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RECHERCHES SUR L'ÉCOSYSTÈME FORÊT SÉRIE B: LA CHÊNAIE MÉLANGÉE CALCICOLE DE VIRELLES-BLAIMONT: Contribution n° 29: APPORTS D'ÉLÉMENTS MINÉRAUX PAR LES EAUX DE PRÉCIPITATIONS, D'ÉGOUTTEMENT SOUS COUVERT FORESTIER ET D'ÉCOULEMENT LE LONG DES TRONCS (1965, 1966 1967)

S. DENAEYER-DE SMET and P. Duvigneaud
Bulletin de la Société Royale de Botanique de Belgique / Bulletin van de Koninklijke Belgische Botanische Vereniging
T. 102, Fasc. 2 (1969), pp. 355-372
Stable URL: http://www.jstor.org/stable/20792695
Page Count: 18
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
RECHERCHES SUR L'ÉCOSYSTÈME FORÊT SÉRIE B: LA CHÊNAIE MÉLANGÉE CALCICOLE DE VIRELLES-BLAIMONT: Contribution n° 29: APPORTS D'ÉLÉMENTS MINÉRAUX PAR LES EAUX DE PRÉCIPITATIONS, D'ÉGOUTTEMENT SOUS COUVERT FORESTIER ET D'ÉCOULEMENT LE LONG DES TRONCS (1965, 1966 1967)
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Abstract

Content (Tabl. 1, 2, 3) and total quantities of K, Ca, Na and N.NOε brought by incident rainfall and by throughfall and stemflow (tabl. 5) in a mixed oakwood forest (Virelles, Belgium) were studied during 3 years (1965-1966-1967). The stemflow contribution is very low (8-10% of the total quantities). Total quantities of K and Ca are approximatively the same for 1965 and 1966 (respectively 27 and 32 kg/ha) and a little higher in 1967 (higher precipitations); annual variations of Na (18-27 kg/ha) and $\text{N}.\text{NO}_{3}^{-}$ (10-13 kg/ha) total quantities are more important because they depend mainly of incident rainfall content. Total quantities of K, Ca and Na vary with season (fig. 1 and 3); K leaching of yellowing leaves seems important.

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