Ontology highlight
ABSTRACT:
SUBMITTER: Dietrich L
PROVIDER: S-EPMC6177434 | biostudies-literature | 2018 Oct
REPOSITORIES: biostudies-literature
Dietrich Lars L Hoch Günter G Kahmen Ansgar A Körner Christian C
Scientific reports 20181009 1
The water status of transpiring tree crowns depends on a hydraulic continuum from the soil matrix around roots to the sub-stomatal cavity of leaves, with a multitude of hydraulic resistances along this path. Although the stem xylem path may not be the most critical of these resistances, it had been suggested that a >50% interruption of that path by drought-stress-induced embolization (air filling) of conduits is critical for tree survival. Here we show that cutting the sapwood of mature, 35 m ta ...[more]