Journal article
Soil carbon and litter development along a reconstructed biodiverse forest chronosequence of South-Western Australia
Biogeochemistry, Vol.101(1-3), pp.197-209
2010
Abstract
Soil organic matter (SOM) increases with time as landscape is restored. Studying SOM development along restored forest chronosequences would be useful in clarifying some of the uncertainties in quantifying C turnover rates with respect to forest clearance and ensuing restoration. The development of soil organic matter in the mineral soils was studied at four depths in a 16-year-old restored jarrah forest chronosequence. The size-separated SOM fractionation along with δ13C isotopic shift was utilised to resolve the soil C temporal and spatial changes with developing vegetation. The restored forest chronosequence revealed several important insights into how soil C is developing with age. Litter accumulation outpaced the native forest levels in 12 years after restoration. The surface soils, in general, showed increase in total C with age, but this trend was not clearly observed at lower depths. C accumulation was observed with increasing restoration age in all three SOM size-fractions in the surface 0–2 cm depth. These biodiverse forests show a trend towards accumulating C in recalcitrant stable forms, but only in the surface 0–2 cm mineral soil. A significant reverse trend was observed for the moderately labile SOM fraction for lower depths with increasing restoration age. Correlating the soil δ13C with total C concentration revealed the re-establishment of the isotopically depleted labile to enriched refractory C continuum with soil depth for the older restored sites. This implied that from a pedogenic perspective, the restored soils are developing towards the original native soil carbon profile.
Details
- Title
- Soil carbon and litter development along a reconstructed biodiverse forest chronosequence of South-Western Australia
- Authors/Creators
- S.J. George (Author/Creator) - The University of Western AustraliaR.N. Kelly (Author/Creator) - The University of Western AustraliaP.F. Greenwood (Author/Creator) - The University of Western AustraliaM. Tibbett (Author/Creator) - The University of Western Australia
- Publication Details
- Biogeochemistry, Vol.101(1-3), pp.197-209
- Publisher
- Springer Science+Business Media B.V.
- Identifiers
- 991005539586807891
- Copyright
- © 2010 Springer Science+Business Media B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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InCites Highlights
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.45 Soil Science
- 3.45.112 Soil Carbon Dynamics
- Web Of Science research areas
- Environmental Sciences
- Geosciences, Multidisciplinary
- ESI research areas
- Environment/Ecology