CAJ | 학술논문

通过对章古台沙地樟子松、赤松、油松等3种不同针叶树种天然更新对比试验,结果表明,3种针叶树1年生天然更新强度分别为3 594～5 133、20 300～50 000和8 300～13 900株.hm-2;赤松天然更新的强度好于油松,油松好于樟子松;樟子松天然更新1年生幼苗较难越冬,经覆盖后幼苗越冬成活率达66%;赤松、油松1年生幼苗相对较易越冬,越冬成活率分别为17.20%和20%,经覆盖后幼苗越冬成活率分别为54.94%和51.28%。因此,应采取人工促进措施进行樟子松、赤松、油松天然更新。
통과대장고태사지장자송、적송、유송등3충불동침협수충천연경신대비시험,결과표명,3충침협수1년생천연경신강도분별위3 594～5 133、20 300～50 000화8 300～13 900주.hm-2;적송천연경신적강도호우유송,유송호우장자송;장자송천연경신1년생유묘교난월동,경복개후유묘월동성활솔체66%;적송、유송1년생유묘상대교역월동,월동성활솔분별위17.20%화20%,경복개후유묘월동성활솔분별위54.94%화51.28%。인차,응채취인공촉진조시진행장자송、적송、유송천연경신。
Comparative experiments of natural regeneration for Pinus sylvestris var.mongolica,Pinus densiflora Sieb et Zucc.and Pinus tabulaeformis exist on Zhanggutai’s sandyland in Zhangwu county of Liaoning province were conducted.Natural regeneration intensity of one-year-old three conifer species are separately 3 594-5 133,20 300-50 000 ＆ 8 300-13 900 plants·hm-2;the intensity of natural regeneration of Pinus densiflora Sieb et Zucc.is optimal than that of Pinus tabulaeformis;the intensity of natural regeneration of Pinus tabulaeformis is optimal than that of Pinus sylvestris var.mongolica;natural regeneration of one-year-old Pinus sylvestris var.mongolica seedlings are difficult to live through winter.Survival rate of seedlings should increase by 66% after covering.One-year-old seedlings of Pinus densiflora Sieb et Zucc.＆ Pinus tabulaeformis whose overwintering survival rate are 17.20% ＆ 20%,respectively,are relatively easy to live through winter;survival rate of seedlings are 54.94% ＆ 51.28% after covering.Therefore,artificial measures should be taken to promote the natural regeneration of Pinus sylvestris var.mongolica,Pinus densiflora Sieb et Zucc.,Pinus tabulaeformis. 更多