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IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2014 9 Grape growing soils, topographic diversity 9 Spatio-temporal analysis of grapevine water behaviour in hillslope vineyards. the example of corton hill, Burgundy

Spatio-temporal analysis of grapevine water behaviour in hillslope vineyards. the example of corton hill, Burgundy

Abstract

Hillslope vineyards show various and complex water dynamics between soil and plants, and in order to gain further insight into this phenomenon, 8 grapevine plots were monitored during three vintages, from 2010 to 2013, on Corton Hill, Burgundy, France. Plots were distributed along a topolithosequence from 330 to 270 meters asl. Grapevine water status was monitored weekly by surveying water potential, and, at the end of the season, using δ13C analysis of grape juice. Soil profile of each plot was described and analysed (soil texture, gravel content, organic carbon, total nitrogen, pH, CEC). Soil volumetric humidity was measured weekly, using TDR probes. A pedotransfer function was developed to transform 2-dimensions Electrical Resistivity Imaging (ERI) into soil volume wetness and therefore to spatialise and observe variation in the Fraction of Transpirable Soil Water (FTSW). During the three years of monitoring, grapevines experienced great variation in water status, which ranged from low to considerable water deficit (as expressed by pre-dawn leaf water potential and δ13C analysis of grape juice). With ERI imaging, it was possible to observe differences in water absorption pattern by roots, in different soils, and at different depth. In addition, significant differences were observed in grapevine water status in relation to variations in the physical characteristics of the terroir along the hillslope (i.e. the geo-pedological context, the elevation etc.). Grapevine water behaviour and plant-soil water relationships on the hillslope of Corton Hill have been extensively characterised in this study by ultimate technologies, allowing to present this terroir as a very interesting example for future generalisation and modelling of the hillslope vineyard water dynamics.

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Publication date: July 31, 2020

Issue: Terroir 2014

Type: Article

Authors

Luca BRILLANTE (1), Benjamin BOIS (1,2), Olivier MATHIEU (1), Jean LEVEQUE (1)

(1) Biogéosciences UMR 6282 CNRS / Université de Bourgogne, 6, Bd Gabriel, 21000 DIJON, France 
(2) IUVV, Université de Bourgogne, 1, rue Claude Ladrey, 21000 DIJON, France 

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Keywords

Grapevine water stress, Electrical Resistivity Imaging, leaf water potentials, plant-soil water relations, FTSW, topographic effect, pedotransfer function

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IVES Conference Series | Terroir 2014

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