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Tytuł:
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Different effects of NaCl and Na 2 SO 4 on soil net nitrogen mineralization in coastal wetlands.
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Autorzy:
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Jia J; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
Bai J; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China. Electronic address: .
Gao H; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
Wang W; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
Zhang G; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
Wang X; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China.
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Źródło:
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Ecotoxicology and environmental safety [Ecotoxicol Environ Saf] 2020 Aug; Vol. 199, pp. 110678. Date of Electronic Publication: 2020 May 11.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Amsterdam, Netherlands : Elsevier
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MeSH Terms:
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Wetlands*
Nitrogen/*analysis
Sodium Chloride/*chemistry
Soil/*chemistry
Sulfates/*chemistry
Aerobiosis ; Chenopodiaceae/growth & development ; China ; Nitrification ; Rivers/chemistry ; Salinity ; Sodium Chloride/administration & dosage ; Soil Microbiology ; Sulfates/administration & dosage ; Urease/metabolism
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Contributed Indexing:
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Keywords: Coastal wetlands; Na(2)SO(4); NaCl; Nitrification; Nitrogen mineralization
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Substance Nomenclature:
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0 (Soil)
0 (Sulfates)
0YPR65R21J (sodium sulfate)
451W47IQ8X (Sodium Chloride)
EC 3.5.1.5 (Urease)
N762921K75 (Nitrogen)
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Entry Date(s):
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Date Created: 20200514 Date Completed: 20200727 Latest Revision: 20200727
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Update Code:
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20240105
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DOI:
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10.1016/j.ecoenv.2020.110678
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PMID:
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32402898
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NaCl and Na 2 SO 4 are the foremost salt compositions in coastal wetlands, while their effects on soil net nitrogen mineralization still remain unclear. Aimed at investigating the two salt compositions on soil net nitrogen mineralization, a 30-day laboratory incubation experiment was respectively conducted by adding 5‰ NaCl and Na 2 SO 4 to incubated coastal wetland soils under aerobic conditions. Our results showed that Na 2 SO 4 addition increased the rates of mineralization (R min ) by an average of 33.03% and nitrification (R nit ) by 23.84% during the incubation (p < 0.05). In contrast, NaCl addition significantly reduced R min by 71% and R nit by 44% at day 7 (p < 0.05). The activities of fluorescein diacetate, arylamidase and urease in Na 2 SO 4 addition treatments were higher than those in NaCl addition treatment. These results demonstrated the ion-specific effects of salt type on nitrogen mineralization rates and enzyme activities.
(Copyright © 2020 Elsevier Inc. All rights reserved.)
