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The geochemistry of Amazonian peats

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The geochemistry of Amazonian peats. / Lawson, I.T.; Jones, T.J.; Kelly, T.J. et al.
In: Wetlands, Vol. 34, No. 5, 10.2014, p. 909-915.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Lawson, IT, Jones, TJ, Kelly, TJ, Honorio Coronado, EN & Roucoux, KH 2014, 'The geochemistry of Amazonian peats', Wetlands, vol. 34, no. 5, pp. 909-915. https://doi.org/10.1007/s13157-014-0552-z

APA

Lawson, I. T., Jones, T. J., Kelly, T. J., Honorio Coronado, E. N., & Roucoux, K. H. (2014). The geochemistry of Amazonian peats. Wetlands, 34(5), 909-915. https://doi.org/10.1007/s13157-014-0552-z

Vancouver

Lawson IT, Jones TJ, Kelly TJ, Honorio Coronado EN, Roucoux KH. The geochemistry of Amazonian peats. Wetlands. 2014 Oct;34(5):909-915. Epub 2014 Jun 7. doi: 10.1007/s13157-014-0552-z

Author

Lawson, I.T. ; Jones, T.J. ; Kelly, T.J. et al. / The geochemistry of Amazonian peats. In: Wetlands. 2014 ; Vol. 34, No. 5. pp. 909-915.

Bibtex

@article{db91ccd513b6449aa02be1937ec17a6c,
title = "The geochemistry of Amazonian peats",
abstract = "The chemical, physical and palaeobotanical composition of peat can be used to infer the history of a peatland and the processes presently operating within it. Here we present new data on the geochemistry of a peat sequence from a lowland palm swamp, Quistococha, in Peruvian Amazonia. We show, through comparison with subfossil pollen data from the same sequence, that changes in the depositional environment cause changes in peat properties including lignin content, C/N ratios, and the abundance of several metal cations, but that these properties are altered by post-depositional processes to a large extent. An upward trend in the top 1.5 m of the sequence in the concentrations of N, K, Ca, Mg and Na probably reflects nutrient uptake and cycling by the standing biomass. Upward trends in Mn and Fe concentrations suggest that limited oxygenation of the peat may occur to a similar depth. Comparison with other published records suggests that such deep biological alteration may be characteristic of tropical forested peats.",
keywords = "Inorganic geochemistry, Lignin, Cations, Nutrient cycling, Water table, Pollen",
author = "I.T. Lawson and T.J. Jones and T.J. Kelly and {Honorio Coronado}, E.N. and K.H. Roucoux",
year = "2014",
month = oct,
doi = "10.1007/s13157-014-0552-z",
language = "English",
volume = "34",
pages = "909--915",
journal = "Wetlands",
issn = "1943-6246",
publisher = "Springer Netherlands",
number = "5",

}

RIS

TY - JOUR

T1 - The geochemistry of Amazonian peats

AU - Lawson, I.T.

AU - Jones, T.J.

AU - Kelly, T.J.

AU - Honorio Coronado, E.N.

AU - Roucoux, K.H.

PY - 2014/10

Y1 - 2014/10

N2 - The chemical, physical and palaeobotanical composition of peat can be used to infer the history of a peatland and the processes presently operating within it. Here we present new data on the geochemistry of a peat sequence from a lowland palm swamp, Quistococha, in Peruvian Amazonia. We show, through comparison with subfossil pollen data from the same sequence, that changes in the depositional environment cause changes in peat properties including lignin content, C/N ratios, and the abundance of several metal cations, but that these properties are altered by post-depositional processes to a large extent. An upward trend in the top 1.5 m of the sequence in the concentrations of N, K, Ca, Mg and Na probably reflects nutrient uptake and cycling by the standing biomass. Upward trends in Mn and Fe concentrations suggest that limited oxygenation of the peat may occur to a similar depth. Comparison with other published records suggests that such deep biological alteration may be characteristic of tropical forested peats.

AB - The chemical, physical and palaeobotanical composition of peat can be used to infer the history of a peatland and the processes presently operating within it. Here we present new data on the geochemistry of a peat sequence from a lowland palm swamp, Quistococha, in Peruvian Amazonia. We show, through comparison with subfossil pollen data from the same sequence, that changes in the depositional environment cause changes in peat properties including lignin content, C/N ratios, and the abundance of several metal cations, but that these properties are altered by post-depositional processes to a large extent. An upward trend in the top 1.5 m of the sequence in the concentrations of N, K, Ca, Mg and Na probably reflects nutrient uptake and cycling by the standing biomass. Upward trends in Mn and Fe concentrations suggest that limited oxygenation of the peat may occur to a similar depth. Comparison with other published records suggests that such deep biological alteration may be characteristic of tropical forested peats.

KW - Inorganic geochemistry

KW - Lignin

KW - Cations

KW - Nutrient cycling

KW - Water table

KW - Pollen

U2 - 10.1007/s13157-014-0552-z

DO - 10.1007/s13157-014-0552-z

M3 - Journal article

VL - 34

SP - 909

EP - 915

JO - Wetlands

JF - Wetlands

SN - 1943-6246

IS - 5

ER -