DOI: 10.1016/j.marpolbul.2017.11.020
Scopus记录号: 2-s2.0-85034229089
论文题名: Are acid volatile sulfides (AVS) important trace metals sinks in semi-arid mangroves?
作者: Queiroz H.M. ; Nóbrega G.N. ; Otero X.L. ; Ferreira T.O.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126 起始页码: 318
结束页码: 322
语种: 英语
英文关键词: Bioavailability
; Coastal wetlands
; Iron
; Pyrite
; Sulfate reduction
; Trace elements
Scopus关键词: Biochemistry
; Carbon
; Iron
; Metals
; Organic carbon
; Pyrites
; Sulfur compounds
; Wetlands
; Acid volatile sulfides
; Bioavailability
; Climatic conditions
; Coastal wetlands
; Oxic conditions
; Semi-arid conditions
; Sulfate reduction
; Toxic metals
; Trace elements
; acid volatile sulfide
; iron
; organic carbon
; rain
; sulfide
; unclassified drug
; bioavailability
; climate conditions
; coastal wetland
; iron
; mangrove
; pyrite
; semiarid region
; sulfide
; trace element
; trace metal
; Article
; bioavailability
; concentration (parameters)
; correlation coefficient
; evapotranspiration
; limit of quantitation
; mangrove
; nonhuman
; pH
; precipitation
; principal component analysis
; seasonal variation
; Rhizophoraceae
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Acid-volatile sulfides (AVS) formation and its role on trace metals bioavailability were studied in semi-arid mangroves. The semi-arid climatic conditions at the studied sites, marked by low rainfall and high evapotranspiration rates, clearly limited the AVS formation (AVS contents varied from 0.10 to 2.34 μmol g− 1) by favoring oxic conditions (Eh > + 350 mV). The AVS contents were strongly correlated with reactive iron and organic carbon (r = 0.84; r = 0.83 respectively), evidencing their dominant role for AVS formation under semi-arid conditions. On the other hand, the recorded ΣSEM/AVS values remained > 1 evidencing a little control of AVS over the bioavailability of trace metals and, thus, its minor role as a sink for toxic metals. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88555
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, CEP 13418-900, Piracicaba, São Paulo, Brazil; Departamento de Edafoloxia e Quimica Agrícola, Facultade de Bioloxia-Universidade de Santiago de Compostela, Santiago de Compostela, Spain
Recommended Citation:
Queiroz H.M.,Nóbrega G.N.,Otero X.L.,et al. Are acid volatile sulfides (AVS) important trace metals sinks in semi-arid mangroves?[J]. Marine Pollution Bulletin,2018-01-01,126