摘要
针对樟子松在大部分引种区天然更新困难的问题,在气候恶劣的章古台地区开展人工促进天然更新技术研究,结果显示:对樟子松母树进行浇水施肥,增加了母树结实量;整地有助于樟子松天然更新,提高了樟子松天然更新密度和更新幼苗抗旱能力;不同防寒覆盖措施试验以白沙土覆盖为最好,幼苗越冬保存率和幼苗状况较好,易于操作,是最好的覆盖模式,其次为纱布+覆土、覆土、地被植物+覆土;冬季积雪厚度影响樟子松幼苗越冬保存率,积雪厚度大有利于天然更新樟子松幼苗安全越冬。
Aiming at the difficult problem of natural-regenerated Pinus sylvestris var.mongolica in most introduc-tion area,the research on artificial promotion of natural regeneration technology in bad climate at Zhanggutai Region were carried out.Result shows that watering and fertilizing on Pinussylvestris var.mongolica can increase the seed production;soil preparation improve the regenerated density of Pinus sylvestris var.mongolica and drought resist-ance of regenerated seedlings;among different cold proof measures,mulching with the white sand soil,which is easy to operate,is the optimal mode to mulch,and the overwintering preservation rate and conditions of seedlings is opti-mal by using above-mentioned mulching mode;followed by gauze+soil mulching,soil mulching,groundcover plants+soil mulching;winter snow’s thickness affect the overwintering survival rate of seedlings of Pinussylvestris var.mongolica;the big thickness of snow is conducive to safe wintering the seedlings of Pinussylvestris var.mon-golica.
出处
《防护林科技》
2015年第8期16-18,共3页
Protection Forest Science and Technology
基金
辽宁省科技厅课题(2014207008)
关键词
章古台
樟子松
天然更新
Zhanggutai
Pinus sylvestris var.mongolica
natural regeneration
