【摘要】 为了研究林火干扰对中华楠Machilus chinensis更新恢复的影响,更好地培育和经营中华楠人工林,对3 a生中华楠人工更新林分和林火干扰后天然更新3 a的林分生长进行调查和分析。结果表明,研究地的林火强度为中度火烧,林火干扰后中华楠天然更新林分萌生率为48.17%。中华楠天然更新林分树高年生长量、地径年生长量和冠幅年生长量分别为0.50 m、1.20 cm和30.66 cm,分别比人工更新林分大25.00%、53.85%和34.06%。林火干扰后中华楠天然更新林分31.38%林木的生长性状优于人工更新林分,16.79%林木未表现出明显差异。更多还原

【Abstract】 To study the effects of forest fire disturbance on the regeneration and restoration of Machilus chinensis,and to improve the cultivation and management of M.chinensis plantation forests,the growth of 3-year-old M.chinensis in both artificial and natural regeneration stands after forest fire disturbance was investigated and analyzed. The results showed that the fire intensity was moderate,and the emergence rate of M.chinensis natural regeneration stand was 48. 17%. The annual growth rates for tree height,ground diameter,and crown width in M.chinensis natural regeneration stand were 0. 50 m, 1. 20 cm,and 30. 66 cm,respectively,which were 25. 00%, 53. 85% and 34. 06% higher than that of artificial regeneration stand. The growth traits of 31. 38% of M.chinensis trees in the natural regeneration stand were better than those in the artificial regeneration stand,while 16. 79% showed no significant difference in growth traits.更多还原