Journal
TREE PHYSIOLOGY
Volume 31, Issue 1, Pages 22-29Publisher
OXFORD UNIV PRESS
DOI: 10.1093/treephys/tpq104
Keywords
mixed-effect models; pipe model theory; sapwood taper
Categories
Funding
- Gestion foretiere du Saint Maurice Inc.
- Petawawa Research Forest
- Fonds quebecois pour la recherche sur la nature et les technologies
- NSERC Strategic Network on forest management
Ask authors/readers for more resources
The relationship between sapwood area and foliage biomass is the basis for a lot of research on eco-phyisology. In this paper, foliage biomass change between two consecutive whorls is studied, using different variations in the pipe model theory. Linear and non-linear mixed-effect models relating foliage differences to sapwood area increments were tested to take into account whorl location, with the best fit statistics supporting the non-linear formulation. The estimated value of the exponent is 0.5130, which is significantly different from 1, the expected value given by the pipe model theory. When applied to crown stem sapwood taper, the model indicates that foliage biomass distribution influences the foliage biomass to sapwood area at crown base ratio. This result is interpreted as being the consequence of differences in the turnover rates of sapwood and foliage. More importantly, the model explains previously reported trends in jack pine sapwood area at crown base to tree foliage biomass ratio.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available