沙地樟子松林与天然更新问题探讨  

Pinus sylvestris var.mongolica Litv. Forest and Natural Regeneration in Sandy Land

作　　者：闫德仁[1] 牟宁[1] 张健 张秀华 

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]兴安盟林业科学研究所,内蒙古乌兰浩特137400 [3]乌兰浩特市工程建设管理站,内蒙古乌兰浩特137400

出　　处：《内蒙古林业科技》2011年第3期43-46,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：内蒙古自然科学基金项目(编号:2010MS0518)资助

摘　　要：呼伦贝尔沙地是我国重要的樟子松林种源地。从1955年开始在其他地区进行引种造林并获得成功,但是多数引种地的樟子松人工林天然更新却不能正常进行。本文结合资料论述了沙地樟子松天然林起源与分布和自然更新特点,并分析探讨了引种地沙地樟子松人工林自然更新的障碍、影响因素以及冬季降雪影响更新等可能的关键因子等问题。Hulunbeier Sandy Land is an important seed source area of Pinus sylvestris var. mongolica Litv. in our country. Since 1955, the introduction and afforestation of Pinus sylvestris var. mongolica Litv. have been begun and succeeded in other districts, but the Pinus sylvestris var. mongolica Litv. plantation couldn＇ t regenerate naturally in many introduction districts. Combined with the relative materials, the origin, distribution and the characters of nat- ural regeneration of Pinus sylvestris var. mongolica Litv. natural forest have been discussed, and the factors influen- cing the natural regeneration of Pinus sylvestris var. mongolica Litv. plantation have been analyzed.

关 键 词：沙地樟子松 分布 自然更新 限制因素 

分 类 号：S791.253[农业科学—林木遗传育种] S754.1[农业科学—林学]