Variations in chemical and physical properties of Amazon forest soils in relation to their genesis

Quesada, C. A., Lloyd, J., Schwarz, M., Patino, S., Baker, T. R., Czimczik, C.,, Fyllas, N. M., Martinelli, L., Nardoto, G. B., Schmerler, J., Santos, A. J. B., Hodnett, M. G., Herrera, R., Luizão, F. J., Arneth, A., Lloyd, G., Dezzeo, N., Hilke, I.,, Kuhlmann, I., Raessler, M., Brand, W. A., Geilmann, H., Filho, J. O. Moraes, Carvalho, F. P., Filho, R. N. Araujo, Chaves, J. E., Cruz Junior, O. F., Pimentel, T. P. and Paiva, R. (2010) Variations in chemical and physical properties of Amazon forest soils in relation to their genesis. Biogeosciences, 7 5: 1515-1541. doi:10.5194/bg-7-1515-2010

Author Quesada, C. A.
Lloyd, J.
Schwarz, M.
Patino, S.
Baker, T. R.
Czimczik, C.,
Fyllas, N. M.
Martinelli, L.
Nardoto, G. B.
Schmerler, J.
Santos, A. J. B.
Hodnett, M. G.
Herrera, R.
Luizão, F. J.
Arneth, A.
Lloyd, G.
Dezzeo, N.
Hilke, I.,
Kuhlmann, I.
Raessler, M.
Brand, W. A.
Geilmann, H.
Filho, J. O. Moraes
Carvalho, F. P.
Filho, R. N. Araujo
Chaves, J. E.
Cruz Junior, O. F.
Pimentel, T. P.
Paiva, R.
Title Variations in chemical and physical properties of Amazon forest soils in relation to their genesis
Journal name Biogeosciences   Check publisher's open access policy
ISSN 1726-4170
Publication date 2010-01-01
Sub-type Article (original research)
DOI 10.5194/bg-7-1515-2010
Open Access Status DOI
Volume 7
Issue 5
Start page 1515
End page 1541
Total pages 27
Editor Emmanuel Boss
Jürgen Kesselmeier
S.W.A. Naqvi
Albrecht Neftel
Place of publication Goettingen, Germany
Publisher Copernicus
Language eng
Subject C1
Abstract Soil samples were collected in six South American countries in a total of 71 different 1 ha forest plots across the Amazon Basin as part of the RAINFOR project. They were analysed for total and exchangeable cations, C, N, pH with various P fractions also determined. Physical properties were also examined and an index of soil physical quality proposed. A diverse range of soils was found. For the western areas near the Andean cordillera and the southern and northern fringes, soils tend to be distributed among the lower pedogenetic levels, while the central and eastern areas of Amazonia have more intensely weathered soils. This gives rise to a large variation of soil chemical and physical properties across the Basin, with soil properties varying predictably along a gradient of pedogenic development. Nutrient pools generally increased slightly in concentration from the youngest to the intermediate aged soils after which a gradual decline was observed with the lowest values found in the most weathered soils. Soil physical properties were strongly correlated with soil fertility, with favourable physical properties occurring in highly weathered and nutrient depleted soils and with the least weathered, more fertile soils having higher incidence of limiting physical properties. Soil phosphorus concentrations varied markedly in accordance with weathering extent and appear to exert an important influence on the nitrogen cycle of Amazon forest soils. © 2010 Author(s).
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ
Additional Notes Received: 18 December 2008 – Published in Biogeosciences Discuss.: 8 April 2009 Revised: 19 March 2010 – Accepted: 24 April 2010 – Published: 17 May 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
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Created: Mon, 14 Mar 2011, 21:15:08 EST by Sarah Borsellino on behalf of School of Geography, Planning & Env Management