Agricultural soil erosion and global carbon cycle : controversy over?
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 63803
Author(s) Kuhn, Nikolaus J.; Hoffmann, Thomas; Schwanghart, Wolfgang; Dotterweich, Markus
Author(s) at UniBasel Schwanghart, Wolfgang
Kuhn, Nikolaus J.
Year 2009
Title Agricultural soil erosion and global carbon cycle : controversy over?
Journal Earth surface processes and landforms
Volume 34
Number 7
Pages / Article-Number 1033-1038
Keywords soil erosion, agricultural land, global carbon cycle, eco-geomorphology
Abstract Recent research on the contribution of soil erosion on agricultural land to atmospheric carbon dioxide (CO2) emphasizes either the contribution of soil organic matter (SOM) mineralization during transport as source for atmospheric CO2, or the deep burial of SOM-rich sediment in agricultural landscapes as a sink. The contribution of either process is subject to a controversial debate. In this letter, we present preliminary results on our research on interrill carbon (C) erosion, SOM transport by rill erosion and the stationarity of C erosion during the Holocene. None of those issues has been incorporated comprehensively and with global coverage in the debate on the role of C erosion in the global C cycle. Therefore, we argue that only an eco-geomorphologic perspective on organic C movement through landscapes can reconcile the two positions.
Publisher Interscience-Wiley
ISSN/ISBN 0197-9337
Full Text on edoc No
Digital Object Identifier DOI 10.1002/esp.1796
ISI-Number WOS:000266956400011
Document type (ISI) Article

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