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Interception in a mountainous declining spruce stand in the Strengbach catchment (Vosges, France)

Centre d'Etudes et de Recherches Eco-Géographiques (CEREG), ULP, 3 rue de l'Argonne, 67083 Strasbourg Cedex, France; Centre de Recherches Forestières (CRF), INRA Nancy-Amance, Champenoux, 54280 Seichamps, France; Centre de Géochimie de la Surface (CGS), CNRS, 1 rue Blessig, 67084 Strasbourg Cedex, France
Journal of Hydrology 04/1993; DOI: 10.1016/0022-1694(93)90175-9

ABSTRACT In a over-mature (declining) 90-year-old Norway spruce stand (Picea abies) in the Vosges mountain area, gross precipitation, throughfall, stemflow and meteorological variables have been measured for three periods in the summers of 1988, 1989 and 1990; transpiration was measured from June to August 1989. Throughfall, interception and stemflow represent, respectively, 65.3%, 34.2% and 0.5% of the incident rainfall. A semi-logarithmic relationship between interception and gross precipitation is given. Transpiration of the stand determined by sap-flow measurements represents only 27% of the potential evapotranspiration. Evaporation of water intercepted by the vegetation is the major component of the evapotranspiration.

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