Assessing impacts of copper on soil enzyme activities in regard to their natural spatiotemporal variation under long-term different land uses
| Autor: | Christian Mougin, Marthe Vinceslas-Akpa, Isabelle Trinsoutrot-Gattin, Jérémie D. Lebrun, Agathe Brault, Caroline Bailleul, Karine Laval |
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| Přispěvatelé: | Laboratoire d’écologie microbienne (BioSol), École supérieure d'ingénieurs et de techniciens pour l'agriculture (ESITPA), Étude et compréhension de la biodiversité (ECODIV), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), UR 0251 Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés, Institut National de la Recherche Agronomique (INRA)-Santé des plantes et environnement (S.P.E.)-Environnement et Agronomie (E.A.)-Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés (PESSAC), Physico-chimie et Ecotoxicologie des Sols d'agrosystèmes contaminés, Institut National de la Recherche Agronomique (INRA), Unité de recherche en agro-écologie des territoires (AGRI'TERR ), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Soil Science
010501 environmental sciences 01 natural sciences Microbiology complex mixtures Grassland Terrestrial Model EcosystemsSoil qualityEnzymeBioindicators Ecosystem ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences 2. Zero hunger geography geography.geographical_feature_category Land use 04 agricultural and veterinary sciences 15. Life on land Contamination Soil quality Soil contamination Agronomy 13. Climate action Intensive crop Soil water [SDE]Environmental Sciences 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science [SDE.BE]Environmental Sciences/Biodiversity and Ecology Bioindicator |
| Zdroj: | Soil Biology and Biochemistry Soil Biology and Biochemistry, Elsevier, 2012 Soil Biology and Biochemistry, Elsevier, 2012, 49, pp.150-156. ⟨10.1016/j.soilbio.2012.02.027⟩ |
| ISSN: | 0038-0717 |
| DOI: | 10.1016/j.soilbio.2012.02.027⟩ |
| Popis: | International audience; Enzymes are known to be sensitive indicators of soil quality. Nevertheless, the natural variability of their activities needs to be considered for a relevant interpretation of activity levels, especially in contaminated soils. We first monitored the variability of enzymatic activities (acid and alkaline phosphatases, β-glucosidase, N-acetyl-β-glucosaminidase, urease and dehydrogenase) in two agricultural sites in north-western France during a seasonal April–October cycle. For both sites, two types of long-term different agricultural managements, grassland and intensive cropping were considered. Our results revealed great variability of enzymatic activities in space and over time, yet more pronounced for grassland than for cropped soils. Then, we assessed the impact of copper on enzymes activity on Terrestrial Model Ecosystems (TMEs) filled with undisturbed soil, and incubated for 70 days in open-field conditions. Copper was added at two concentration levels corresponding to a regulated annual agronomic input (2 mg kg−1) or to a high soil contamination (200 mg kg−1). In comparison to effects of natural spatiotemporal variability of soil conditions, copper addition did not show significant impacts on enzymatic activities. Finally, our results confirmed that for assessing effective impacts of contaminants in soils under real field conditions, natural spatiotemporal soil variability must be considered. |
| Databáze: | OpenAIRE |
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