Skip to Main Content
Does water transport scale universally with tree size?Author(s): F.C. Meinzer; B.J. Bond; J.M. Warren; D.R. Woodruff
Source: Functional Ecology. 29: 558-565
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (780 KB)
Description1. We employed standardized measurement techniques and protocols to describe the size dependence of whole-tree water use and cross-sectional area of conducting xylem (sapwood) among several species of angiosperms and conifers.
2. The results were not inconsistent with previously proposed 314-power scaling of water transport with estimated above-ground biomass. However, for a given size, angiosperms transported considerably greater quantities of water than conifers.
3. In the angiosperms studied, the scaling of water transport with sapwood area, stem diameter and above-ground biomass was best described by sigmoid functions rather than a power function, consistent with the previously reported size dependence of other processes such as growth.
4. At least three distinct species groupings for relationships between sapwood area and stem basal area were observed. Scaling of sapwood area with stem radius was well described by a power function of the form Y = YoXb. However, exponents obtained for two of the three species groups differed significantly from a recently proposed theoretical value of 2.33.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMeinzer, F.C.; Bond, B.J.; Warren, J.M.; Woodruff, D.R. 2005. Does water transport scale universally with tree size?. Functional Ecology. 29: 558-565
Keywordsallometric scaling, hydraulic architecture, sap flow, sapwood, xylem anatomy
- Moving water well: comparing hydraulic efficiency in twigs and trunks of coniferous, ring-porous, and diffuse-porous saplings from temperate and tropical forests
- Hydraulic safety margins and embolism reversal in stems and leaves: Why are conifers and angiosperms so different?
- Detecting defects in conifers with ground penetrating radar: applications and challenges
XML: View XML