Fig. 1From: Secondary metabolites in leaves of hybrid aspen are affected by the competitive status and early thinning in dense coppicesa Design of the experimental area, where treatment replications are indicated with capital letters (A, F, H—unmanaged control; B, D, I—corridor thinning; C, E, G—cross-corridor thinning). Numbers 1, 2 and 3 indicate the circle plots in each replication. b Graphical illustration of the applied thinning treatmentsBack to article page