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Table 1 Mixing effects on stand productivity of various tree species mixtures in Central European forests derived from long-term experiments (Pretzsch and Forrester 2017). The relative overyielding (%) refers to the productivity of the mixed species stands in relation to the weighted mean of the neighbouring monospecific stands. The correction factors may be used to conservatively adjust the stand productivity of monospecific stands to the expected stand productivity of the respective species assemblages (Pretzsch 2016)

From: Toward managing mixed-species stands: from parametrization to prescription

Species combination N. sp./E. be S. pi/E. be s. oak/E. be E. be/D-fir S. pi/N. sp E. la/N. sp N. sp./s. fir Mean
Overyielding (± SE) in 21 (±3) 30 (±9) 20 (±3) 11 (±8) 21 (±11) 25 (±6) 13 (±6)  
Corr. factor 1.10 1.20 1.10 1.10 1.20 1.20 1.10 1.10
  1. N. sp. Norway spruce (Picea abies (L.) Karst.), E. be. European beech (Fagus sylvatica L.), S. pi. Scots pine (Pinus sylvestris L.), s. oak sessile oak (Quercus petraea (Matt.) Liebl.), D-fir Douglas-fir (Pseudotsuga menziesii Mirb.), E. la. European larch (Larix decidua Mill.), s. fir silver fir (Abies alba Mill.)