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(Article of periodic en Anglais - 2015)

Document title

Pyrogenic carbon controls across a soil catena in the Pacific Northwest

Authors(s) and Affiliation(s)

JAUSS V. (1) ; JOHNSON M. (2) ; KRULL E. (3) ; DAUB M. (4) ; LEHMANN J. (1 5) ;
(1) Dept. of Crop and Soil Sciences, Cornell Univ., Ithaca, ETATS-UNIS
(2) Environmental Protection Agency, Western Ecology Division, Corvallis, ETATS-UNIS
(3) CSIRO Land and Water, Glen Osmond, AUSTRALIE
(4) Inst. for Analysis, Dynamics and Modelling, Univ., Stuttgart, ALLEMAGNE
(5) Atkinson Center for a Sustainable Future, Cornell Univ., Ithaca, ETATS-UNIS

Abstract

Using mid-infrared spectroscopy (MIR) and partial least-squares (PLS) analysis in conjunction with ultraviolet photo-oxidation followed by nuclear magnetic resonance spectroscopy (UV-NMR) techniques, pyrogenic carbon (PyC) contents were quantified for samples from soil profiles along a vegetation gradient. Sample locations included different forest types as well as sites under agricultural use. It is highlighted that : PyC concentrations did not change consistently with soil depth; Lower PyC stocks were observed at sites with higher mean annual temperature (MAT) and lower mean annual precipitation (MAP). PyC was only moderately related to non-PyC soil organic carbon (SOC), which comprises plant residues, their decomposition products and soil biota, suggesting largely independent processes influencing production and disappearance

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2015, vol. 124 [pp. 53-59]

Bibliographic references : 39 ref.

Collation : 4 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.09.001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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