Abstract
Six beech forest sites, representing the variability of soil-pH of Galium odoratum and Stellaria nemorum in S. Sweden, were sampled during 1 year using percolation lysimeters installed immediately under the root horizon of the studied species. Chemical analyses were made of DOC, Al, Ca, Cl, Fe, K, Mg, Mn, Na, NH 4 , NO 3 , PO 4 , SO 4 and Zn. Within each site the sample plots were selected for a well-developed cover of mainly Galium odoratum, mainly Stellaria nemorum or a mixture of both species. This design allows inter- and intra-species comparisons within the limits of their occurrence. The percolation water had lowest concentrations of most constituents in the summer, probably due to a high uptake by the vegetation. This was most evident for productive sites, where the substantial decrease might have approached limiting levels (...)
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