中龄林修枝对杉木林生长和材种结构的影响研究
Effects of pruning on growth and species structure of middle-aged Chinese fir plantation
为培育杉木大径级无节柱材,探讨修枝对杉木林生长和材种结构的影响规律,2003年以 17年生杉木中龄林为研究对象,设计杉木人工林修枝与不修枝试验,2023 年在中龄林修枝 20 年后进行修枝对杉木人工林生长和材种结构影响的研究。结果表明:中龄林修枝前 2a内显著促进了杉木胸径年生长量,对树高、蓄积量年生长量没有显著影响,随后修枝对杉木胸径、树高、蓄积量年生长量的影响逐渐减弱,修枝 20年后修枝对杉木林胸径、树高、蓄积量的影响均不显著。中龄林修枝20…查看全部>>
In order to cultivate the knot-free log of Chinese fir and explore the influence of pruning on the growth and timber structure of Chinese fir,a pruning and non-pruning experiment of Chinese fir plantation was designed in 2003 with 17-year-old Chinese fir middle-aged plantation as the research object.In 2023,the effects of pruning on the growth and timber structure of Chinese fir plantation were studied after 20 years of pruning in middle-aged plantation.The …查看全部>>
江宇;黄瑜成;孙麟钧;林华章;林照授;吴鹏飞;李明;林开敏;马祥庆;
S791.27
pruning Chinese fir growth biomass middle-aged plantation
905-915 / 11
评论