Skip to Main Content
-
Hydraulic redistribution of soil water in two old-growth coniferous forests: quantifying patterns and controls.
Author(s): J.M. Warren; F.C. Meinzer; J.R. Brooks; J.-C. Domec; R. Coulombe
Date: 2006
Source: New Phytologist. 173: 753-765
Publication Series: Scientific Journal (JRNL)
PDF: Download Publication (2.55 MB)Description
We incorporated soil/plant biophysical properties into a simple model to predict seasonal trajectories of hydraulic redistribution (HR). We measured soil water content, water potential root conductivity, and climate across multiple years in two old-growth coniferous forests. The HR variability within sites (0 to 0.5 mm/d) was linked to spatial patterns of roots, soil moisture, and climate. The HR seasonally accounted for up to 9 percent of daily water use, peaking at 0.16 mm/d (ponderosa pine) or 0.30 mm/d(Douglas-fir), then declining as modeled pathway conductance dropped with increasing root cavitation. Patterns of HR were attributed to variability in water potential gradients and conductivity within the root system.Publication Notes
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- 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.
Citation
Warren, J.M.; Meinzer, F.C.; Brooks, J.R.; Domec, J.-C.; Coulombe, R. 2006. Hydraulic redistribution of soil water in two old-growth coniferous forests: quantifying patterns and controls. New Phytologist. 173: 753-765Keywords
Douglas-fir (Pseudotsuga menziesii), hydraulic lift, hydraulic redistribution, ponderosa pine (Pinus ponderosa), root conductivity, soil water content, water potentialRelated Search
- Hydraulic redistribution of water from Pinus ponderosa trees to seedlings: evidence for an ectomycorrhizal pathway.
- In situ separation of root hydraulic redistribution of soil water from liquid and vapor transport
- Converging patterns of uptake and hydraulic redistribution of soil water in contrasting woody vegetation types.
XML: View XML
Show More
Show Fewer
https://www.fs.usda.gov/treesearch/pubs/29719