Reducing radiation levels by 70% with a hessian cloth only cut transpiration by individual trees by about 10% compared with unshaded plants.
Evidence presented above decreases the likelihood that alterations in canopy processes such as photosynthesis and transpiration are responsible for these changes at the forest edge.
In principle, gt was computed as the ratio between transpiration rate and the water vapour concentration difference between the leaf interior and the outside air.
In other words, do plants that limit transpiration by having lower stomatal conductance exhibit less negative cleaf ?
The material of the bags did not interfere with transpiration and photosynthesis.
We also observed substantial night-time transpiration (positive sap flow during the night).
The 24-h integrated values of sap flow were considered as representative of the daily transpiration of each plant.
Transpiration rates would then have been increased without corresponding increases in dry matter production.
