Misplaced Pages

Canopy conductance, commonly denoted ${\displaystyle g_{c}}$, is a dimensionless quantity characterizing radiation distribution in tree canopy. By definition, it is calculated as a ratio of daily water use to daily mean vapor pressure deficit (VPD). Canopy conductance can be also experimentally obtained by measuring sap flow and environmental variables. Stomatal conductance may be used as a reference value to validate the data, by summing the total stomatal conductance ${\displaystyle g_{s}}$ of all leaf classes within the canopy.

${\displaystyle g_{c}=\sum _{layer_{1}}^{layer_{N}}(g_{s,sun}^{i}\cdot l_{sun}^{i})+(g_{s,shade}\cdot l_{shade})}$

See also

• Ecohydrology
• Stomatal conductance
• Transpiration

References

1. Callander, B.A.; Woodhead, T. "Canopy conductance of estate tea in Kenya". Elsevier. Archived from the original on 2014-01-15. Retrieved 2014-01-15.
2. Morris, Jim; Mann, Louise; Collopy, John (1998). "Transpiration and canopy conductance in a eucalypt plantation using shallow saline groundwater". Tree Physiology. 18 (8–9): 547–555. doi:10.1093/treephys/18.8-9.547. PMID 12651341.
3. WIMOVAC (1998). "WIMOVAC Canopy Processes Module". University of Illinois.

This plant physiology article is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

• Plant physiology
• Plant physiology stubs