摘要
灰木莲（Manglietia glauca Blume）属木兰科（Magnoliaceae）常绿阔叶大乔木,树干通直,高大挺拔,材质优良,木材为散孔材,干材密度为0.611 g.cm-3,纹理细致,易加工,切面光滑美丽。
The survey was conducted on the growth of lO-year-old Manglietia glauc and their soilcondition in differ-ent slope position from three sites： the original place Bao Yen of Lao Cai, Vietnam and the introduction places Baiyun and Shaoping in Pingxiang, Guangxi, China. It was found that the growth of M. glauc on different sitesshowed down slope 〉 middle slope 〉 upper slope. Comparing the down/upper slope with upper slope in different sites, the DBH, tree height and volume growth rose by 30. 35%, 49.00%; 34. 78%, 56. 03%; 122.97%,236. 15% in Baiyun, 30. 07%, 53.44% ; 39. 00%, 54. 54% ; 125.09%, 245.76% in Shaoping, and 19. 75%, 35.08%; 11.08%, 27.49%; 56. 58%, 119. 21% in Bho Y^n, respectively. Baiyun and Shaoping located insouth subtropical zone, had higher effect on the growth of M. glauc than that in its original place B/to Yen located in north tropical zone. The effect of soil condition on M. glauc stands showed the same regularity. This implied that M.glauc is a soil sensitive species. Result of variance analysis showed that slope position on the growth of M. glauc reached a highly significant difference （P 〈 0. 01 ）. Multiple comparisons showed that the DBH, tree height and vol-ume growth had highly significant difference on different slopes. The correlation analysis result confirmed that the DBH, tree height and volume growth had a highly significant linear correlation with slope position. Straight line fig-ures in three locations showed, the growth linear gradient of M. glauc was alike in the same climatic zones, but dif- fered in the different climatic zones, the growth in the south subtropical zone was higher than that in the north tropi- cal zone, the order of the growth linear gradient was the same as the trend of the effect on slope in different climatic zones. It is showed that the degree of effect on slope in M. glauc growth varied under different habitat condition.
出处
《林业科学研究》
CSCD
北大核心
2012年第6期789-794,共6页
Forest Research
基金
中国林业科学研究院热带林业实验中心自筹项目"灰木莲引种驯化研究(RLZX2009-01)"
中央级公益性科研院所基本科研业务费专向资金项目"珍贵树种多目标经营技术研究"(RITFKYYW2010-05)
关键词
灰木莲
坡位
生长量
Manglietia glauc
slope position
increment
