不同遮荫度对南方红豆杉幼树生长量的影响试验

Effect of Different Shading Degrees on Growth of Taxus chinesis Young Trees

开展南方红豆杉3种不同遮荫度(遮荫度为50%的黑色遮荫网、遮荫度为85%的黑色遮荫网和不遮荫即对照)对3.6月龄南方红豆杉树高、地径、侧枝数、地上部分生物量、地下部分生物量、全株生物量、地下部分主根长和地下部分主根径8个生长指标的影响试验,经比较分析、方差分析和LSD多重比较分析,结果表明:遮荫度为50%的黑色遮荫网对南方红豆杉的树高、地径、侧枝数、地上部分生物量、地下部分生物量、全株生长量、地下部分主根长和地下部分主根径的生长均较好,适宜在南方红豆杉幼树培育中大量推广使用。

The effects test of different shading degree（ 50% shading of black net,80% shading of black net and non-shading control） on tree height,diameter,branch number,aboveground biomass,underground biomass,total plant biomass,underground root length and underground part taproot diameter of 3and 6 months old Taxus chinensis have been carried out. After multiple comparison analysis and variance analysis,results showed that eight growth indexes of Taxus chinensis young tree performed better than control in 50% shading of black net which could promote in seedlings cultivation of Taxus chinensis.