Journal Article

Long-term relationships among pesticide applications, mobility, and soil erosion in a vineyard watershed

Institute of Geological Sciences [Bern] ; Universität Bern = University of Bern = Université de Berne (UNIBE), Pignol, Cécile, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE) ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Naffrechoux, E, Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) ; Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Dorioz, Jean-Marcel, Ployon, Estelle, Develle, Anne-Lise, Sabatier, Pierre, Laboratoire de Chimie Moléculaire et Environnement (LCME) ; Université Savoie Mont Blanc (USMB [Unive

2014

Overview

Agricultural pesticide use has increased worldwide during the last several decades, but the long-term fate, storage, and transfer dynamics of pesticides in a changing environment are poorly understood. Many pesticides have been progressively banned, but in numerous cases, these molecules are stable and may persist in soils, sediments, and ice. Many studies have addressed the question of their possible remobilization as a result of global change. In this article, we present a retro-observation approach based on lake sediment records to monitor micropollutants and to evaluate the long-term succession and diffuse transfer of herbicides, fungicides, and insecticide treatments in a vineyard catchment in France. The sediment allows for a reliable reconstruction of past pesticide use through time, validated by the historical introduction, use, and banning of these organic and inorganic pesticides in local vineyards. Our results also revealed how changes in these practices affect storage conditions and, consequently, the pesticides' transfer dynamics. For example, the use of postemergence herbicides (glyphosate), which induce an increase in soil erosion, led to a release of a banned remnant pesticide (dichlorodiphenyltrichloroethane, DDT), which had been previously stored in vineyard soil, back into the environment. Management strategies of ecotoxicological risk would be well served by recognition of the diversity of compounds stored in various environmental sinks, such as agriculture soil, and their capability to become sources when environmental conditions change.

• Publisher: National Academy of Sciences,CCSD,National Acad Sciences
• Subject: Agrochemicals / Biological Sciences / Climate change / DDT / DDT (pesticide) / Ecosystem / ecotoxicology / Environmental changes / Environmental conditions / Environmental Sciences / France / Fungicides / glyphosate / Herbicides / Inorganic pesticides / Insecticides / Lake sediments / lakes / Organic pesticides / Pesticide application / Pesticides / Pesticides - chemistry / Physical Sciences / postemergent weed control / risk assessment / Sedimentary soils / Sediments / Soil - chemistry / Soil erosion / Soil pollution / vineyard soils / Vineyards / Waste Water - chemistry / Watersheds / Wineries & vineyards
• ISBN: 0003440881000