
TY  - JOUR
A1  - McClenahan, Kate 
A1  - Macinnis-Ng, Catriona 
A1  - Eamus, Derek 
T1  - Hydraulic architecture and water relations of several species at diverse sites around Sydney
JF  - Australian Journal of Botany
JO  - Aust. J. Bot.
Y1  - 2004
VL  - 52
IS  - 4
SP  - 509
EP  - 518
KW  - 
UR  - https://doi.org/10.1071/BT03123 
N2  - Seasonal comparisons of leaf water potential, root biomass, hydraulic architecture, xylem embolism and xylem dimensions were made for eight woody species in four diverse habitats (mangroves, coastal heathland, ridge-top woodland and river-flat woodland). In most comparisons, pre-dawn and minimum leaf water potentials were lower in winter than in summer, a result attributed to lower rainfall and a smaller root biomass in winter than in summer. Branch hydraulic conductivities (per unit transverse area, sapwood area or leaf area) were generally larger in summer than in winter across all species in all habitats. An inverse relationship between Huber value and conductivity was observed across all four habitats. Increased solar radiation and evaporative demand in the summer was associated with an increased percentage loss of xylem conductance arising from embolism, compared with winter. These results are discussed in the context of patterns and relationships among water relations, microclimate and hydraulic architecture. 
ER  -

