Master
French

L’agriculture suisse face aux risques de sécheresse : analyse de l’exposition des parcelles agricoles du canton de Fribourg

ContributorsMoix, Estelle
DirectorsDao, Quoc-Hy
Number of pages104
Master program titleMaster universitaire en sciences de l'environnement (MUSE)
Handover date2024-08-30
Defense date2024-09-13
Abstract

Faced with the challenges of climate change, Swiss agriculture, particularly in the canton of Fribourg, is experiencing an increasing frequency of droughts. This study analyzes the agricultural drought risk in this region from 1985 to 2023, using remote sensing indices (vegetation: NDVI, water: NDWI, drought: NDDI) at the parcel level. The main results from the seasonal analysis indicate a slight improvement in conditions for a minority of parcels, with increases in NDVI and NDWI, while the majority show no significant trends. Regarding the NDDI, fluctuations are observed, but most parcels exhibit no clear trend. However, a month-by-month analysis of NDDI from April to October reveals a marked drying of agricultural areas, particularly in July and August, reflecting summer droughts. These findings highlight the growing risk of summer droughts, necessitating increased attention to water resource management and agricultural planning. Trends based on altitude, parcel size, location, or crop type show little differentiation. To enhance the reliability of the results, it would be advisable to incorporate meteorological and soil data, as well as to explore additional indices and improve spatial and temporal resolution. In conclusion, this research contributes to a better understanding of drought risk in Switzerland, providing valuable information for farmers and decision-makers in managing water infrastructure.

Keywords
  • Sécheresse
  • Agriculture
  • Suisse
  • Risques
  • Télédétection
  • NDVI
  • NDWI
  • NDDI
NoteProjet ANR/FNS TRACES
Citation (ISO format)
MOIX, Estelle. L’agriculture suisse face aux risques de sécheresse : analyse de l’exposition des parcelles agricoles du canton de Fribourg. Master, 2024.
Main files (1)
Master thesis
accessLevelRestricted
Identifiers
  • PID : unige:189074
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