Importance de la variabilité des traits fonctionnels dans la compréhension de la structuration des communautés végétales de bandes enherbées

Abstract : The presence of weeds in crop fields is a cause of reducing yield and that due to the development of competition for water, minerals and light between crop and these weeds. The origin of these weeds is varied and may, in particular, come from grass and flower strips located on the edge of agricultural land. These borders promote an increase in species richness and abundance of plant species. They therefore have a positive function of environmental regulation and source of biodiversity. However, the presence of sown field margins could be considered negative in the case of weeds' source that may spread in the crops vitiating thereafter production. The objective is to determine the diversity of weeds and the variability of their main functional traits compared to those of the constituent species of grass plant strips in field margin. The underlying assumption is that a sown field margin diversified limits the appearance of crop's weeds within this edge.
Document type :
Master thesis
File URL :
http://docnum.univ-lorraine.fr/prive/BUS_M_2013_MAYER_LUCY.pdf
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https://hal.univ-lorraine.fr/hal-01779066
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Submitted on : Thursday, April 26, 2018 - 12:07:25 PM
Last modification on : Friday, April 27, 2018 - 1:13:56 AM

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Lucy Mayer. Importance de la variabilité des traits fonctionnels dans la compréhension de la structuration des communautés végétales de bandes enherbées. Sciences de l'environnement. 2013. ⟨hal-01779066⟩

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