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DOI	10.1007/s10533-021-00858-9
	Windsock behavior: climatic control on iron biogeochemistry in tropical mangroves
	Ferreira, Tiago Osorio; Nobrega, Gabriel Nuto; Queiroz, Hermano Melo; de Souza Junior, Valdomiro S.; Barcellos, Diego; Ferreira, Amanda Duim; Otero, Xose L.
通讯作者	Ferreira, TO (corresponding author), Univ Sao Paulo ESALQ USP, Luiz de Queiroz Coll Agr, Av Padua Dias 11, BR-13418900 Piracicaba, SP, Brazil.
来源期刊	BIOGEOCHEMISTRY
ISSN	0168-2563
EISSN	1573-515X
出版年	2021
英文摘要	Iron is one of the most abundant elements on the planet and a micronutrient for most organisms. In many coastal regions worldwide, mangrove forests affect the dynamics and mobility of different elements to the oceans especially through their soils. The biogeochemistry of mangrove soils responds to numerous factors that vary within different spatial and time scales. In this sense, seasonality can be crucial in determining the role of these ecosystems towards the iron biogeochemical cycle. Thus, the main goal of the present study was to assess the effects of contrasting climatic conditions on iron biogeochemistry in different mangrove forests along the Brazilian coast. We studied the soils (n = 435) of 14 different mangrove forests distributed along two contrasting climate regions: the semi-arid Northeast and the humid Southeast coasts of Brazil. In the SE region, water surplus and lower temperatures in both seasons did not cause significant changes in iron concentrations (wet season: 216 mu mol g(-1); dry season: 230 mu mol g(-1)) where oxyhydroxides and pyrite immobilize iron in the mangrove soils. In contrast, in the semi-arid mangroves, a marked water deficit during the dry season caused both pyrite oxidation and iron reprecipitation as oxyhydroxides. Contrarily, in the rainy season, the establishment of a suboxic environment (Eh similar to + 100 mV) favored significant iron losses via iron reduction. We conclude that seasonality can affect the maintenance and cycling of iron in mangrove soils, which may function as important sources of this element for adjacent ecosystems.
英文关键词	Climatic regimes Iron biogeochemical cycling Iron oxides Pyrite
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000705713800001
WOS关键词	WEIGHT ORGANIC-ACIDS ; SEQUENTIAL EXTRACTION ; RHIZOPHORA-STYLOSA ; PYRITE OXIDATION ; COASTAL WETLANDS ; TRACE-METALS ; PADDY SOILS ; FORESTS ; CARBON ; MATTER
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362696
作者单位	[Ferreira, Tiago Osorio; Queiroz, Hermano Melo; Barcellos, Diego; Ferreira, Amanda Duim] Univ Sao Paulo ESALQ USP, Luiz de Queiroz Coll Agr, Av Padua Dias 11, BR-13418900 Piracicaba, SP, Brazil; [Nobrega, Gabriel Nuto] Fed Fluminense Univ, Dept Geochem, Grad Program Earth Sci Geochem, BR-24020140 Niteroi, RJ, Brazil; [de Souza Junior, Valdomiro S.] Univ Fed Rural Pernambuco, Dept Agron, Av Dom Manoel de Medeiros S-N, BR-52171900 Recife, PE, Brazil; [Barcellos, Diego] Fed Univ Sao Paulo UNIFESP, Dept Environm Sci, Rua Sao Nicolau, BR-21009913 Diadema, SP, Brazil; [Otero, Xose L.] Univ Santiago de Compostela, Fac Biol, CRETUS Inst, Dept Edaphol & Agr Chem, Campus Sur, Santiago De Compostela 15782, Spain
推荐引用方式 GB/T 7714	Ferreira, Tiago Osorio,Nobrega, Gabriel Nuto,Queiroz, Hermano Melo,et al. Windsock behavior: climatic control on iron biogeochemistry in tropical mangroves[J],2021.
APA	Ferreira, Tiago Osorio.,Nobrega, Gabriel Nuto.,Queiroz, Hermano Melo.,de Souza Junior, Valdomiro S..,Barcellos, Diego.,...&Otero, Xose L..(2021).Windsock behavior: climatic control on iron biogeochemistry in tropical mangroves.BIOGEOCHEMISTRY.
MLA	Ferreira, Tiago Osorio,et al."Windsock behavior: climatic control on iron biogeochemistry in tropical mangroves".BIOGEOCHEMISTRY (2021).