Water-use efficient plantations - Forest and Wood Products Australia

More documents

Recommendations

Info

List of Acronyms and Symbols Symbol or Acronym Definition Units (if applicable) Ww Water-use efficiency of wood production or volume growth per unit of evapotranspiration M 3 ML -1 Et Evapotranspiration – the sum of transpiration, soil evaporation and canopy rainfall interception mm A Net carbon assimilation μmol m -2 s -1 E Instantaneous leaf transpiration A/E=Wi pi pa es ea Instantaneous leaf scale water-use efficiency - net carbon assimilation per unit transpiration CO2 partial pressure inside the leaf CO2 partial pressure immediately outside the leaf Vapour pressure inside the leaf Vapour pressure imposed at the leaf surface mmol m -2 s -1 μmol CO2 mmol H2O -1 ppm ppm kPa kPa Y Yield G of dry matter harvested E (in Passioura 1977, equation (2)) Water-use (at any scale) mL water-used WUE Water-use efficiency G mL -1 HI Proportion of dry matter allocated to the harvestable unit of biomass – Harvest Index I Canopy interception mm Es Evaporation direct from the soil surface E(stand) Transpiration by a plantation Dimensionless (g g -1 ) mm mm P Rainfall mm i
Symbol or Acronym Definition Units (if applicable) E0 Potential evaporation mm CWI Climate wetness index, ratio of P to E0 Wmax Maximum soil water storage ΔM Change is soil water storage between measurement times CAI Current annual volume increment K Crop factor, the ratio of actual evapotranspiration to potential evaporation Dimensionless mm mm M 3 ha -1 Dimensionless ii
Page 1 and 2: SUSTAINABILITY & RESOURCES PROJECT
Page 3: Publication: Water-use efficient pl
Page 7 and 8: • For plantations in Mediterranea
Page 9 and 10: Background and scope There are near
Page 11 and 12: The constant 1.6 is the relative di
Page 13 and 14: either the supply of water or nutri
Page 15 and 16: transpiration efficiency was either
Page 17 and 18: 3. Management effects on the water-
Page 20 and 21: Table 3. Details for study sites in
Page 22 and 23: 3.3 Observed variation in the water
Page 24 and 25: first application of nitrogen. The
Page 26 and 27: water stress was also noted by (Mye
Page 28 and 29: 3.1. Management options for managin
Page 30 and 31: References Aitken, S.N., Kavanagh,
Page 32 and 33: Medhurst, J.L., Battaglia, M. and B
Page 34: Acknowledgements This report includ

Water-use efficient plantations - Forest and Wood Products Australia

Create successful ePaper yourself

Delete template?

Save as template?