Riparian buffer zones as pesticide filters of no-till crops

Environmental Science and Pollution Research International
Terencio R AguiarM T Ferreira

Abstract

Several studies have pointed to the potential benefits of riparian vegetation as buffer zones for agricultural and industrial pollutants harmful to aquatic ecosystems. However, other studies have called into question its use as an ecological filter, questioning the widths and conditions for which they are effective as a filter. In this work, we have investigated the buffering capacity of the riparian one to retain pesticides in the water-saturated zone, on 27 sites composed by riparian buffer zones with different vegetation structure (woody, shrubs, or grass vegetation) and width (12, 36, and 60 m). Five pesticides were analyzed. The effectiveness of the filtering was largely influenced by the width and vegetation type of the buffer zone. In general, decreasing pesticide removal followed in this order wood > shrubs > grass. The 60 m woody buffer zone was the most effective in the removal of all the pesticides. Only atrazine was detected in this case (0.3 μg L(-1)). Furthermore, a linear correlation (R (2) > 0.97) was observed in their removal for all compounds and buffer zones studied. Thus, preserving the woody vegetation in the riparian zone is important for watershed management and groundwater quality in the no-tillage syste...Continue Reading

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Citations

Jan 14, 2018·Environmental Monitoring and Assessment·Daniel EliasPierre-Andre Jacinthe
Mar 25, 2017·Environmental Science and Pollution Research International·Jeanne DollingerMarc Voltz
Aug 2, 2020·Carbon Balance and Management·Virginia MatzekKenneth W Tate
Nov 13, 2019·Environmental Monitoring and Assessment·José Osmar Andrade Guimarães NetoTerencio Rebello Aguiar Junior
Oct 13, 2018·The Science of the Total Environment·Humberto C IbañezBonald C Figueiredo
Dec 23, 2017·The Science of the Total Environment·Laura L de SosaDavey L Jones
Feb 24, 2021·Journal of Environmental Management·Brumberg HilaryWhitworth Andrew
Apr 16, 2021·Journal of Environmental Management·Reza AbdiTerri S Hogue

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