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(Article of periodic en Anglais - 2013)

Document title

Soil carbon source and accumulation over 12,000 years in a semi-natural Miscanthus sinensis grassland in southern Japan

Authors(s) and Affiliation(s)

HOWLETT D.S. (1) ; TOMA Y. (1 2) ; WANG H. (3) ; SUGIYAMA S. (4) ; YAMADA T. (5) ; NISHIWAKI A. (6) ; FERNANDEZ F. (7) ; STEWART J.R. (1 8) ;
(1) Energy Biosciences Inst., Univ. of Illinois, Urbana, ETATS-UNIS
(2) Fac. of Agriculture, Univ. Matsuyama, Ehime, JAPON
(3) Illinois State Geological Survey, Prairie Research Inst., Univ., Champaign, ETATS-UNIS
(4) Paleoenvironment Research Co., Ltd, Miyazaki, JAPON
(5) Field Science Center for Northern Biosphere, Hokkaido Univ., Sapporo, JAPON
(6) Field Science Center, Fac. of Agriculture, Univ., Miyazaki, JAPON
(7) Dep. of Crop Sciences, Univ. of Illinois, Urbana, ETATS-UNIS
(8) Dep. of Plant and Wildlife Sciences, Brigham Young Univ., Provo, ETATS-UNIS

Abstract

Soil carbon stock source was determined in 2 soil profiles on Miscanthus sinensis grassland at the Aso-Kuju National Park in Kumamoto Prefecture, Kyushu. Isotopic analysis demonstrated that 66.8% of soil C was derived from a C4 source. Radiocarbon-ages of soil fractions were highly correlated with soil depth (R2 = 0.99). Over a 12,000 year history of land use at the Aso caldera, Miscanthus sinensis was found to be a major contributor to soil carbon and a sink for atmospheric CO2, which, under certain constraints, has implications for the potential sequestration of soil carbon under Miscanthus in cultivated conditions

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2013, vol. 104 [pp. 127-135]

Bibliographic references : 1 p.

Collation : 5 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.2012.11.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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