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Updated: May 25, 2026
08:31
The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees
Published on: December 27, 2017
Carbon dynamics in trees: feast or famine?
Anna Sala1, David R Woodruff, Frederick C Meinzer
1Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA. sala@mso.umt.edu
Tree Physiology
|February 4, 2012
Summary
Trees store carbon (C) compounds as a regulated safety margin to maintain hydraulic transport, especially during stress. This storage is crucial for tree survival and growth under changing climates.
Area of Science:
- Plant physiology
- Forest ecology
- Climate change biology
Background:
- Increasing drought-related tree mortality highlights the need to understand carbon (C) dynamics.
- Disputes exist regarding the role of stored non-structural C compounds in tree growth and resource allocation.
- Understanding stored C functions is key to resolving uncertainties in tree physiological responses to climate change.
Purpose of the Study:
- To investigate the regulatory mechanisms and functions of non-structural C storage in trees.
- To propose that stored C acts as a regulated safety margin for hydraulic transport, especially under environmental stress.
- To explore the relationship between C storage, tree size, and environmental factors like drought and cold.
Main Methods:
- The study proposes a hypothesis based on existing research and observational trends.
- It synthesizes findings related to carbon allocation, tree physiology, and environmental constraints.
- Further empirical research is suggested to validate the proposed functions of stored C.
Main Results:
- Stored non-structural C compounds may be actively regulated, not just a passive buffer.
- Large C investments in storage pools may serve as crucial safety margins for long-lived trees.
- Increased non-structural carbohydrate concentrations with tree size, drought, or cold support the hypothesis.
Conclusions:
- Regulated maintenance of stored C pools is hypothesized to be essential for maintaining hydraulic integrity.
- Thresholds for C storage likely vary by tissue, species, environment, and growth form.
- Future research should focus on the active vs. passive nature of C allocation and specific storage functions.
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