Copper contamination in agricultural soils: A review of the effects of climate, soil properties, and prolonged copper pesticide application in vineyards and orchards
2024
Neaman, Alexander | Schoffer, Jorge-Tomás | Navarro-Villarroel, Claudia | Pelosi, Céline | Peñaloza, Patricia | Dovletyarova, Elvira, A | Schneider, Jerusa | Universidad de Tarapaca | Center of applied ecology & sustainability (CAPES) ; Facultad de ciencias biologicas [Santiago] ; Pontificia Universidad Católica de Chile (UC)-Pontificia Universidad Católica de Chile (UC) | Universidad de Valparaiso = Valparaiso University | Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH) ; Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Université russe de l'amitié des peuples = People's Friendship University of Russia = Rossijskij universitet družby narodov [Moscou] (RUDN) | Universidade Estadual de Campinas = University of Campinas (UNICAMP) | Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)CONICYT FONDECYT 3220026 ANID PIA/BASAL FB0002ECOS Sud, FranceC21B03ANID, ChileECOS210001
International audience
Show more [+] Less [-]English. Copper contamination stemming from copper-based pesticides poses a grave concern in vineyards and orchards, causing toxicity to soil organisms. Here, we present a comprehensive review of global data encompassing copper levels in these soils, coupled with variables such as the age of agricultural establishments, climate, soil organic matter content, soil pH, and farming practices (organic vs . conventional). The results suggest that there are three pivotal determinants driving copper content in vineyard and orchard soils: climate, the age of agricultural establishments, and soil organic matter content. It was impossible to estimate soil pH's effect on soil copper content because of its dependence on precipitation. Copper content in vineyard and orchard soils worldwide follows a direct correlation with precipitation while inversely correlating with aridity (i.e. potential evapotranspiration divided by precipitation). Furthermore, a clear linkage emerges between farm age and increased copper content in soils globally. Intriguingly, the increased soil organic matter content has shown inverse impacts on soil copper levels. These effects of soil properties on soil copper contents were discussed in terms of copper losses from soil via surface runoff. However, no discernible disparities in soil copper content between organic and conventional farming systems were found. This worldwide survey not only underscores the established influence of climate on European vineyards but also sheds novel light on the historical legacy of copper contamination in these landscapes.
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