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Article: Increased photosynthesis offsets costs of allocation to sapwood in an arid environment.
- Article from:
- Ecology
- Article date:
- October 1, 1998
- Author:
CopyrightCOPYRIGHT 1998 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
The balance between biomass allocated to photosynthetic vs. heterotrophic tissue largely determines forest growth and productivity and can be affected by climate (Waring and Schlesinger 1985, Gower et al. 1995). For example, in warm, dry environments trees allocate proportionally more biomass to sapwood and less to foliage than in cooler, moister environments, both among species (Waring and Schlesinger 1985) and within a species (Callaway et al. 1994, Mencuccini and Grace 1995). Proportional changes in leaf: sapwood area ratios within a species may provide a constant water potential within tree stems in environments with different evaporative demands ...
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