The search function on ResearchGate was not so useful this time, but if you search on Google Scholar for "leaf ecophysiological parameters Eucalyptus" you will get ~15000 articles listed. I'm sure your institution's librarians can help you look up some articles for you.
My undergraduate studies included a subject with Russell Sinclair who did plenty of ecophysiology on eucalypts if you care to look up his work eg
Miller, AC et al 2003 Does water status of Eucalyptus largiflorens (Myrtaceae) affect infection by the mistletoe Amyema miquelii (Loranthaceae)? FUNCTIONAL PLANT BIOLOGY 30, 12, 1239-1247 DOI: 10.1071/FP03117
Guo and Sinclair 1993 Comparative Leaf Water Potentiais Of Plants In Burnt And Unburnt Dry Sclerophyll Vegetation. Australian Journal Of Botany 41, 6, Page661-671. Doi10.1071/Bt9930661.