Observations on drought damage to some nativeudplant species in eucalypt forests and woodlands near Hobart, Tasmania

摘要

A large number of shrub and tree species suffered damage in the Ridgeway and University Reserves nearudHobart, Tasmania during a prolonged drought. Damage was largely confined to shallow soils and gully margins onuddolerite, there being little or no damage on equivalent sites on sedimentary substrata. Intraspecific damage wasudinversely related to the heights of individuals for particular sites. Relative drought resistance is presented diagrammaticallyudfor 24 small shrub species and 17 tall shrub and tree species. Drought damage does not directly limit theuddistribution of most species observed in this study, although the patterns of relative drought resistance accord well withudspecies distribution in respect to available water.