Phosphorus fractions in soils of the mangrove, restinga and Atlantic forest ecosystems from Cardoso Island, Brazil

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dc.contributor.authorPupin, Breno [UNESP]
dc.contributor.authorNahas, Ely [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade do Vale do Paraíba
dc.date.accessioned2015-10-21T20:28:33Z
dc.date.available2015-10-21T20:28:33Z
dc.date.issued2015-01-01
dc.description.abstractThe availability of phosphorus (P) for the growth of plants often depends on the solubilisation of inorganic phosphates (P fractions) in the soil. The aim of this study was to investigate soil P fractions in terms of availability and soil characteristics of mangrove soil compared with the Atlantic forest and restinga soils that occur at Cardoso Island, Brazil. Soil samples were collected during summer at depths of 0-2, 2-5 and 5-10cm. Except for Ca-P, the quantity of P fractions in the soils decreased in the order: Atlantic forest>mangrove>restinga. Principal components analysis showed that treatments were clustered into two groups based on ecosystem proprieties; P in mangrove soil was associated with pH, moisture and salinity, and P in Atlantic forest soil with soil organic matter (SOM). The P in restinga soil was not associated with any variable. Among fractions, iron (Fe)-P was dominant, followed by calcium (Ca)-P and aluminium (Al)-P. The most recalcitrant P fractions, reductant Fe-P, occluded (o) Fe-P and oAl-P were detected in minor amounts. Soluble (sol)-P was detected only in the Atlantic forest soil. Soil P fractions varied little with depth in the mangrove and restinga soils. The P fractions from Atlantic forest soil were found at depths of 0-2cm (Fe-P, Ca-P) and 2-5cm (sol-P, Al-P, Fe-P, oAl-P and oFe-P). Positive correlation was obtained for all P fractions with moisture (except sol-P and Fe-P) and SOM (except Ca-P) contents and negative correlation with soil pH (except Ca-P) and salinity (except Fe-P and Al-P). Quantities and qualities of the P fractions varied among the studied ecosystems, influenced by the parent material and physico-chemical characteristics of the soil and vegetation.en
dc.description.affiliationUniversidade Paulista Unesp (UNESP) Program of Postgraduate in Agropecuary Microbiology, Faculty of Agronomy and Veterinary Sciences, 14884-900 Jaboticabal, SP, Brazil
dc.description.affiliationUniversidade do Vale do Paraíba, Institute of Research and Development, IP&D, São José dos Campos, SP, Brazil
dc.description.affiliationUniversidade Estadual Paulista (UNESP) Department of Crop Production, Faculty of Agronomy and Veterinary Sciences, 14884-900 Jaboticabal, SP, Brazil.
dc.description.affiliationUnespUniversidade Paulista Unesp (UNESP) Program of Postgraduate in Agropecuary Microbiology, Faculty of Agronomy and Veterinary Sciences, 14884-900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) Department of Crop Production, Faculty of Agronomy and Veterinary Sciences, 14884-900 Jaboticabal, SP, Brazil.
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent253-262
dc.identifierhttp://www.publish.csiro.au/?paper=SR14334
dc.identifier.citationSoil Research. Clayton: Csiro Publishing, v. 53, n. 3, p. 253-262, 2015.
dc.identifier.doi10.1071/SR14334
dc.identifier.issn1838-675X
dc.identifier.urihttp://hdl.handle.net/11449/129155
dc.identifier.wosWOS:000354280100003
dc.language.isoeng
dc.publisherCsiro Publishing
dc.relation.ispartofSoil Research
dc.relation.ispartofjcr1.591
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDepthen
dc.subjectMoistureen
dc.subjectNatural ecosystemsen
dc.subjectOrganic matteren
dc.subjectpHen
dc.titlePhosphorus fractions in soils of the mangrove, restinga and Atlantic forest ecosystems from Cardoso Island, Brazilen
dc.typeArtigo
dcterms.rightsHolderCsiro Publishing
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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