A solid phase microextraction method to fingerprint dissolved organic carbon released from Eucalyptus camaldulensis (Dehnh.) (River Red Gum) leaves

2005 ◽  
Vol 530 (2) ◽  
pp. 325-333 ◽  
Author(s):  
Alek Zander ◽  
Andrea G. Bishop ◽  
Paul D. Prenzler
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Eucalyptus Camaldulensis ◽  
Eucalyptus Camaldulensis Dehnh ◽  
River Red Gum

Pyrophosphate and orthophosphate addition to soils: sorption, cation concentrations, and dissolved organic carbon

Soil Research ◽  
2007 ◽  
Vol 45 (4) ◽  
pp. 237 ◽  
Author(s):  
T. M. McBeath ◽  
E. Lombi ◽  
M. J. McLaughlin ◽  
E. K. Bünemann
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Calcium Concentration ◽  
Solid Phase ◽  
Iron Concentration ◽  
Solution Chemistry ◽  
Soil Types ◽  
Significant Yield ◽  
Complexation Reactions ◽  
Soil Solid Phase

Liquid polyphosphate fertilisers contain both orthophosphate and pyrophosphate, and have shown significant yield increases compared to granular orthophosphate fertiliser on highly phosphorus (P) fixing soils. The P sorption chemistry of the dominant P species in a polyphosphate fertiliser (pyrophosphate and orthophosphate) was compared on a range of Australian soils, and the effect of these P species on equilibrium solution chemistry was also examined. Phosphorus supplied as pyrophosphate had a stronger sorption affinity than orthophosphate in all soils. The greater efficiency of pyrophosphate-based fertiliser on some soil types is therefore not due to reduced sorption of this P supplied as pyrophosphate compared to P supplied as orthophosphate fertiliser. In general, the addition of pyrophosphate to soil resulted in a larger decrease in calcium concentration in solution compared to orthophosphate. In contrast, there was an increase in iron concentration in solution with pyrophosphate addition, indicating sequestration reactions associated with the dissolution of dissolved organic carbon into soil solution. The pyrophosphate ion generally mobilised more Fe into solution than orthophosphate in several soils, likely through complexation reactions leading to Fe desorption/dissolution from the soil solid phase. These findings highlight the differences in soil chemical reactions that occur with the addition of polyphosphate fertilisers, which may contribute to their yield advantage in some soil types.

Responses of clonal river red gum (Eucalyptus camaldulensis) to waterlogging by fresh and salt water

1997 ◽  
Vol 37 (2) ◽  
pp. 243 ◽  
Author(s):  
K. Akilan ◽  
R. C. C. Farrell ◽  
D. T. Bell ◽  
J. K. Marshall
Keyword(s):  
Stomatal Conductance ◽  
Gas Exchange ◽  
Fresh Water ◽  
Water Use ◽  
Salt Water ◽  
Eucalyptus Camaldulensis ◽  
Soil Surface ◽  
Saline Groundwater ◽  
Eucalyptus Camaldulensis Dehnh ◽  
River Red Gum

Summary. Effects of waterlogging by fresh and salt water on growth, water use, stomatal conductance and net gas exchange of 2 clones (M80 and M66) of river red gum (Eucalyptus camaldulensis Dehnh.) were studied under glasshouse conditions for 16 weeks over winter. Both clones tolerated extended periods of waterlogging with fresh water without effects on growth, stomatal conductance or net gas exchange. Formation of adventitious roots in the soil surface under waterlogging with fresh water was earlier in clone M80 than clone M66, as was recovery in water use. Thus, clone M80 may be more tolerant of soil saturation with fresh water than clone M66. In contrast, clone M66 may be more suited to saline conditions. Greater uptake of Na+ and Cl- occurred in clone M80. Lower water uptake of salt water and possibly greater tissue tolerance of salt by clone M66 may lead to greater survival under conditions where plants use saline groundwater. The results suggest that clone M80 would survive and utilise water when planted further upslope of highly salinised areas, with clone M66 better able to survive closer to such areas. The variation demonstrated between clones of E. camaldulensis indicates closer matching of their reclamation potential and the environmental conditions of damaged catchments should be possible.

scholarly journals Characterisation of Adaptive Genetic Diversity in Environmentally Contrasted Populations of Eucalyptus camaldulensis Dehnh. (River Red Gum)

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e103515 ◽  
Author(s):  
Shannon Dillon ◽  
Rachel McEvoy ◽  
Darren S. Baldwin ◽  
Gavin N. Rees ◽  
Yvonne Parsons ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Eucalyptus Camaldulensis ◽  
Adaptive Genetic Diversity ◽  
Eucalyptus Camaldulensis Dehnh ◽  
River Red Gum

scholarly journals Influence of NaCl-salinity on Pb-uptake behavior and growth of River Red gum tree (Eucalyptus camaldulensis Dehnh.)

2016 ◽  
Vol 40 ◽  
pp. 425-432 ◽  
Author(s):  
Muhammad Farrakh NAWAZ ◽  
Sadaf GUL ◽  
Muhammad Ayyoub TANVIR ◽  
Javaid AKHTAR ◽  
Samira CHAUDARY ◽  
...  
Keyword(s):  
Eucalyptus Camaldulensis ◽  
Nacl Salinity ◽  
Eucalyptus Camaldulensis Dehnh ◽  
River Red Gum
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