Search Results - "Julian J. C. Dawson"

Assessing the influence of compost and biochar amendments on the mobility and toxicity of metals and arsenic in a naturally contaminated mine soil by Beesley, Luke, Inneh, Onyeka S., Norton, Gareth J., Moreno-Jimenez, Eduardo, Pardo, Tania, Clemente, Rafael, Dawson, Julian J.C.

“…Amending contaminated soils with organic wastes can influence trace element mobility and toxicity. Soluble concentrations of metals and arsenic were measured…”
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Carbon losses from soil and its consequences for land-use management by Dawson, Julian J.C., Smith, Pete

“…This paper reviews our current knowledge and understanding of carbon processes in the terrestrial ecosystem with a view to reducing soil carbon losses by…”
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Cu and Ni Mobility and Bioavailability in Sequentially Conditioned Soils by Maderova, Lenka, Dawson, Julian J. C, Paton, Graeme I

“…The potential ecological hazard of metals in soils may be measured directly using a combination of chemical and biological techniques or estimated using…”
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Evaluation of spot and passive sampling for monitoring, flux estimation and risk assessment of pesticides within the constraints of a typical regulatory monitoring scheme by Zhang, Zulin, Troldborg, Mads, Yates, Kyari, Osprey, Mark, Kerr, Christine, Hallett, Paul D., Baggaley, Nikki, Rhind, Stewart M., Dawson, Julian J.C., Hough, Rupert L.

“…In many agricultural catchments of Europe and North America, pesticides occur at generally low concentrations with significant temporal variation. This poses…”
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Connecting organic carbon in stream water and soils in a peatland catchment by Billett, Michael F., Deacon, Claire M., Palmer, Sheila M., Dawson, Julian J. C., Hope, Diane

“…We investigated the spatial and temporal connectivity between concentrations of organic carbon in stream water and the soil carbon pool in a small (1.3 km2)…”
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Is the Composition of Dissolved Organic Carbon Changing in Upland Acidic Streams? by Dawson, Julian J. C, Malcolm, Iain A, Middlemas, Stuart J, Tetzlaff, Doerthe, Soulsby, Chris

“…The quantity and composition of dissolved organic carbon (DOC) exported from upland soils to surface waters is a key link in the global carbon cycle and…”
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Variations in dissolved CO2 and CH4 in a first-order stream and catchment: an investigation of soil-stream linkages by Hope, Diane, Palmer, Sheila M., Billett, Michael F., Dawson, Julian J. C.

“…Spatial and seasonal variations in CO2 and CH4 concentrations in streamwater and adjacent soils were studied at three sites on Brocky Burn, a headwater stream…”
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Carbon Dioxide and Methane Evasion from a Temperate Peatland Stream by Hope, Diane, Palmer, Sheila M., Billett, Michael F., Julian J. C. Dawson

“…Peatland streams potentially represent important conduits for the exchange of gaseous carbon between the terrestrial ecosystem and the atmosphere. We…”
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Sources and Sinks of Aquatic Carbon in a Peatland Stream Continuum by Julian J. C. Dawson, Billett, Michael F., Hope, Diane, Palmer, Sheila M., Claire M. Deacon

“…Streams draining peatland systems contain a number of different C- species, all of which are linked either directly or indirectly to the cycling of C in the…”
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Sources of Organic and Inorganic Carbon in a Headwater Stream: Evidence from Carbon Isotope Studies by Palmer, Sheila M., Hope, Diane, Billett, Michael F., Julian J. C. Dawson, Bryant, Charlotte L.

“…A combination of stable isotope studies and 14C dating were used to identify the main sources and processes controlling streamwater DOC and TIC in a temperate…”
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Evaluating the use of in-situ turbidity measurements to quantify fluvial sediment and phosphorus concentrations and fluxes in agricultural streams by Stutter, Marc, Dawson, Julian J.C., Glendell, Miriam, Napier, Fiona, Potts, Jacqueline M., Sample, James, Vinten, Andrew, Watson, Helen

“…Accurate quantification of suspended sediments (SS) and particulate phosphorus (PP) concentrations and loads is complex due to episodic delivery associated…”
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An ecotoxicity assessment of contaminated forest soils from the Kola Peninsula by Paton, Graeme I., Viventsova (Ruth), Ekaterina, Kumpene, Jurate, Wilson, Michael J., Weitz, Hedda J., Dawson, Julian J.C.

“…Point source copper and nickel contamination emanating from smelters of the Kola Peninsula, NW Russia, has been observed since the mid-1960s. Previous studies…”
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Seasonal controls on DOC dynamics in nested upland catchments in NE Scotland by Dawson, Julian J. C., Tetzlaff, Doerthe, Speed, Mark, Hrachowitz, Markus, Soulsby, Chris

“…Spatial and temporal variability of hydrological responses affecting surface water dissolved organic carbon (DOC) concentrations are important for determining…”
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Identification of Environmental Factors Limiting Plant Uptake of Metaldehyde Seed Treatments under Field Conditions by Simms, Louise C, Dawson, Julian J. C, Paton, Graeme I, Wilson, Michael J

“…Slugs are serious pests of oilseed rape (canola) and wheat with most damage occurring just after sowing and seedling emergence. As an alternative to the use of…”
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Seasonality of epCO₂ at different scales along an integrated river continuum within the Dee basin, NE Scotland by Dawson, Julian J.C, Soulsby, Chris, Hrachowitz, Markus, Speed, Mark, Tetzlaff, Doerthe

“…Spatial and temporal variations of free CO₂ concentrations in surface waters are mainly controlled by dynamic processes encompassing terrestrial inputs and…”
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Microbiological characterisation of a diesel contaminated beach site by Paton, Graeme I., Iroegbu, Chinny O., Dawson, Julian J.C.

“…In the River Dee estuary, northeastern Scotland, where intertidal sediment was impacted by the catastrophic failure of diesel storage tanks, sediment samples…”
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Characterizing Pb Mobilization from Upland Soils to Streams Using 206Pb/207Pb Isotopic Ratios by Dawson, Julian J. C, Tetzlaff, Doerthe, Carey, Anne-Marie, Raab, Andrea, Soulsby, Chris, Killham, Kenneth, Meharg, Andrew A

“…Anthropogenically deposited lead (Pb) binds efficiently to soil organic matter, which can be mobilized through hydrologically mediated mechanisms, with…”
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Integrative management to mitigate diffuse pollution in multi-functional landscapes by Dawson, Julian JC, Smith, Pete

“…▶ Qualitative risk analysis of diffuse pollution from terrestrial management practices. ▶ Integration of physical phases to determine relationships between…”
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A pragmatic methodology for horizon scanning of water quality linked to future climate and land use scenarios by Dunn, Sarah M., Towers, Willie, Dawson, Julian J.C., Sample, James, McDonald, Jannette

“…•We developed an approach for horizon scanning water quality at a national scale.•The tool was co-constructed with practitioners from the regulatory body.•The…”
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First comprehensive peat depositional records for tin, lead and copper associated with the antiquity of Europe's largest cassiterite deposits by Meharg, Andrew A., Edwards, Kevin J., Schofield, J. Edward, Raab, Andrea, Feldmann, Joerg, Moran, Annette, Bryant, Charlotte L., Thornton, Barry, Dawson, Julian J.C.

“…Tin, as a constituent of bronze, was central to the technological development of early societies, but cassiterite (SnO2) deposits were scarce and located…”
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