【摘要】 对7年生杂交鹅掌楸进行间伐试验,结果表明,间伐2 a多后,在2 m×4 m、4 m×4 m和4 m×6 m 3个间伐密度中,2 m×4 m和4 m×4 m两者的胸径增长十分相近,为31.5%,密度4 m×6 m胸径增长最大,为45.4%,它与密度2m×4 m或4 m×4 m比较有44%的增长。更多还原

【Abstract】 7 year-old Liriodendron chinense × L. tulipifera forests were thinned in three density of 2 m×4 m、4 m×4 m and 4m×6 m, the result showed in 29 months of thinning that growth of diameter of trees with density of 2 m×4 m or 4 m×4 m is31.5%, 45.4% with density of 4 m×6 m, growth of diameter of tree with density of 4 m×6 m is 44.1% more than that of 2 m×4 m or 4 m×4 m.更多还原