短轮伐期工业原料林营造试验

摘要

对多个树种进行不同树种、不同密度的随机区组造林试验，结果表明：鹅掌楸在林分结构、树高生长、胸径生长、成林性等方面都明显优于其他参试树种，可以在龙泉市作为短轮伐期工业原料林优选树种，毛红椿、香椿等生长速度不如鹅掌楸，但由于其木材的珍贵性，可以考虑培养大径级珍贵木材；4种密度试验表明，在造林后第4年差异不显著，从经济效益和林地单位面积产量考虑，作为工业原料林造林密度，可选择1.0 m×1.8 m密度。%Plantation was implemented in 2005 with different tree species, densities for short rotation industrial raw material forest in Longquan, Zhejiang province. Investigations in 2006 and 2008 demonstrated thatLiriodendron chinensehad advantages in terms of forest structure, height and DBH growth, and it would be the first choice for short rotation industrial raw material forest.Toona ciliata var.pubescensand T. sinensishad less growth, but their wood is precious, they were recommended to be planted for large diameter wood. Experiment on four stand densities resulted that it had no significant difference of growth four years later, 1.0 m×1.8 m was recommended for plantation of short rotation raw material forest considering economic benefit and unit area yield.