摘要
对25年生木荷+杉木混交林及对照纯林树高、胸径、冠幅、枝下高、单株立木材积、单位面积蓄积量进行了分析,结果表明:除木荷树高性状外,混交林、纯林间各性状差异均显著;混交林杉木、木荷树高生长量分别比纯林高9.0%和-6.3%,胸径生长量分别比纯林高6.1%和17.1%,冠幅生长量分别比纯林高2.5%和5.6%,枝下高生长量分别比纯林高8.0%和11.6%,单株立木材积分别比纯林高16.9%和10.6%,单位面积蓄积量分别比纯林低53.2%和33.7%;混交林单位面积总蓄积量比杉木纯林高10.0%,比木荷纯林高15.4%。
The tree height,DBH,crown width,height under branches,stand volume per plant and volume per unit area of 25-year-old mixed forest of Schima superba and Cunninghamia lanceolata and control pure forest were studied.The results showed that there were significant differences in various characters between mixed forest and pure forest except for the height of S.superba.Compared with the characteristic of the pure forest,the height growth of C.lanceolata and S.superba of the mixed forest was 9.0%and 6.3%higher,the DBH growth was 6.1%and 17.1%higher,the crown growth was 2.5%and 5.6%higher,the growth of height under branches was 8.0%and 11.6%higher,the integral of standing wood per plant was 16.9%and 10.6%higher,and the volume per unit area was 53.2%and 33.7%lower.The total volume per unit area of mixed forest was 10.0%higher than that of pure C.lanceolata forest and 15.4%higher than that of pure S.superba forest.
作者
陈庆武
Chen Qingwu(Ningde Fukou State-owned Forest Farm of Fujian Province,Ningde 352108,Fujian)
出处
《防护林科技》
2022年第3期27-29,共3页
Protection Forest Science and Technology
关键词
木荷
杉木
混交林
纯林
Schima superba
Cunninghamia lanceolata
mixed forest
pure forest
