Pesticide leaching by agricultural drainage in sloping, mid-textured soil conditions – the role of runoff components

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027049%3A_____%2F18%3AN0000006" target="_blank" >RIV/00027049:_____/18:N0000006 - isvavai.cz</a>

Výsledek na webu

<a href="http://wst.iwaponline.com/" target="_blank" >http://wst.iwaponline.com/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wst.2018.068" target="_blank" >10.2166/wst.2018.068</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pesticide leaching by agricultural drainage in sloping, mid-textured soil conditions – the role of runoff components

Popis výsledku v původním jazyce

Dynamics of pesticides and their metabolites in drainage waters during baseflow periods and rainfall-runoff events (RREs) were studied from 2014 to 2016 at three small, tile-drained agricultural catchments in Bohemian-Moravian Highlands, Czech Republic. Drainage systems in this region are typically built in slopes with considerable proportion of drainage runoff originating outside the drained area itself. Continuous monitoring was performed by automated samplers, and the event hydrograph was separated using 18O and 2H isotopes and using drainage water temperature. Results showed that drainage systems represent a significant source for pesticides leaching from agricultural land. Leaching of pesticide metabolites was mainly associated with baseflow and shallow interflow. Water from causal precipitation diluted their concentrations. The prerequisite for the leaching of parental compounds was a rainfall-runoff event occurring shortly after spraying, and the presence of event water in the runoff. When such situations happened consequently, pesticides concentrations in drainage water were high and the pesticide load reached several grams in a few hours. Presented results introduce new insights in the processes of pesticides movement in small, tile-drained catchments and emphasizes the need to incorporate drainage hydrology and flow-triggered sampling into monitoring programmes in larger catchments as well as in environment-conservation policy.

Název v anglickém jazyce

Pesticide leaching by agricultural drainage in sloping, mid-textured soil conditions – the role of runoff components

Popis výsledku anglicky

Dynamics of pesticides and their metabolites in drainage waters during baseflow periods and rainfall-runoff events (RREs) were studied from 2014 to 2016 at three small, tile-drained agricultural catchments in Bohemian-Moravian Highlands, Czech Republic. Drainage systems in this region are typically built in slopes with considerable proportion of drainage runoff originating outside the drained area itself. Continuous monitoring was performed by automated samplers, and the event hydrograph was separated using 18O and 2H isotopes and using drainage water temperature. Results showed that drainage systems represent a significant source for pesticides leaching from agricultural land. Leaching of pesticide metabolites was mainly associated with baseflow and shallow interflow. Water from causal precipitation diluted their concentrations. The prerequisite for the leaching of parental compounds was a rainfall-runoff event occurring shortly after spraying, and the presence of event water in the runoff. When such situations happened consequently, pesticides concentrations in drainage water were high and the pesticide load reached several grams in a few hours. Presented results introduce new insights in the processes of pesticides movement in small, tile-drained catchments and emphasizes the need to incorporate drainage hydrology and flow-triggered sampling into monitoring programmes in larger catchments as well as in environment-conservation policy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10501 - Hydrology

Projekt

<a href="/cs/project/TA04021527" target="_blank" >TA04021527: Studium příčin a dynamiky zátěže vod drobných vodních toků přípravky na ochranu rostlin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Water Science & Technology

ISSN

0273-1223

e-ISSN

1996-9732

Svazek periodika

77

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1879 - 1890

Kód UT WoS článku

000430486400012

EID výsledku v databázi Scopus

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