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Browsing by Author "Brown, Colin D."

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Calibration of pesticide leaching models

Dubus, Igor G. (2002-09)

Complex deterministic models are being used within the context of pesticide registration to assess the potential for crop protection products to impact on the environment. Although calibration is in many ways at the heart ...
Evaluation of probabilistic modelling approaches against data on leaching of isoproturon through undisturbed lysimeters

Beulke, Sabine; Brown, Colin D.; Dubus, Igor G.; Fryer, Christopher J.; Walker, Allan (Elsevier, 2004-11-15)

This study evaluated probabilistic modelling approaches against data on leaching of isoproturon through two contrasting soil types. Leaching through undisturbed lysimeters from a sandy loam (Wick series) and a moderately ...
Influence of kinetic sorption and diffusion on pesticide movement through aggregated soils

Beulke, Sabine; Brown, Colin D.; Fryer, Christopher J.; van Beinum, Wendy (Elsevier, 2004-11)

Laboratory studies were carried out to investigate solute leaching at different times from application in relation to temperature and initial soil moisture. Aggregates of a heavy clay soil were treated with a non-interactive ...
Morphological and physico-chemical properties of British aquatic habitats potentially exposed to pesticides.

Brown, Colin D.; Turner, Nigel; Hollis, John; Bellamy, Patricia H.; Biggs, Jeremy; Williams, Penny; Arnold, Dave; Pepper, Tim; Maund, Steve (Elsevier, 2006-04)

Approaches to describe the exposure of non-target aquatic organisms to agricultural pesticides can be limited by insufficient knowledge of the environmental conditions where the compounds are used. This study analysed ...
Simulating pesticides in ditches to assess ecological risk (SPIDER): I. Model description.

Renaud, Fabrice G.; Bellamy, Patricia H.; Brown, Colin D. (Elsevier Science B.V., Amsterdam., 2008-05-01)

Risk assessment for pesticides in the aquatic environment relies on a comparison between estimated exposure concentrations in surface water bodies and endpoints from a series of effect tests. Many field- and catchment-scale ...
Small Water Bodies in Great Britain and Ireland: Ecosystem function, human-generated degradation, and options for restorative action

Riley, William D.; Potter, Edward C. E.; Biggs, Jeremy; Collins, Adrian L.; Jarvie, Helen P.; Jones, J. Iwan; Kelly-Quinn, Mary; Ormerod, Steve J.; Sear, David A.; Wilby, Robert L.; Broadmeadow, Samantha; Brown, Colin D.; Chanin, Paul; Copp, Gordon H.; Cowx, Ian G.; Grogan, Adam; Hornby, Duncan D.; Huggett, Duncan; Kelly, Martyn G.; Naura, Marc; Newman, Jonathan R.; Siriwardena, Gavin M. (Elsevier, 2018-07-26)

Small, 1st and 2nd-order, headwater streams and ponds play essential roles in providing natural flood control, trapping sediments and contaminants, retaining nutrients, and maintaining biological diversity, which extend ...
Using a linked soil model emulator and unsaturated zone leaching model to account for preferential flow when assessing the spatially distributed risk of pesticide leaching to groundwater in England and Wales

Holman, Ian P.; Dubus, Igor G.; Hollis, J. M.; Brown, Colin D. (Elsevier Science B.V., Amsterdam., 2004-01-05)

Although macropore flow is recognized as an important process for the transport of pesticides through a wide range of soils, none of the existing spatially distributed methods for assessing the risk of pesticide leaching ...

Browsing by Author "Brown, Colin D."

Browsing by Author "Brown, Colin D."

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