【摘要】 为探讨桉树择伐后套种阔叶树的可行性和适生性,摸索适宜的桉树套种混交模式,对闽南山地桉树人工林择伐后分别套种米老排、卷荚相思、灰木莲所形成的复层异龄混交林分的生长量及土壤理化性状进行调查分析。结果表明:1)桉树择伐后,采用3桉∶3阔的行带状方式套种米老排、卷荚相思、灰木莲的不同混交林中,3个阔叶树种的保存率均较高且生长良好,均可达到速丰林的年均生长量标准;桉树—米老排、桉树—卷荚相思、桉树—灰木莲混交均可以有效促进桉树的生长,并在一定程度上改善土壤理化性状。2)套种后混交林中的桉树树高、胸径、材积分别比纯林提高3.35%～11.24%、4.05%～12.32%和11.85%～40.59%。3)米老排、卷荚相思和灰木莲与桉树的套种方式可作为桉树纯林择伐后套种混交的推荐模式。更多还原

【Abstract】 In order to study the feasibility and suitability of interplanting broad-leaved trees after selective felling of Eucalyptus, a suitable mixed pattern of interplanting Eucalyptus was explored. The growth and soil physical and chemical properties of the multilayered mixed stands of Eucalyptus plantations in southern Fujian were investigated and analyzed after selective cutting. The results show that: 1) After a selective felling of Eucalyptus, different mixed forests were formed by intercropping Manglietia and Acacia capitalis and Manglietia chinensis with line and band patterns of 3 Eucalyptus trees: 3 broadleaf trees, and the three broad-leaved tree species all had high preservation rate and were all in good growth, which can meet the annual average growth standard of fast-growing and abundant forests, and mixed patterns of Eucalyptus+Mytilaria, Eucalyptus +Acacia, Eucalyptus+Magnolia can effectively promote the growth of Eucalyptus, and improve soil physical and chemical properties to a certain extent. 2) After interplanting, the height,DBH and timber volume of Eucalyptus in mixed forests increased by 3.35%-11.24%, 4.05%-12.32% and 11.85%-40.59% respectively compared with those of pure forest. 3) The patterns of Eucalyptus plantation after selective felling interplanting Mytilaria, Manglietia,Acacia could be recommended in production practice.更多还原