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Drought Traits Of Eucalyptus Gomphocephala In Yalgorup National Park, Paul L. Drake
Drought Traits Of Eucalyptus Gomphocephala In Yalgorup National Park, Paul L. Drake
Theses: Doctorates and Masters
Isohydric and anisohydric regulation of plant water status has been observed over several decades of field, glasshouse and laboratory studies, yet the functional significance and mechanism of both remain obscure. W e studied the seasonal trends in plant water status and hydraulic properties in a natural stand of Eucalyptus gomphocephala through cycles of varying environmental moisture (rainfall, groundwater depth, evaporative demand ) in order to test for isohydry and to provide physiological information for the mechanistic interpretation of seasonal trends in plant water status. Over a 16-month period of monitoring, spanning two summers, midday leaf water potential correlated with pre-dawn …
Environmental Correlates And Associations Of Tuart (Eucalyptus Gomphocephala) Decline, Todd A. Edwards
Environmental Correlates And Associations Of Tuart (Eucalyptus Gomphocephala) Decline, Todd A. Edwards
Theses: Doctorates and Masters
Tuart (Eucalyptus gomphocephala DC.) is an ecologically and culturally important tree species that grows across a narrow 400 km long coastal belt, from the Sabrina River south of Perth, to Jurien Bay in the north. Unfortunately, Tuart is also a species under considerable threat due to clearing, lack of recruitment and canopy decline. Canopy decline is of particular concern, being increasingly reported throughout the Tuart distribution. Despite this, previous studies of Tuart have generally been limited to localised canopy decline events. This two-phased study firstly involved an assessment of Tuart canopy condition at 46 sites across the species distribution. At …