Addition of nitrogen fertiliser increases net ecosystem carbon dioxide uptake and the loss of soil organic carbon in grassland growing in mesocosms
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- 作者：Gabriel Y.K. Moineta ; b ; moinetg@landcareresearch.co.nz" class="auth_mail" title="E-mail the corresponding author ; Ellen Cieraada ; 1 ; Graeme N.D. Rogersa ; John E. Hunta ; Peter Millarda ; Matthew H. Turnbullb ; David Whiteheada
- 关键词：Carbon isotopes ; Partitioning respiration ; Rhizosphere priming
- 刊名：Geoderma
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：266
- 期：Complete
- 页码：75-83
- 全文大小：602 K
文摘
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We measured net ecosystem carbon exchange and its components in grassland mesocosms.
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Addition of high nitrogen increased net ecosystem carbon uptake.
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We used a non-disruptive technique to partition soil heterotrophic respiration.
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High nitrogen increased heterotrophic respiration.
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We conclude that increases in net carbon uptake can mask losses of soil carbon.