Soil carbon turnover and sequestration in native subtropical tree plantations

Approximately 30% of global soil organic carbon (SOC) is stored in subtropical and tropical ecosystems but it is being rapidly lost due to continuous deforestation. Tree plantations are advocated as a C sink, however, little is known about rates of C turnover and sequestration into soil organic matt...

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Bibliographic Details
Published in:Soil biology & biochemistry 2007-08, Vol.39 (8), p.2078-2090
Main Authors: Richards, Anna E., Dalal, Ram C., Schmidt, Susanne
Format: Article
Language:English
Subjects:
13C
Agronomy. Soil science and plant productions
Araucaria
Araucaria cunninghamii
Biochemistry and biology
Biological and medical sciences
Carbon sequestration
Century model
Chemical, physicochemical, biochemical and biological properties
forest plantations
Fundamental and applied biological sciences. Psychology
Light fraction carbon
nitrogen content
Organic matter
pastures
Physics, chemistry, biochemistry and biology of agricultural and forest soils
rain forests
Soil organic carbon
Soil science
subtropical soils
Tree plantations
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Summary:Approximately 30% of global soil organic carbon (SOC) is stored in subtropical and tropical ecosystems but it is being rapidly lost due to continuous deforestation. Tree plantations are advocated as a C sink, however, little is known about rates of C turnover and sequestration into soil organic matter under subtropical and tropical tree plantations. We studied changes in SOC in a chronosequence of hoop pine ( Araucaria cunninghamii) plantations established on former rainforest sites in seasonally dry subtropical Australia. SOC, δ 13C, and light fraction organic C (LF C
ISSN:0038-0717
1879-3428
DOI:10.1016/j.soilbio.2007.03.012