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Master Thesis

Analyse du fonctionnement hydrologique du bassin versant de Bourville et des transferts de pesticides associés

Abstract : In the cultivated catchment of the loess belt in the Northern Europe, soils are particularly sensitive to the runoff that can entail sensitive transport of pesticides to the body of water. To limit the contaminations, it is important to understand the catchment hydrological functioning. This report synthesize a large data base (agronomy, pluviometry, hydrology, water quality) from seven years of the 1045 ha Bourville catchment. To understand its hydrological functioning, a global analysis was realised, followed by an event analysis by descriptive statistical analysis. The hydrological variables of different measurement stations on the thalwegs of the catchment are considered to apprehend the spatial variability. This study highlighted the importance of the soil degradation conditions in the runoff genesis. It also emphasised the influence of the morphological features of the catchment on the runoff and pesticides transfers produced by the flooding classification. It highlights a strong seasonality of the runoff and exports as well as a flooding typology in function of its intensity and its origin. The result of this study will allow suggesting actions to set up on the catchment to reduce pesticide transfers.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01408640
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Submitted on : Monday, December 5, 2016 - 11:02:57 AM
Last modification on : Monday, July 6, 2020 - 3:38:21 PM
Long-term archiving on: : Tuesday, March 21, 2017 - 6:34:07 AM

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  • HAL Id : dumas-01408640, version 1

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Rachel l'Helgoualc'H. Analyse du fonctionnement hydrologique du bassin versant de Bourville et des transferts de pesticides associés. Science des sols. 2016. ⟨dumas-01408640⟩

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