植株大小、枝龄和环境共同驱动红松枝性状的变异
于青含, 金光泽, 刘志理*(
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Plant size, branch age and environment factors co-drive variations of branch traits of Pinus koraiensis
YU Qing-Han, JIN Guang-Ze, LIU Zhi-Li*()
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图4. 红松枝性状随枝龄的变化斜率随不同植株大小(DBH或树高)的变异趋势。RPA, 髓面积占比; RPHA, 韧皮部面积占比; RRC, 树脂道总面积占比; RXA, 木质部面积占比; WD, 木质密度。*, p > 0.05; **, p > 0.01。
Fig. 4. Variation trend of the slope of branch traits against branch age with different plant sizes (DBH or tree height) for Pinus koraiensis. DBH, diameter at breast height; RPA, pith area-to-total cross-sectional area ratio; RPHA, phloem area-to-total cross-sectional area ratio; RRC, total resin canal area-to-total cross-sectional area ratio; RXA, xylem area-to-total cross-sectional area ratio; WD, wood density. *, p > 0.05; **, p > 0.01.
