The Lysimeter Concept: A Comprehensive Approach to Study the Environmental Behaviour of Pesticides in Agroecosystems

Führ, F.; Burauel, Peter; Mittelstaedt, W.; Pütz, Th.; Wanner, U.

doi:10.1021/bk-2003-0853.ch001

Cited by 3 publications

(1 citation statement)

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“…Laboratory-based, model-system studies have been conducted to provide information about fundamental mechanisms controlling the mobility of chemicals in soils. When analyzing chemical fate in a laboratory, complete manipulation of the "environment" and inputs may be achieved, but these rarely match realworld environmental conditions 5,6 . Thus, extrapolating lab results to field settings may lead to inaccurate predictions about chemical threats.…”

Section: Introductionmentioning

confidence: 99%

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Matteson

Mahoney

Gannon

et al. 2014

JoVE

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Potentially toxic chemicals are routinely applied to land to meet growing demands on waste management and food production, but the fate of these chemicals is often not well understood. Here we demonstrate an integrated field lysimetry and porewater sampling method for evaluating the mobility of chemicals applied to soils and established vegetation. Lysimeters, open columns made of metal or plastic, are driven into bareground or vegetated soils. Porewater samplers, which are commercially available and use vacuum to collect percolating soil water, are installed at predetermined depths within the lysimeters. At prearranged times following chemical application to experimental plots, porewater is collected, and lysimeters, containing soil and vegetation, are exhumed. By analyzing chemical concentrations in the lysimeter soil, vegetation, and porewater, downward leaching rates, soil retention capacities, and plant uptake for the chemical of interest may be quantified. Because field lysimetry and porewater sampling are conducted under natural environmental conditions and with minimal soil disturbance, derived results project real-case scenarios and provide valuable information for chemical management. As chemicals are increasingly applied to land worldwide, the described techniques may be utilized to determine whether applied chemicals pose adverse effects to human health or the environment. Video LinkThe video component of this article can be found at

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Section: Introductionmentioning

confidence: 99%