Impact of olive trees on the microclimatic and edaphic environment of the understorey durum wheat in an alley orchard of the Mediterranean area

Panozzo, A.; Huang, H. Y.; Bernazeau, B.; Meunier, F.; Turc, O.; /Duponnois, Robin; Prin, Y.; Vamerali, T.; Desclaux, D.

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dc.creator	Panozzo, A.
dc.creator	Huang, H. Y.
dc.creator	Bernazeau, B.
dc.creator	Meunier, F.
dc.creator	Turc, O.
dc.creator	/Duponnois, Robin
dc.creator	Prin, Y.
dc.creator	Vamerali, T.
dc.creator	Desclaux, D.
dc.date	2022
dc.date.accessioned	2022-04-27T17:37:53Z
dc.date.available	2022-04-27T17:37:53Z
dc.identifier	https://www.documentation.ird.fr/hor/fdi:010084380
dc.identifier	oai:ird.fr:fdi:010084380
dc.identifier	Panozzo A., Huang H. Y., Bernazeau B., Meunier F., Turc O., Duponnois Robin, Prin Y., Vamerali T., Desclaux D.. Impact of olive trees on the microclimatic and edaphic environment of the understorey durum wheat in an alley orchard of the Mediterranean area. 2022, 12 (2), p. 527 [20 p.]
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169144
dc.description	In the current context of climate change, the impact of trees in agroforestry systems is expected to mitigate water and heat stresses, particularly in semi-arid environments. Within this framework, in a two-year trial conducted at INRAE in Southern France, the dynamics of microclimatic parameters and the edaphic environment of durum wheat were investigated under a yearly-pruned (AF) and a never-pruned (AF+) 6-m apart alley olive orchard, in comparison with controls under full sun. Here it was recorded a reduction of photosynthetic active radiation (PAR) by 30% and 51% in AF and AF+, respectively, during the wheat cycle, together with a marked reduction of wind speed compared to controls (-85% in AF and -99% in AF+). A significant buffer effect was also highlighted for air temperature, averagely +1.7 degrees C during the night and -3.2 degrees C during the daytime under the moderate shading of AF. The positive effect of trees on soil water conservation increased with the intensity of shading, particularly during the critical wheat stage of grain filling, with benefits on wheat root mycorrhization, and NH4+ and NO3- abundance in the arable layer. Despite some of the environmental modifications being favorable for the understorey wheat, these were not translated into yield improvements, suggesting that the severe shading associated with the small inter-row and evergreen trees has a prevailing effect, that requires to be managed through appropriate tree pruning.
dc.language	EN
dc.subject	intercropping
dc.subject	agroforestry
dc.subject	PAR
dc.subject	air temperature
dc.subject	water conservation
dc.subject	arbuscular mycorrhizal fungi
dc.title	Impact of olive trees on the microclimatic and edaphic environment of the understorey durum wheat in an alley orchard of the Mediterranean area
dc.type	text
dc.coverage	ZONE MEDITERRANEENNE