The response of sap flow to pulses of rain in a temperate Australian woodland

Melanie Zeppel; Catrioina M.O. Macinnis-Ng; Chelcy R. Ford; Derek Eamus

The response of sap flow to pulses of rain in a temperate Australian woodland

Informally Refereed

Authors:	Melanie Zeppel, Catrioina M.O. Macinnis-Ng, Chelcy R. Ford, Derek Eamus
Year:	2008
Type:	Scientific Journal
Station:	Southern Research Station
Source:	Plant Soil (2008) 305:121?130

Download PDF (308 KB)

Abstract

In water-limited systems, pulses of rainfall can trigger a cascade of plant physiological responses. However, the timing and size of the physiological response can vary depending on plant and environmental characteristics, such as rooting depth, plant size, rainfall amount, or antecedent soil moisture. We investigated the influence of pulses of rainfall on the response of sap flow of two dominant evergreen tree species, Eucalyptus crebra (a broadleaf) and Callitris glaucophylla (a needle leaved tree), in a remnant open woodland in eastern Australia.

Keywords

Rain pulses, sap flow, Soil moisture, Threshold-delay model, Transpiration rate

Citation

Zeppel, Melanie; Macinnis-Ng, Catrioina M.O.; Ford, Chelcy R.; Eamus, Derek. 2008. The response of sap flow to pulses of rain in a temperate Australian woodland. Plant Soil (2008) 305:121 130