundancy analysis (RDA) results indicate that the influence magnitude is in the following order: DO > sulfide > salinity. Seawater mixture weakened the nitrification and denitrification of groundwater by changing salinity, while hypoxia and its controlled sulfide formation not only weaken nitrification and denitrification but also stimulated the DNRA process and promotes N regeneration. In this study area, hypoxia is considered to exert greater impacts on N cycling in the coastal shallow groundwater than seawater mixture. These findings greatly improve our understanding of the consequences of hypoxia and seawater mixture on coastal groundwater N cycling.
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References
An S, Gardner WS (2002) Dissimilatory nitrate reduction to ammonium (DNRA) as a nitrogen link, versus denitrification as a sink in a shallow estuary (Laguna Madre/Baffin Bay, Texas). Mar Ecol Prog Ser 237:41–50. https://doi.org/10.3354/meps237041
APHA (2005) Standard methods for the examination of water and wastewater, 21st edn. American Public Health Association, Washington DC, p 1220
Appelo CAJ, Postma D (2005) Geochemistry, groundwater and pollution. Amsterdam,Netherlands
Bernhard AE, Donn T, Giblin AE, Stahl DA (2005) Loss of diversity of ammonia-oxidizing bacteria correlates with increasing salinity in an estuary system. Environ Microbiol 7:1289–1297
Chutivisut P, Isobe K, Powtongsook S, Pungrasmi W, Kurisu F (2018) Distinct microbial community performing dissimilatory nitrate reduction to ammonium (DNRA) in a high C/NO3− reactor. Microbes Environ 33:264–271
Verstraete W, Focht DD (1977) Biochemical ecology of nitrification and denitrification. In: Alexander M (ed) Advances in microbial ecology. Advances in microbial ecology, vol 1. Springer, Boston. https://doi.org/10.1007/978-1-4615-8219-9_4
Francis CA, O’Mullan GD, Ward BB (2003) Diversity of ammonia monooxygenase (amoA) genes across environmental gradients in Chesapeake Bay sediments. Geobiology 1:129–140. https://doi.org/10.1046/j.1472-4669.2003.00010.x
Freitag TE, Chang L, Prosser JI (2006) Changes in the community structure and activity of betaproteobacterial ammonia-oxidizing sediment bacteria along a freshwater–marine gradient. Environ Microbiol 8:684–696. https://doi.org/10.1111/j.1462-2920.2005.00947.x
Fu T, Qi C, Wang Z, Li C, Liu W, Fu Y, Chen G, Su Q, Xu X, Yu H (2022) Hydrochemical characteristics and quality assessment of groundwater under the impact of seawater intrusion and anthropogenic activity in the coastal areas of Zhejiang and Fujian provinces, China. Lithosphere-US 2022:1394857. https://doi.org/10.2113/2022/1394857
Gould W, McCready R (1982) Denitrification in several Alberta soils: inhibition by sulfur anions. Can J Soil Sci 62:333–342. https://doi.org/10.4141/cjss82-037
Schmauder HP (1987) Nitrification in special publication if the society for general microbiology. J Basic Microbiol 27(8):468
Hansen JI, Henriksen K, Blackburn TH (1981) Seasonal distribution of nitrifying bacteria and rates of nitrification in coastal marine sediments. Microb Ecol 7:297–304. https://doi.org/10.1007/BF02341424
Hauck S, Benz M, Brune A, Schink B (2001) Ferrous iron oxidation by denitrifying bacteria in profundal sediments of a deep lake (Lake Constance). Fems Microbiol Ecol 37:127–134
Jasechko S, Perrone D, Seybold H, Fan YW, Kirchner J (2020) Groundwater level observations in 250,000 coastal US wells reveal scope of potential seawater intrusion. Nat Commun 11(1):1–9
Joye SB, Hollibaugh JT (1995) Influence of sulfide inhibition of nitrification on nitrogen regeneration in sediments. Science 270:623–625. https://doi.org/10.1126/science.270.5236.623
Kendall C(1998) Tracing nitrogen sources and cycling in catchments. Isotope tracers in catchment hydrology. Elsevier, Amsterdam pp 519–576. https://doi.org/10.1016/b978-0-444-81546-0.50023-9
Kuypers MM, Marchant HK, Kartal B (2018) The microbial nitrogen-cycling network. Nat Rev Microbiol 16:263–276. https://doi.org/10.1038/nrmicro.2018.9
Li C, Gao X, Li S, Bundschuh J (2020a) A review of the distribution, sources, genesis, and environmental concerns of salinity in groundwater. Environ Sci Pollut R 27:41157–41174. https://doi.org/10.1007/s11356-020-10354-6
Li D, Gan J, Hui R, Liu Z, Yu L, Lu Z, Dai M (2020b) Vortex and biogeochemical dynamics for the hypoxia formation within the coastal transition zone off the Pearl River Estuary. J Geophys Res-Oceans 125(8):e2020JC016178. https://doi.org/10.1029/2020JC016178
MacDonald AM, Bonsor HC, Ahmed KM, Burgess WG, Basharat M, Calow RC, Dixit A, Foster SSD, Gopal K, Lapworth DJ, Lark RM, Moench M, Mukherjee A, Rao MS, Shamsudduha M, Smith L, Taylor RG, Tucker J, van Steenbergen F, Yadav SK (2016) Groundwater quality and depletion in the Indo-Gangetic Basin mapped from in situ observations. Nat Geosci 9:762–766. https://doi.org/10.1038/NGEO2791
Mao H, Wang G, Liao F, Shi Z, Huang X, Li B, Yan X (2022) Geochemical evolution of groundwater under the influence of human activities: a case study in the southwest of Poyang Lake Basin. Appl Geochem 140:105299. https://doi.org/10.1016/j.apgeochem.2022.105299
McCleskey RB, Cravotta III CA, Miller MP, Tillman F, Stackelberg P, Knierim KJ, Wise DR (2023) Salinity and total dissolved solids measurements for natural waters: an overview and a new salinity method based on specific conductance and water type. Appl Geochem 105684. https://doi.org/10.1016/j.apgeochem.2023.105684
Meghdadi A, Javar N (2018) Quantification of spatial and seasonal variations in the proportional contribution of nitrate sources using a multi-isotope approach and Bayesian isotope mixing model. Environ Pollut 235:207–222. https://doi.org/10.1016/j.envpol.2017.12.078
Möller D (1990) The Na/Cl ratio in rainwater and the seasalt chloride cycle. Tellus B 42:254–262. https://doi.org/10.3402/tellusb.v42i3.15216
Morrissey EM, Jenkins AS, Brown BL, Franklin RB (2013) Resource availability effects on nitrate-reducing microbial communities in a freshwater wetland. Wetlands 33:301–310. https://doi.org/10.1007/s13157-013-0384-2
Piper AM (1944) A graphic procedure in the geochemical interpretation of water-analyses. EOS Trans Am Geophys Union 25:914–928
Puigserver D, Gimenez J, Gracia F, Granell A, Carmona JM, Torrandell A, Fornos JJ (2023) Effects of global and climate change on the freshwater-seawater interface movement in a Mediterranean karst aquifer of Mallorca Island. Sci Total Environ 169246. https://doi.org/10.1016/j.scitotenv.2023.169246
Purvaja R, Ramesh Ray A, Rixen T (2008) Nitrogen cycling: a review of the processes, transformations and fluxes in coastal ecosystems. Curr Sci 94(11):1419–1438
Qian W, Gan J, Liu J, He B, Lu Z, Guo X, Wang D, Guo L, Huang T, Dai M (2018) Current status of emerging hypoxia in a eutrophic estuary: the lower reach of the Pearl River Estuary, China. Estuar Coast Shelf S 205:58–67. https://doi.org/10.1016/j.ecss.2018.03.004
Qiao Z, Sheng Y, Wang G, Chen X, Liao F, Mao H, Zhang H, He J, Liu Y, Lin Y (2023) Deterministic factors modulating assembly of groundwater microbial community in a nitrogen-contaminated and hydraulically-connected river-lake-floodplain ecosystem. J Environ Manag 347:119210. https://doi.org/10.1016/j.jenvman.2023.119210
Russak A, Yechieli Y, Herut B, Lazar B, Sivan O (2015) The effect of salinization and freshening events in coastal aquifers on nutrient characteristics as deduced from field data. J Hydrol 529:1293–1301
Rysgaard S, Thastum P, Dalsgaard T, Christensen PB, Sloth NP (1999) Effects of salinity on NH4+ adsorption capacity, nitrification, and denitrification in Danish estuarine sediments. Estuaries 22:21–30. https://doi.org/10.2307/1352923
Santoro AE (2010) Microbial nitrogen cycling at the saltwater–freshwater interface. Hydrogeol J 18:187–202. https://doi.org/10.1007/s10040-009-0526-z
Scanlon BR, Reedy RC, Bronson KF (2008) Impacts of land use change on nitrogen cycling archived in semiarid unsaturated zone nitrate profiles, southern High Plains, Texas. Environ Sci Technol 42:7566–7572. https://doi.org/10.1021/es800792w
Shafiee RT, Snow JT, Zhang Q, Rickaby RE (2019) Iron requirements and uptake strategies of the globally abundant marine ammonia-oxidising archaeon, Nitrosopumilus maritimus SCM1. Isme J 13:2295–2305. https://doi.org/10.1038/s41396-019-0434-8
Tarallo D, Alberico I, Cavuoto G, Pelosi N, Punzo M, Di Fiore V (2023) Geophysical assessment of seawater intrusion: the Volturno Coastal Plain case study. Appl Water Sci 13:234. https://doi.org/10.1007/s13201-023-02033-x
Ward MH, Jones RR, Brender JD, De Kok TM, Weyer PJ, Nolan BT, Villanueva CM, Van Breda SG (2018) Drinking water nitrate and human health: an updated review. Int J Env Res Pub He 15:1557. https://doi.org/10.3390/ijerph15071557
Wong WW, Cartwright I, Poh SC, Cook P (2022) Sources and cycling of nitrogen revealed by stable isotopes in a highly populated large temperate coastal embayment. Sci Total Environ 806:150408. https://doi.org/10.1016/j.scitotenv.2021.150408
Xiao K, Wu J, Li H, Hong Y, Wilson AM, Jiao JJ, Shananan M (2018) Nitrogen fate in a subtropical mangrove swamp: potential association with seawater-groundwater exchange. Sci Total Environ 635:586–597. https://doi.org/10.1016/j.scitotenv.2018.04.143
Xiong G, An Q, Fu T, Chen G, Xu X (2020) Evolution analysis and environmental management of intruded aquifers of the Dagu River Basin of China. Sci Total Environ 719:137260. https://doi.org/10.1016/j.scitotenv.2020.137260
Xiong G, Zhu X, Wu J, Liu M, Yang Y, Zeng X (2023b) Seawater intrusion alters nitrogen cycling patterns through hydrodynamic behavior and biochemical reactions: based on Bayesian isotope mixing model and microbial functional network. Sci Total Environ 867:161368. https://doi.org/10.1016/j.scitotenv.2022.161368
Xiong G, Zhu X, Liu M, Yang Y, Chen G, Fu T, Ding R, Xu X, Wu J (2023a) Nitrogen cycle pattern variations during seawater-groundwater-river interactions enhance the nitrogen availability in the coastal earth critical zone. J Hydrol 624. https://doi.org/10.1016/j.jhydrol.2023.129932
Yamanaka M, Kumagai Y (2006) Sulfur isotope constraint on the provenance of salinity in a confined aquifer system of the southwestern Nobi Plain, central Japan. J Hydrol 325:35–55. https://doi.org/10.1016/j.jhydrol.2005.09.026
Yoon S, Sanford RA, Löffler FE (2015) Nitrite control over dissimilatory nitrate/nitrite reduction pathways in Shewanella loihica Strain PV-4. Appl Environ Microb 81:3510–3517
Zhang X, Lan T, Jiang H, Ye K, Dai Z (2023) Bacterial community driven nitrogen cycling in coastal sediments of intertidal transition zone. Sci Total Environ 908:168299. https://doi.org/10.1016/j.scitotenv.2023.168299
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Funding was received from the National Natural Science Foundation of China (grant no. 42172273) and the Shenzhen Science and Technology Program (KCXFZ20211020172542001).
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Formal analysis, investigation, software, and writing—original draft were done by Yingchun Dong. Formal analysis, software, and writing—original draft were done by Xiang Zhang. Conceptualization, methodology, resources, validation, visualization, writing—review and editing, and project administration were done by Lixin Yi.
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Dong, Y., Zhang, X. & Yi, L. Hypoxia exerts greater impacts on shallow groundwater nitrogen cycling than seawater mixture in coastal zone. Environ Sci Pollut Res 31, 43812–43821 (2024). https://doi.org/10.1007/s11356-024-34045-8
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DOI: https://doi.org/10.1007/s11356-024-34045-8