Leaf area compounds height-related hydraulic costs of water transport in Oregon White Oak trees.

N. Phillips; B. J. Bond; N. G. McDowell; Michael G. Ryan; A. Schauer

doi:10.1111/j.1365-2435.2003.00791.x

Treesearch

Leaf area compounds height-related hydraulic costs of water transport in Oregon White Oak trees.

Informally Refereed

Authors:

N. Phillips, B. J. Bond, N. G. McDowell, Michael G. Ryan, A. Schauer

Year:

2003

Type:

Miscellaneous Publication

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.1111/j.1365-2435.2003.00791.x

Source:

Functional Ecology. Vol. 17, no. 6 (Dec. 2003). p. 832-840.

Download (PDF 278 KB)

Download (PDF 278 KB): https://research.fs.usda.gov/download/treesearch/9298.pdf

Abstract

The ratio of leaf to sapwood area generally decreases with tree size, presumably to moderate hydraulic costs of tree height. This study assessed consequences of tree size and leaf area on water flux in Quercus garryana Dougl. ex. Hook (Oregon White Oak), a species in which leaf to sapwood area ratio increases with tree size. We tested hypotheses that Q. garryana individuals of greater size and leaf area show reduced leafspecific hydraulic conductance, crown water flux per leaf area, and carbon isotope discrimination.

Keywords

quercus, sap flow, transpiration, xylem

Citation

Phillips, N.; Bond, B. J.; McDowell, N. G.; Ryan, Michael G.; Schauer, A. 2003. Leaf area compounds height-related hydraulic costs of water transport in Oregon White Oak trees. Functional Ecology. Vol. 17, no. 6 (Dec. 2003). p. 832-840.