October 10, 2025Forest Science

Heat-Pulse Velocity and Bordered Pit Condition in Living Engelmann Spruce and Lodgepole Pine Trees

View Full Paper

Ask AI

Bookmark

Authors

WMWalter R. MarkCalifornia Polytechnic State University DCDonald L. Crews

Discussion

Member takes

Implication

Observational analysis correlates sap movement and bordered pit condition in Engelmann spruce and Lodgepole pine, suggesting key insights for tree physiology.

Key Points

Heat-pulse velocity measurements reveal a peak flow of sap movement around 30 to 42 mm from the cambium, indicating sap dynamics.
Bordered pits in the region of peak sap movement were not aspirated and only partially incrusted, highlighting structural differences.
Pits near the cambium were immature and nearly imperforate, while those deeper in the tree showed a high frequency of aspiration.
This analysis supports understanding of tree water transport mechanics and the structural adaptations of wood.

Cite This Study

Mark et al. (1973) studied this question.

synapsesocial.com/papers/68e865147ef2f04ca37e51b0 https://doi.org/10.1093/forestscience/19.4.291

View Full Paper

Ask AI

Bookmark

Implication

Observational analysis correlates sap movement and bordered pit condition in Engelmann spruce and Lodgepole pine, suggesting key insights for tree physiology.

Heat-Pulse Velocity and Bordered Pit Condition in Living Engelmann Spruce and Lodgepole Pine Trees

Discussion

Member takes

Implication

Key Points

Cite This Study

Heat-Pulse Velocity and Bordered Pit Condition in Living Engelmann Spruce and Lodgepole Pine Trees

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider