Search Results - "Clough, T.J"
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Nitrous oxide emissions and biogeochemical responses to soil freezing-thawing and drying-wetting
Published in Soil biology & biochemistry (01-02-2018)“…Soil freeze-thaw (FT) and dry-wet (DW) cycles are brief transitory biophysical changes, but these events have important implications in determining the timing…”
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Unweathered Wood Biochar Impact on Nitrous Oxide Emissions from a Bovine-Urine-Amended Pasture Soil
Published in Soil Science Society of America journal (01-05-2010)“…Low-temperature pyrolysis of biomass produces a product known as biochar. The incorporation of this material into the soil has been advocated as a C…”
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3
Evaluation of the stable isotope signatures of nitrate to detect denitrification in a shallow groundwater system in New Zealand
Published in Agriculture, ecosystems & environment (01-04-2015)“…•Stable isotopes of nitrate detected denitrification in shallow, young, groundwater.•Denitrification was shown to be seasonal.•Understanding the age of…”
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4
Impact of short-interval, repeat application of dicyandiamide on soil N transformation in urine patches
Published in Agriculture, ecosystems & environment (01-03-2013)“…► Biogeochemistry of N in pastoral soil was examined using molecular and chemical tools. ► Urine-stimulated nitrification, denitrification and primed soil…”
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The temperature dependence of dicyandiamide (DCD) degradation in soils: A data synthesis
Published in Soil biology & biochemistry (01-07-2008)“…Dicyandiamide (DCD, C 2H 4N 4) is a nitrification inhibitor that has been studied for more than 80 years. However, there are few papers that have examined the…”
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Denitrification in vadose zone material amended with dissolved organic matter from topsoil and subsoil
Published in Soil biology & biochemistry (01-06-2013)“…Limited information is available on the potential of subsoil and underlying alluvial gravels (vadose zone) to denitrify leached nitrate, though it is…”
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review of the movement and fate of N₂O in the subsoil
Published in Nutrient cycling in agroecosystems (01-05-2005)“…Understanding the fate of N2O in the subsoil is important in accurately assessing the direct and indirect fluxes of N2O to the environment. The production,…”
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8
Using stable isotopes to follow excreta N dynamics and N2O emissions in animal production systems
Published in Animal (Cambridge, England) (01-06-2013)“…Nitrous oxide (N2O) is a potent greenhouse gas and the dominant anthropogenic stratospheric ozone-depleting emission. The tropospheric concentration of N2O…”
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Impact of bovine urine deposition on soil microbial activity, biomass, and community structure
Published in Applied soil ecology : a section of Agriculture, ecosystems & environment (01-01-2010)“…Nitrogen (N) from urine excreted by grazing animals can be transformed into N compounds that have detrimental effects on the environment. These include…”
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Short-term consequences of spatial heterogeneity in soil nitrogen concentrations caused by urine patches of different sizes
Published in Applied soil ecology : a section of Agriculture, ecosystems & environment (01-07-2009)“…The scale of spatial heterogeneity in soil nitrogen (N) concentrations varies considerably in grazed systems, because grazers vary in the volume of urine they…”
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Diffusion of 15N-labelled N2O into soil columns: a promising method to examine the fate of N2O in subsoils
Published in Soil biology & biochemistry (01-06-2006)“…Nitrous oxide research has generally focused directly on measuring fluxes of N2O from the soil surface. The fate of N2O in the subsoil has often been placed in…”
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12
Vertical stratification of redox conditions, denitrification and recharge in shallow groundwater on a volcanic hillslope containing relict organic matter
Published in The Science of the total environment (15-10-2018)“…Natural denitrification in groundwater systems has been recognised as an ecosystem service that reduces the impact of agriculturally-derived nitrate inputs to…”
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13
Real-time, high-resolution quantitative measurement of multiple soil gas emissions: Selected ion flow tube mass spectrometry
Published in Journal of environmental quality (01-03-2002)“…A new technique is presented for the rapid, high-resolution identification and quantification of multiple trace gases above soils, at concentrations down to…”
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Biochar does not affect soil N-transformations or microbial community structure under ruminant urine patches but does alter relative proportions of nitrogen cycling bacteria
Published in Agriculture, ecosystems & environment (15-06-2014)“…•Biochar amendment did not affect the microbial community structure.•Biochar presence increased the relative abundance of 50% of the detected bacteria.•Biochar…”
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Fate of urine nitrogen on mineral and peat soils in New Zealand
Published in Plant and soil (01-01-1996)“…A field lysimeter experiment was conducted over 150 days to examine the fate of synthetic urinary nitrogen (N) applied to peat and mineral soils, with and…”
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Footprints in the Soil, People and Ideas in Soil History: Benno P. Warkentin (Editor)
Published in Soil Science Society of America journal (01-03-2007)Get full text
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17
Denitrification in the shallow groundwater system of a lowland catchment: A laboratory study
Published in Catena (Giessen) (01-08-2015)“…Evidence for the occurrence of denitrification in shallow groundwater systems in New Zealand (NZ) is poorly documented; however, an observational study of the…”
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A hydrochemically guided landscape classification system for modelling spatial variation in multiple water quality indices: Process-attribute mapping
Published in The Science of the total environment (01-07-2019)“…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…”
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Urine patch and fertiliser N interaction: Effects of fertiliser rate and season of urine application on nitrate leaching and pasture N uptake
Published in Agriculture, ecosystems & environment (01-05-2015)“…•We measured the effects of fertiliser-N+urine on NO3− leaching and plant N uptake.•Urine+the higher fertiliser rate (400kg Nha−1) increased total NO3−…”
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Effects of aggregate size, soil compaction, and bovine urine on N2O emissions from a pasture soil
Published in Soil biology & biochemistry (01-04-2008)“…The dominant N2O emission source in New Zealand, calculated using the Intergovernmental Panel on Climate Change methodology, is agricultural soils. The largest…”
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