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Introducing ground cover management in pesticide emission modeling
- Source :
- Integrated Environmental Assessment and Management, Gentil-Sergent, C, Basset-Mens, C, Renaud-Gentié, C, Mottes, C, Melero, C, Launay, A & Fantke, P 2022, ' Introducing ground cover management in pesticide emission modeling ', Integrated Environmental Assessment and Management, vol. 18, no. 1, pp. 274-288 . https://doi.org/10.1002/ieam.4482
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Ground cover management (GCM) is an important agricultural practice used to reduce weed growth, erosion and runoff, and improve soil fertility. In the present study, an approach to account for GCM is proposed in the modeling of pesticide emissions to evaluate the environmental sustainability of agricultural practices. As a starting point, we include a cover crop compartment in the mass balance of calculating initial (within minutes after application) and secondary (including additional processes) pesticide emission fractions. The following parameters were considered: (i) cover crop occupation between the rows of main field crops, (ii) cover crop canopy density, and (iii) cover crop family. Two modalities of cover crop occupation and cover crop canopy density were tested for two crop growth stages, using scenarios without cover crops as control. From that, emission fractions and related ecotoxicity impacts were estimated for pesticides applied to tomato production in Martinique (French West Indies) and to grapevine cultivation in the Loire Valley (France). Our results demonstrate that, on average, the presence of a cover crop reduced the pesticide emission fraction reaching field soil by a factor of 3 compared with bare soil, independently of field crop and its growth stage, and cover crop occupation and density. When considering cover exported from the field, ecotoxicity impacts were reduced by approximately 65% and 90%, compared with bare soil for grapevine and tomato, respectively, regardless of the emission distribution used. Because additional processes may influence emission distributions under GCM, such as runoff, leaching, or preferential flow, further research is required to incorporate these processes consistently in our proposed GCM approach. Considering GCM in pesticide emission modeling highlights the potential of soil cover to reduce pesticide emissions to field soil and related freshwater ecotoxicity. Furthermore, the consideration of GCM as common farming practice allows the modeling of pesticide emissions in intercropping systems. Integr Environ Assess Manag 2021;00:1–15. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).
- Subjects :
- Canopy
F08 - Systèmes et modes de culture
Geography, Planning and Development
H02 - Pesticides
010501 environmental sciences
01 natural sciences
Soil
Soil Pollutants
Leaching (agriculture)
Cover crop
General Environmental Science
2. Zero hunger
biology
U10 - Informatique, mathématiques et statistiques
Agriculture
Intercropping
04 agricultural and veterinary sciences
General Medicine
Émission de polluant
P02 - Pollution
Martinique
Crops, Agricultural
Analyse du cycle de vie
12. Responsible consumption
pratique agricole
Plante de couverture
Couverture végétale
Pesticides
SDG 2 - Zero Hunger
0105 earth and related environmental sciences
Hydrology
Écotoxicité
business.industry
15. Life on land
biology.organism_classification
Pesticide
Modélisation
13. Climate action
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Soil fertility
business
Surface runoff
Subjects
Details
- ISSN :
- 15513793 and 15513777
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Integrated Environmental Assessment and Management
- Accession number :
- edsair.doi.dedup.....89ededb5de0b196af44751bfcf7fb756