Browsing by Author "Campbell, David I."
Now showing items 1-5 of 23
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Assessment of the ecohydrological functioning of Otakairangi Wetland, Northland
(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
(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
(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
(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.
(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, ...
Co-authors for David I. Campbell
Supervised by David I. Campbell
Showing up to 5 theses - most recently added to Research Commons first.
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The impact of maize silage production and supplementary feed use on the carbon balance of New Zealand dairy farms
(The University of Waikato, 2021)Globally, agriculture contributes 10-12% to anthropogenic greenhouse gas (GHG) emissions. Consequently, mitigation of agricultural GHGs has taken on increased importance, particularly in countries like New Zealand where ... -
Paddock scale nitrous oxide emissions from intensively grazed pasture: Quantification and mitigation
(The University of Waikato, 2021)Agricultural soils are the main contributor to global emissions of the potent greenhouse gas nitrous oxide (N₂O) to the atmosphere. Nitrous oxide can absorb and transform radiative energy emitted from the sun to earth into ... -
Fluxes of carbon dioxide and water vapour at a Waikato peat bog
(The University of Waikato, 2003)New Zealand wetlands are threatened entities and the remaining 15% of pre-European freshwater wetlands are important refuges for plant and animal species, while also providing historical information on past environmental ... -
The influence of fire on vegetation dynamics of a New Zealand restiad bog
(The University of Waikato, 2020)New Zealand restiad bogs have a history of natural fire, yet little is known about their fire ecology compared to other frequently burnt ecosystems. Previous research has identified general vegetation recovery trends, but ... -
Spatiotemporal variability of hydrology in Moanatuatua drained peatland and its influence on CO₂ emissions and surface oscillations
(The University of Waikato, 2020)Drained agricultural peatlands can be highly productive but problematic ecosystems, including releasing substantial carbon dioxide (CO₂) emissions to the atmosphere as peat decomposes. The ongoing and permanent loss of ...
