Soil organic carbon mineralization rates in aggregates under contrasting land uses

Fazle Rabbi, Sheikh M; Wilson, Brian; Lockwood, Peter V; Daniel, Heiko; Young, Iain

doi:10.1016/j.geoderma.2013.10.023

Author(s)

Fazle Rabbi, Sheikh M

Wilson, Brian

Lockwood, Peter V

Daniel, Heiko

Young, Iain

Publication Date

2014

Abstract

Measuring soil organic carbon (SOC) mineralization in macro-aggregates (250-2000 μm), micro-aggregates (250-53 μm) and the < 53 μm fraction helps to understand how spatial separation of SOC inside soil aggregates regulates its dynamics. We hypothesized that (i) compared with macro-aggregates SOC mineralization rate of micro-aggregates would be slower, (ii) adsorption of SOC on < 53 μm fraction decreases the SOC mineralization rate, and (iii) land use has a significant influence on SOC decomposition rate. To test these hypotheses we collected topsoil from Dermosol (Acrisols in FAO Soil Classification) sites under three contrasting land uses namely native pasture (NP), crop-pasture rotation (CP) and woodland (WL).

Citation

Geoderma, v.216, p. 10-18

ISSN

1872-6259

0016-7061

Link

https://hdl.handle.net/1959.11/17111

Language

en

Publisher

Elsevier BV

Title

Soil organic carbon mineralization rates in aggregates under contrasting land uses

Type of document

Journal Article

Entity Type

Publication

Author(s)	Fazle Rabbi, Sheikh M Wilson, Brian Lockwood, Peter V Daniel, Heiko Young, Iain
Publication Date	2014
Abstract	Measuring soil organic carbon (SOC) mineralization in macro-aggregates (250-2000 μm), micro-aggregates (250-53 μm) and the < 53 μm fraction helps to understand how spatial separation of SOC inside soil aggregates regulates its dynamics. We hypothesized that (i) compared with macro-aggregates SOC mineralization rate of micro-aggregates would be slower, (ii) adsorption of SOC on < 53 μm fraction decreases the SOC mineralization rate, and (iii) land use has a significant influence on SOC decomposition rate. To test these hypotheses we collected topsoil from Dermosol (Acrisols in FAO Soil Classification) sites under three contrasting land uses namely native pasture (NP), crop-pasture rotation (CP) and woodland (WL).
Citation	Geoderma, v.216, p. 10-18
ISSN	1872-6259 0016-7061
Link	https://hdl.handle.net/1959.11/17111
Language	en
Publisher	Elsevier BV
Title	Soil organic carbon mineralization rates in aggregates under contrasting land uses
Type of document	Journal Article
Entity Type	Publication

Soil organic carbon mineralization rates in aggregates under contrasting land uses

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