巨尾桉株行配置造林试验研究

Study on the Plantation Spacing of E.grandis×E.urophlla

关键词:  巨尾桉  株行配置

Key words:  E.grandis×E.urophlla  plantation spacing

摘要:

巨尾桉是最速生高产的桉树,在相同的条件下造林,单位面积株数相等(1665株/hm²),采取四种株行配置造林方式,生长差异非常明显,株行距1m×6m的,定植后3年5个月,平均树高13.72m,平均胸径10.14cm,蓄积量68.76m³/hm²,长势名列前茅。

Abstract:

E. grandis×E. urophlla is the most quickly-growth and highest yield in Eucalyptus. Under the same condition and the equal number of trees in a unit area (1665 N/hm²). There were significent differences in growth among the four treatments of plantation spacing. The trees with the space of 1m×6m 3.5 years after plantation had an average height of 13.72 m and average diameter at breast height of 10.14 cm, growing stores was 68.76 m³/hm². The growth is in the first place.