Search Results - "O'GRADY, A. P"

Are gas exchange responses to resource limitation and defoliation linked to source:sink relationships? by PINKARD, E. A, EYLES, A, O'GRADY, A. P

“…Productivity of trees can be affected by limitations in resources such as water and nutrients, and herbivory. However, there is little understanding of their…”
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Can we predict groundwater discharge from terrestrial ecosystems using existing eco-hydrological concepts? by O'Grady, A. P., Carter, J. L., Bruce, J.

“…There is increasing recognition of the role that groundwater plays in the maintenance of ecosystem structure and function. As a result, water resources…”
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Root biomass distribution and soil properties of an open woodland on a duplex soil by Macinnis-Ng, C. M. O, Fuentes, S, O'Grady, A. P, Palmer, A. R, Taylor, D, Whitley, R. J, Yunusa, I, Zeppel, M. J. B, Eamus, D

“…Data on the distribution of root biomass are critical to understanding the ecophysiology of vegetation communities. This is particularly true when models are…”
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Effects of partial defoliation on closed canopy Eucalyptus globulus Labilladière: Growth, biomass allocation and carbohydrates by Quentin, A.G., Beadle, C.L., O’Grady, A.P., Pinkard, E.A.

“…▶ 4-year-old Eucalyptus globulus trees were able to tolerate 45% leaf removal. ▶ Trees responded by decreased branch senescence in the lower crown. ▶…”
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Evapotranspiration from Eucalypt Open-Forest Savanna of Northern Australia by Hutley, L. B., O'Grady, A. P., Eamus, D.

“…1. Using three independent methods (eddy covariance, heat pulse and open-top chambers), diurnal and seasonal measurements of evapotranspiration were made in a…”
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Temporal and spatial changes in fine root distributions in a young Eucalyptus globulus stand in southern Tasmania by O’Grady, A.P., Worledge, D., Battaglia, M.

“…Eucalyptus globulus (Labill.) is an important plantation tree species within Australia and in Mediterranean climates throughout the world. Despite this, very…”
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Transpiration increases during the dry season: patterns of tree water use in eucalypt open-forests of northern Australia by O'Grady, A.P, Eamus, D, Hutley, L.B

“…Australian savannas exhibit marked seasonality in precipitation, with more than 90% of the annual total falling between October and May. The dry season is…”
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Determining soil and ground water use of vegetation from heat pulse, water potential and stable isotope data by Cook, P.G, O'Grady, A.P

“…A simple model of water uptake by vegetation is used to aid the discrimination of plant water sources determined with isotope data. In the model, water…”
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Daily and seasonal patterns of carbon and water fluxes above a north Australian savanna by Eamus, D, Hutley, L B, O'Grady, A P

“…Daily and seasonal fluxes of carbon dioxide and water vapor above a north Australian savanna were recorded over a complete dry season-wet season annual cycle…”
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Above- and below-ground relationships, with particular reference to fine roots, in a young Eucalyptus globulus (Labill.) stand in southern Tasmania by O'Grady, A.P, Worledge, D, Battaglia, M

“…Allometric relationships are important descriptors of tree form and are often used to scale physiological process measured at the individual tree scale to the…”
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Seasonal patterns of foliage respiration in dominant and suppressed Eucalyptus globulus canopies by O'Grady, A.P, Eyles, A, Worledge, D, Battaglia, M

“…We examined spatial and temporal dynamics of foliage respiration in canopies of dominant and suppressed Eucalyptus globulus trees to better understand…”
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Co-ordination of growth, gas exchange and hydraulics define the carbon safety margin in tree species with contrasting drought strategies by Mitchell, P J, O'Grady, A P, Tissue, D T, Worledge, D, Pinkard, E A

“…Gas exchange, growth, water transport and carbon (C) metabolism diminish during drought according to their respective sensitivities to declining water status…”
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Monsoonal Influences on Evapotranspiration of Savanna Vegetation of Northern Australia by Hutley, L. B., O'Grady, A. P., Eamus, D.

“…Data from savannas of northern Australia are presented for net radiation, latent and sensible heat, ecosystem surface conductance (Gs) and stand water use for…”
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Comparative water use by the riparian trees Melaleuca argentea and Corymbia bella in the wet-dry tropics of northern Australia by O'Grady, A.P, Eamus, D, Cook, P.G, Lamontagne, S

“…We examined sources of water and daily and seasonal water use patterns in two riparian tree species occupying contrasting niches within riparian zones…”
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Interactive effects of water supply and defoliation on photosynthesis, plant water status and growth of Eucalyptus globulus Labill by Quentin, A G, O'Grady, A P, Beadle, C L, Mohammed, C, Pinkard, E A

“…Increased climatic variability, including extended periods of drought stress, may compromise on the health of forest ecosystems. The effects of defoliating…”
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Convergence of tree water use within an arid-zone woodland by O'Grady, A. P, Cook, P. G, Eamus, D, Duguid, A, Wischusen, J. D. H, Fass, T, Worldege, D

“…We examined spatial and temporal patterns of tree water use and aspects of hydraulic architecture in four common tree species of central Australia--Corymbia…”
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Characterising groundwater use by vegetation using a surface energy balance model and satellite observations of land surface temperature by Gow, L.J., Barrett, D.J., Renzullo, L.J., Phinn, S.R., O'Grady, A.P.

“…This study presents a novel ‘model-data’ approach to detect groundwater-dependent vegetation (GDV), through differences in modelled and observed land surface…”
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Innovation in the forest industry: ready or not by Pinkard, E. A., O'grady, A. P.

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Looking forward, looking back: capturing drought in flagrante delicto and uncovering its broader consequences for forest ecosystems by O'Grady, A P, Mitchell, P J

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Estimating forest net primary production under changing climate: adding pests into the equation by Pinkard, E A, Battaglia, M, Roxburgh, S, O'Grady, A P

“…The current approach to modelling pest impacts on forest net primary production (NPP) is to apply a constant modifier. This does not capture the large spatial…”
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