(Article of periodic en Anglais - 2010)

Document title

Soil erosion in New Zealand is a net sink of CO2

Authors(s) and Affiliation(s)

DYMOND J.R. (1) ;
(1) Landcare Research, Palmerston North, NOUVELLE-ZELANDE


Soil erosion in New Zealand exports much sediment and particulate organic carbon (POC) to the sea. Erosion models are used to estimate the net carbon transfer between soils and atmosphere due to soil erosion for New Zealand. The models are used to estimate the spatial distribution of erosion, which is combined with a digital map of soil organic carbon content to produce the spatial distribution of carbon erosion. The sequestration of atmospheric CO2 by regenerating soils is estimated by combining carbon recovery data with the age distribution of soils since erosion occurrence. The net sink primarily results from a conveyor belt transfer of carbon from the atmosphere to soils regenerating from erosion to the sea floor where carbon is permanently buried. The net sink due to soil erosion can be further increased by reforestation of those terrains where erosion is excessive and there is no carbon recovery in the soils


Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no15 [pp. 1763-1772]

Bibliographic references : 52 ref.

Collation : 6 fig.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2014

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