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OOS-11: Hydraulic limitations in vascular plants
Monday,
August 8, 1:30 PM - 5 PM, Meeting Rooms 511c and 511f, Level 5, Palais
des congrès de Montréal
Organizers:
Frank Berninger (Beringer.Frank@Uqam.ca),
Luc Lauzon, Eero Nikinmaa
Description: Water
transport in trees and its implications for tree growth and functioning have
long been topics of discussion in physiological ecology. We know now that this
transport is taking place at large negative pressures (or water tensions) and
that the hydraulic pipeline of trees is vulnerable to drought. We start to
understand the linkages between different scales of functioning from cellular to
ecosystem level. We can also see these scales in time: hydraulic functioning of
trees has implications for the development of trees with response mechanisms
ranging from minutes, as stomatal closure, to decades for long-term effects of
allocation changes. In the past years, there has been more emphasis on the
understanding of these tradeoffs and scales, with work on scaling laws and a
deeper understanding of hydraulic limitations in large plants. This oral session
will bring together different aspects on tree growth and ecology across these
scales.
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