Physiological regulation and efficient xylem water transport regulate diurnal water and carbon balances of tropical lianas

Summary Tropical lianas deploy most of their leaves towards the top of the forest canopy, whereas trees exhibit a more stratified crown. Forest canopies are often exposed to hot and windy conditions, and how lianas cope with the extremely high transpirational demands under these environments remains...

Full description

Saved in:
Bibliographic Details
Published in:Functional ecology 2017-02, Vol.31 (2), p.306-317
Main Authors: Chen, Ya-Jun, Schnitzer, Stefan A., Zhang, Yong-Jiang, Fan, Ze-Xin, Goldstein, Guillermo, Tomlinson, Kyle W., Lin, Hua, Zhang, Jiao-Lin, Cao, Kun-Fang
Format: Article
Language:English
Subjects:
Canopies
Cavitation
Conductance
Diurnal
Drought resistance
drought tolerance
Environmental regulations
Evergreen trees
Flux density
Forests
Herbivores
Hydraulic properties
Leaves
Lianas
Photosynthesis
Physiology
Plant physiological ecology
Resistance
sap flow
Species
Specific conductivity
Stomata
Stomatal conductance
stomatal regulation
Transpiration
Transport
Trees
Tropical forests
Turgor
Vapor pressure
Water potential
Water relations
Water transport
Xylem
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Summary Tropical lianas deploy most of their leaves towards the top of the forest canopy, whereas trees exhibit a more stratified crown. Forest canopies are often exposed to hot and windy conditions, and how lianas cope with the extremely high transpirational demands under these environments remains unknown. We investigated stem hydraulic properties, leaf drought tolerance, diurnal changes in leaf and stem water potentials (Ψleaf and Ψstem), stomatal conductance (gs), photosynthetic rate, sap flow and stem native percentage loss of conductivity (PLC) for four liana species in a tropical forest in southwest China. Five co‐occurring tree species were also selected for comparison. Lianas reached maximal transpiration at a relatively lower vapour pressure deficit (
ISSN:0269-8463
1365-2435
DOI:10.1111/1365-2435.12724