不同林分类型林下套种草珊瑚生长比较

以16年生、25年生杉木人工林及22年生马尾松人工林林下套种的草珊瑚为研究对象,探讨不同林分类型、不同坡位对套种的草珊瑚生长量的影响。结果表明,不同林分类型套种的草珊瑚地径和当年抽高均表现为下坡位>中坡位>上坡位;同一林分类型下,不同坡位间草珊瑚地径生长量差异不显著,而当年抽高差异达极显著水平;16年生杉木人工林最有利于草珊瑚地径的生长,其次为25年生杉木人工林;16年生的杉木人工林最有利于草珊瑚的高生长,其次为22年生马尾松人工林。

Comparison of Growth of Sarcandra glabra Interplanted in Different Types of Forests

Sarcandra glabra interplanted in forests of 25-year-old Cunninghamia lanceolata,16-year-old Cunninghamia lanceolata and 22-year-old Pinus massoniana were acted as experimental forests,effects of different stand types,and different slopes on interplanted Sarcandra glabra were inverstigated in this paper.The results showed that different slopes of ground diameter and annual height growth of Sarcandra glabra interplanted in different types of forest showed downslope > midslope >upslope;According to the same type of forest,ground diameter growth difference of Sarcandra glabra at different slopes sites wasn’t evident,whereas annual height difference reached the extremely evident level;16-year-old Cunninghamia lanceolata forest had best effect on growth of ground diameter,and the 25-year-old Cunninghamia lanceolata forest was the better;As far as the growth of annual height was concerned,16-year-old Cunninghamia lanceolata forest had best effect on growth of annual height,and the 22-year-old Pinus massoniana forest was the better.