Browsing by Author "Campbell, David I."

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  • Assessment of the ecohydrological functioning of Otakairangi Wetland, Northland

    Campbell, David I. (Environmental Research Institute, The University of Waikato, 2017)
    Otakairangi is the largest wetland remnant on the floodplain of Northland’s Wairua River near Hikurangi. Extensive peat deposits many metres deep accumulated over thousands of years on the valley floors of the Otakairangi ...
  • 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 balance of an intensively grazed temperate pasture in two climatically contrasting years

    Mudge, Paul Lawrence; Wallace, Dirk Fraser; Rutledge, Susanna; Campbell, David I.; Schipper, Louis A.; Hosking, C.L. (Elsevier, 2011)
    Grazed grasslands occupy 26% of the earth's ice free land surface and are therefore an important component of the global C balance. In New Zealand, pastoral agriculture is the dominant land use and recent research has shown ...
  • Carbon stable isotopes as a palaeoclimate proxy in vascular plant dominated peatlands

    Amesbury, Matthew J.; Charman, Dan J.; Newnham, Rewi M.; Loader, N. J.; Goodrich, Jordan Paul; Royles, Jessica; Campbell, David I.; Roland, Thomas P.; Gallego-Sala, Angela (PERGAMON-ELSEVIER SCIENCE LTD, 2015-09)
    Carbon stable isotope (δ¹³C) records from vascular plant dominated peatlands have been used as a palaeoclimate proxy, but a better empirical understanding of fractionation processes in these ecosystems is required. Here, ...
  • Changes in soil carbon stocks of New Zealand’s grazed pasture in response to variations in management and environmental factors.

    Kirschbaum, Miko U.F.; Rutledge, Susanna; Mudge, Paul Lawrence; Puche, Nicholas; Schipper, Louis A.; Campbell, David I. (Fertilizer and Lime Research Centre, Massey University, Palmerston North, New Zealand., 2015)
    Dairy farming is New Zealand‟s pre-eminent primary industry. It achieves large export earnings but is also responsible for a large proportion of the country‟s greenhouse gas emissions. One of those greenhouse gases is CO₂, ...

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