Articles | Volume 13, issue 10
Biogeosciences, 13, 2927–2944, 2016
https://doi.org/10.5194/bg-13-2927-2016

Special issue: OzFlux: a network for the study of ecosystem carbon and water...

Biogeosciences, 13, 2927–2944, 2016
https://doi.org/10.5194/bg-13-2927-2016

Research article 18 May 2016

Research article | 18 May 2016

Carbon budgets for an irrigated intensively grazed dairy pasture and an unirrigated winter-grazed pasture

John E. Hunt et al.

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ED: Publish subject to minor revisions (Editor review) (18 Apr 2016) by Youngryel Ryu
AR by Johannes Laubach on behalf of the Authors (27 Apr 2016)  Author's response    Manuscript
ED: Publish as is (27 Apr 2016) by Youngryel Ryu
Short summary
Intensification of dairying is rapid in New Zealand, with unknown impact on stocks of soil carbon (C). We investigated changes of soil C over one year for an irrigated, fertilised, rotationally-grazed pasture and an unirrigated winter grazed pasture. The irrigated pasture gained more C from net CO2 uptake, excreta deposition and fertiliser application than was lost by grazing. The unirrigated pasture lost a small amount of C. Intensive dairy practices may thus increase soil C in the short term.
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