【摘要】 为研究退化大叶相思林套种改造的适宜期,在珠海市大镜山水库区退化大叶相思林,选取了退化严重、中度、轻度3个不同退化程度片区,对3个片区中套种的山杜英、枫香和火力楠的生长情况进行了4年的比较研究。结果表明:山杜英、枫香和火力楠在3个片区套种均能适应,但山杜英在退化严重的大叶相思林片区中生长相对较好,而枫香和火力楠则在退化轻度的片区中生长情况更优。初步显示了退化大叶相思林在不同退化期均适宜开展套种改造,但须根据退化程度选择适宜的套种树种。更多还原

【Abstract】 The suitable period of interplanting was studied in degenerated Acacia auriculaeformisstands. In the degenerated Acacia auriculaeformisstands of Daqingshan reservoir area of Zhuhai City, three areas with severe degradation, moderate and mild degradation were selected.The growth ofElaeocarpus sylvestris,Liquidambar formosana, and Micheliamacclureiin three areas was compared for 4 years. The results show that the interplanting tree species such as Elaeocarpus sylvestris,Liquidambar formosana, and Micheliamacclureigrow normally in the areaswithdifferent degrees of degenerated Acacia auriculaeformis stands. And the growth of Elaeocarpus sylvestriswas relatively better in the degenerated severely area, while Liquidambar formosanaand Micheliamacclurei grew better in the degenerated slightly area. The degenerated Acacia auriculaeformisstandswas suitable forstand improvement by interplanting tree speciesin different degeneration period, and the suitable interplanting species should be selected according to the degree of degeneration.更多还原