Figure 5
From: Various response of Pinus tabulaeformis Carr. regeneration in artifical gaps
The response of the annual height growth of REAG to gap size. (a) REAG of 3 ≤ age ≤ 5. (b) REAG of 6 ≤ age ≤ 7. The clustered column diagrams represent the height growth in the same growing season for REAG between different gap size classes. The bars represent ± SE. The uppercase (p < 0.01) or lowercase (p < 0.05) letters above the standard error bars indicate significant differences (Duncan’s test) among gap size classes for the height growth in the same growing season. Abbreviations are the same as those provided in Fig. 1.
