IEGEBA 24053
INSTITUTO DE ECOLOGIA, GENETICA Y EVOLUCION DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Physiological regulation and efficient xylem water transport regulate diurnal water and carbon balances of tropical lianas
Autor/es:
CHEN, YA-JUN; FAN, ZE-XIN; LIN, HUA; SCHNITZER, STEFAN A.; GOLDSTEIN, GUILLERMO; ZHANG, JIAO-LIN; ZHANG, YONG-JIANG; TOMLINSON, KYLE W.; CAO, KUN-FANG
Revista:
FUNCTIONAL ECOLOGY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Año: 2017 vol. 31 p. 306 - 317
ISSN:
0269-8463
Resumen:
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 (
