摘要
通过林下造林、林下直播、林隙造林和林隙人工促进天然更新对黄菠萝幼树的成活率、冻害率及生长进行了研究。结果表明:黄菠萝更新的最好方式为林隙人工促进天然更新,其成活率为100%、无冻害发生、而且长势良好;其次是林下直播,成活率为83.34%,无冻害发生,但幼树长势较弱;第三是林隙造林,其成活率为92.22%,冻害率为13.33%、冻害长度为29.50 cm;第四是林下造林,其成活率为69.83%、冻害率为47.78%,冻害长度为16.67 cm。
Survival rate, freeze injury rate and growth on young trees of Phellodendron amurense had been studied by four means that were forest afforestation, forest direct seeding, gap afforestation and gap artificial promotion of natural regeneration. The results showed that the best update way of Phellodendron araurense was gap artificial promotion of natural regeneration, its survival rate was 100%, no frost occurred, but also grew well; followed by forest direct seeding, its survival rate was 83.34%, no frost occurred, but young trees was growing weaker; third gap afforestation, its survival rate was 92. 22%, freeze injury rate was 13.33%, afforestation, its survival rate was was 16. 67cm. length of frost damageate was 29.50cm; the fourth was forest 69. 83%, freeze injury rate was 47. 78%, length of frost damageate
出处
《林业科技》
2010年第6期1-4,共4页
Forestry Science & Technology
基金
黑龙江省科技厅攻关项目"天然阔叶混交林可持续经营技术研究与示范"(GA07B301-03)
关键词
林下造林
林下直播
林隙造林
林隙人工促进天然更新
黄菠萝幼树生长
Forest afforestation
Forest direct seeding
Gap afforestation
Gap artificial promotion of natural regeneration
Young trees growth of Phellodendron amurense
