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Forest Ecosystems
Fig. 3 | Forest Ecosystems

Fig. 3

From: Importance of overstorey attributes for understorey litter production and nutrient cycling in European forests

Fig. 3

Nutrient concentrations and stocks in overstorey foliar litterfall and understorey non-lignified biomass: (a) nitrogen concentration, (b) nitrogen stocks, (c) phosphorous concentration and (d) phosphorous stocks. Bars represent the mean ± standard error of the mean. Phosphorous concentration and stock were not determined for overstorey foliar litterfall. Letters above the bars denote significant differences across forest types, for overstorey (uppercase) and understorey (lowercase) variables

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