Now showing items 1-5 of 5
A hydrochemically guided landscape classification system for modelling spatial variation in multiple water quality indices: Process-attribute mapping
Spatial variation in landscape attributes can account for much of the variability in water quality relative to land use on its own. Such variation results from the coupling between the dominant processes governing water ...
Biogeochemistry and community ecology in a spring-fed urban river following a major earthquake
(Elsevier B.V., 2013-11)
In February 2011 a Mw 6.3 earthquake in Christchurch, New Zealand inundated urban waterways with sediment from liquefaction and triggered sewage spills. The impacts of, and recovery from, this natural disaster on the stream ...
Effects of denitrification and transport on the isotopic composition of nitrate (δ¹⁸O, δ¹⁵N) in freshwater systems
Nitrate isotopes (δ¹⁵N-NO₃⁻ and δ¹⁸O-NO₃⁻) are a potentially powerful tool for tracking the biological removal of reactive nitrogen (N) as it is transported from land to sea. However, uncertainties about, 1) the variability ...
Spatial and temporal variations in nitrogen export from a New Zealand pastoral catchment revealed by stream water nitrate isotopic composition
(AGU Publications, 2016-04)
Viable indicators of nitrogen (N) attenuation at the catchment scale are needed in order to sustainably manage global agricultural intensification. We hypothesized that the dominance of a single land use (pasture production) ...
Ammonia volatilisation is not the dominant factor in determining the soil nitrate isotopic composition of pasture systems
(Elsevier B.V., 2015-01-01)
© 2014 Elsevier B.V. Nitrate dual isotopes (δ¹⁵N-NO₃⁻ and δ¹⁸O-NO₃⁻) are increasingly used to assess the sources and sinks of nitrogen (N) pollution in freshwater systems. However, the application of this methodology to ...