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(Article of periodic en Anglais - 2011)

Document title

Organic carbon accumulation in a 2000-year chronosequence of paddy soil evolution

Authors(s) and Affiliation(s)

WISSING L. (1) ; KÖLBL A. (1) ; VOGELSANG V. (2) ; FU J.-R. (3) ; CAO Z.-H. (4) ; KÖGEL-KNABER I. (1) ;
(1) Lehrstuhl für Bodenkunde, Dep. Ecology and Ecosystem Sciences, Center of Life and Food Sciences Weihenstephan, Technische Univ., Freising, ALLEMAGNE
(2) Soil Sciences, Martin-Luther Univ., Halle, ALLEMAGNE
(3) Inst. of Environment and Soil Fertilizer Research, Zhejiang Academy of Agricultural Sciences, Hangzhou, CHINE
(4) Inst. of Soil Science, CAS, Nanjing, CHINE

Abstract

Based on a chronosequence derived from marine sediments, the aims of this study are to investigate the accumulation of organic carbon (OC) and the concurrent loss of inorganic carbon (IC) and to identify the role of the soil fractions for the stabilization of OC with increasing duration of paddy soil management. A chronosequence of 6 age groups of paddy soil formation was chosen in the Zhejiang Province (PR China), ranging from 50 to 2000 years (yrs) of paddy management. Soil samples obtained from horizontal sampling of 3 soil profiles within each age group were analyzed for bulk density (BD), OC as well as IC concentrations, OC stocks of bulk soil and the OC contributions to the bulk soil of the particle size fractions. The silt fraction showed a high accretion of OC and seems to be an important long-term OC sink during soil evolution. With longer paddy management, the fractions < 20 μm showed an increasing actual OC saturation level, but did not reach the calculated potential storage capacity

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2011, vol. 87, no3 [pp. 376-385]

Bibliographic references : 42 ref.

Collation : 4 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.07.007

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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