Now showing items 1-5 of 11

  • Can oxygen stable isotopes be used to track precipitation moisture

    Amesbury, Matthew J.; Charman, Dan J.; Newnham, Rewi M.; Loader, Nwil J.; Goodrich, Jordan Paul; Royles, Jessica; Campbell, David I.; Keller, Elizabeth D.; Baisden, W. Troy; Roland, Thomas P.; Gallego-Sala, Angela V. (Elsevier, 2015-08-14)
    Variations in the isotopic composition of precipitation are determined by fractionation processes which occur during temperature- and humidity-dependent phase changes associated with evaporation and condensation. Oxygen ...
  • Carbon leaching from undisturbed soil cores treated with dairy cow urine

    Lambie, Suzanne Margaret; Schipper, Louis A.; Balks, Megan R.; Baisden, W. Troy (CSIRO, 2012)
    Solubilisation of soil carbon (C) under cow urine patches may lead to losses of soil C by priming or leaching. We investigated the solubilisation and bioavailability of soil C in undisturbed pasture soil treated with urine. ...
  • Changes in natural ¹⁵n abundance in pastoral soils receiving differing amounts of superphosphate fertilizer and irrigation for 50 years

    Mudge, Paul Lawrence; Schipper, Louis A.; Ghani, A.; Upsdell, M.; Baisden, W. Troy (Soil Science Society of American, 2013)
    Intensification of pastoral agriculture has led to increased N losses to the wider environment. This has led to an emphasis on improving our understanding of soil N dynamics, and development of management practices which ...
  • A comparison of different approaches for measuring denitrification rates in a nitrate removing bioreactor

    Warneke, Sören; Schipper, Louis A.; Bruesewitz, Denise A.; Baisden, W. Troy (Elsevier, 2011)
    Denitrifying woodchip bioreactors (denitrification beds) are increasingly used to remove excess nitrate (NO₃⁻) from point-sources such as wastewater effluent or subsurface drains from agricultural fields. NO₃⁻ removal in ...
  • Correcting bulk density measurements made with driving hammer equipment

    Parfitt, R.L.; Ross, C.W.; Schipper, Louis A.; Claydon, J.J.; Baisden, W. Troy; Arnold, Greg (Elsevier, 2010)
    Accurate measurement of dry bulk density is critical for determining stocks of elements such as carbon or nitrogen, in soils. During investigations of changes of soil carbon with time, we resampled soil profiles for bulk ...

Showing up to 5 theses - most recently added to Research Commons first.

  • Soil carbon loss under pasture and pine: Responses to urine addition

    Lambie, Suzanne Margaret (University of Waikato, 2012)
    There have been reports of losses of soil carbon (C) in New Zealand pastures under dairy grazing. Acceleration of mineralisation or leaching of soil C following urine deposition may decrease soil C. However, little ...