dc.contributor.author |
Potvin, Catherine Jeanne |
en |
dc.contributor.author |
Mancilla, Lady |
en |
dc.contributor.author |
Buchmann, Nina |
en |
dc.contributor.author |
Monteza, Jose |
en |
dc.contributor.author |
Moore, Tim |
en |
dc.contributor.author |
Murphy, Meaghan |
en |
dc.contributor.author |
Oelmann, Yvonne |
en |
dc.contributor.author |
Scherer-Lorenzen, Michael |
en |
dc.contributor.author |
Turner, Benjamin L. |
en |
dc.contributor.author |
Wilcke, Wolfgang |
en |
dc.contributor.author |
Zeugin, Fabienne |
en |
dc.contributor.author |
Wolf, Sebastian |
en |
dc.date.accessioned |
2011-08-11T13:56:48Z |
|
dc.date.available |
2011-08-11T13:56:48Z |
|
dc.date.issued |
2011 |
|
dc.identifier.citation |
Potvin, Catherine Jeanne, Mancilla, Lady, Buchmann, Nina, Monteza, Jose, Moore, Tim, Murphy, Meaghan, Oelmann, Yvonne, Scherer-Lorenzen, Michael, Turner, Benjamin L., Wilcke, Wolfgang, Zeugin, Fabienne, and Wolf, Sebastian. 2011. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F16824">An ecosystem approach to biodiversity effects: Carbon pools in a tropical tree plantation</a>." <em>Forest Ecology and Management</em>. 261 (10):1614–1624. <a href="https://doi.org/10.1016/j.foreco.2010.11.015">https://doi.org/10.1016/j.foreco.2010.11.015</a> |
en |
dc.identifier.issn |
0378-1127 |
|
dc.identifier.uri |
http://hdl.handle.net/10088/16824 |
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dc.description.abstract |
This paper presents a synthesis of experiments conducted in a tropical tree plantation established in 2001 and consisting of 22 plots of 45 m × 45 m with either one, three or six native tree species. We examined the changes in carbon (C) pools (trees, herbaceous vegetation, litter, coarse woody debris (CWD), and mineral topsoil at 0-10 cm depth) and fluxes (decomposition of CWD and litter, as well as soil respiration) both through time and among diversity levels. Between 2001 and 2009 the aboveground C pools increased, driven by trees. Across diversity levels, the mean observed aboveground C pool was 7.9 ± 2.5 Mg ha-1 in 2006 and 20.4 ± 7.4 Mg ha-1 in 2009, a 158% increase. There was no significant diversity effect on the observed aboveground C pool, but we found a significant decrease in the topsoil C pool, with a mean value of 34.5 ± 2.4 Mg ha-1 in 2001 and of 25.7 ± 5.7 Mg ha-1 in 2009 (F1,36 = 52.12, p < 0.001). Assuming that the biomass C pool in 2001 was negligible (<1 Mg ha-1), then the plantation gained in C, on average, ~20 and lost ~9 Mg ha-1 in biomass and soil respectively, for an overall gain of ~11 Mg ha-1 over 8 years. Across the entire data set, we uncovered significant effects of diversity on CWD decomposition (diversity: F2,393 = 15.93, p < 0.001) and soil respiration (monocultures vs mixtures: t = 15.35, df = 11, p < 0.05) and a marginally significant time × diversity interaction on the loss of total C from the mineral topsoil pool (see above). Monthly CWD decomposition was significantly faster in monocultures (35.0 ± 24.1%) compared with triplets (31.3 ± 21.0%) and six-species mixtures (31.9 ± 26.8%), while soil respiration was higher in monocultures than in mixtures (t = 15.35, df = 11, p < 0.001). Path analyses showed that, as diversity increases, the links among the C pools and fluxes strengthen significantly. Our results demonstrate that tree diversity influences the processes governing the changes in C pools and fluxes following establishment of a tree plantation on a former pasture. We conclude that the choice of tree mixtures for afforestation in the tropics can have a marked influence on C pools and dynamics. |
en |
dc.relation.ispartof |
Forest Ecology and Management |
en |
dc.title |
An ecosystem approach to biodiversity effects: Carbon pools in a tropical tree plantation |
en |
dc.type |
Journal Article |
en |
dc.identifier.srbnumber |
100082 |
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dc.identifier.doi |
10.1016/j.foreco.2010.11.015 |
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rft.jtitle |
Forest Ecology and Management |
|
rft.volume |
261 |
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rft.issue |
10 |
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rft.spage |
1614 |
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rft.epage |
1624 |
|
dc.description.SIUnit |
STRI |
en |
dc.description.SIUnit |
Peer-reviewed |
en |
dc.citation.spage |
1614 |
|
dc.citation.epage |
1624 |
|