Element interactions limit soil carbon storage.
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ABSTRACT:
SUBMITTER: van Groenigen KJ
PROVIDER: S-EPMC1458924 | biostudies-literature | 2006 Apr
REPOSITORIES: biostudies-literature
Publications
Element interactions limit soil carbon storage.
van Groenigen Kees-Jan KJ Six Johan J Hungate Bruce A BA de Graaff Marie-Anne MA van Breemen Nico N van Kessel Chris C
Proceedings of the National Academy of Sciences of the United States of America 20060413 17
Rising levels of atmospheric CO2 are thought to increase C sinks in terrestrial ecosystems. The potential of these sinks to mitigate CO2 emissions, however, may be constrained by nutrients. By using metaanalysis, we found that elevated CO2 only causes accumulation of soil C when N is added at rates well above typical atmospheric N inputs. Similarly, elevated CO2 only enhances N2 fixation, the major natural process providing soil N input, when other nutrients (e.g., phosphorus, molybdenum, and po ...[more]
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