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Maintenance cost, toppling risk and size of trees in a self-thinning stand

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dc.contributor.author Larjavaara, Markku en
dc.date.accessioned 2010-07-21T13:40:33Z
dc.date.available 2010-07-21T13:40:33Z
dc.date.issued 2010
dc.identifier.citation Larjavaara, Markku. 2010. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F9847">Maintenance cost, toppling risk and size of trees in a self-thinning stand</a>." <em>Journal of theoretical biology</em>. 265 (1):63&ndash;67. <a href="https://doi.org/10.1016/j.jtbi.2010.04.021">https://doi.org/10.1016/j.jtbi.2010.04.021</a> en
dc.identifier.issn 0022-5193
dc.identifier.uri http://hdl.handle.net/10088/9847
dc.description.abstract Wind routinely topples trees during storms, and the likelihood that a tree is toppled depends critically on its allometry. Yet none of the existing theories to explain tree allometry consider wind drag on tree canopies. Since leaf area index in crowded, self-thinning stands is independent of stand density, the drag force per unit land can also be assumed to be independent of stand density, with only canopy height influencing the total toppling moment. Tree stem dimensions and the self-thinning biomass can then be computed by further assuming that the risk of toppling over and stem maintenance per unit land area are independent of stand density, and that stem maintenance cost is a linear function of stem surface area and sapwood volume. These assumptions provide a novel way to understand tree allometry and lead to a self-thinning line relating tree biomass and stand density with a power between -3/2 and -2/3 depending on the ratio of maintenance of sapwood and stem surface. en
dc.relation.ispartof Journal of theoretical biology en
dc.title Maintenance cost, toppling risk and size of trees in a self-thinning stand en
dc.type Journal Article en
dc.identifier.srbnumber 87825
dc.identifier.doi 10.1016/j.jtbi.2010.04.021
rft.jtitle Journal of theoretical biology
rft.volume 265
rft.issue 1
rft.spage 63
rft.epage 67
dc.description.SIUnit STRI en
dc.citation.spage 63
dc.citation.epage 67

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