马尾松天然次生林抚育间伐试验研究  

The thinning experiments on the natural secondary forest of Pinus massoniana

作　　者：宋庆安[1] 李午平 唐效蓉[1] 邓国宁 王忠仁 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]湖南省林木种苗管理站,湖南长沙410007 [3]桂阳县林业局,湖南郴州423300

出　　处：《湖南林业科技》2005年第5期25-28,共4页Hunan Forestry Science & Technology

摘　　要：马尾松天然次生林的抚育间伐试验结果表明:不同间伐强度对林木单株的胸径和材积生长的影响存在着显著性差异,以保留密度0.9×115株/667 m2和1.0×115株/667 m2对胸径的生长影响效果最佳;但对林木的树高生长影响没有显著性差异。不同间伐强度对不同径阶胸径和材积生长的影响存在显著性差异,径阶越大其胸径和材积的生长就越快。不同间伐强度对林木蓄积量的影响也存在显著性差异,以保留密度1.1×115株/667 m2的蓄积量生长量最大,效果最为显著。The research of the thinning experiments on the natural secondary forest of Pinus massonia showed that： There were obvious difference in the single plant＇s DBH and volume in different thinning density, and the best effect in the thinning were 0.9 × 115 plants per 667 m^2 and 1.0× 115 plants per 667 m^2 ,and no obvious difference in height.There were obvious differences in the different diameter grade DBH and volume in different thinning density, and growth Master in the bigger diameter grade and volume plant. There was an obvious difference in the amount of growing stock in different thinning density with the best effect on the amount of growing stock shown with 1.1 × 115 plants per 667 m^2.

关 键 词：马尾松 天然次生林 抚育间伐 保留密度 

分 类 号：S753.3[农业科学—森林经理学]