沙地樟子松天然林野生苗特征研究  

Characteristics of Wilding of Natural Forest of Pinus sylvestris var.mongolica in Sandy Land

作　　者：杜敏 张宝珠 闫德仁[3] 王玉华 敖文明 乔殿学 阿日根扎 孙国臣 照日格图 

机构地区：[1]内蒙古呼伦贝尔市林业研究所,内蒙古海拉尔021000 [2]内蒙古鄂温克旗林业局,内蒙古巴彦套海021100 [3]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010

出　　处：《内蒙古林业科技》2008年第4期6-9,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家科技支撑项目(编号:2006BAD26B0402);科技厅项目(编号:2006)资助

摘　　要：选择不同密度母树、单株母树和火烧迹地等3种类型的样地,调查了樟子松天然更新苗特征。结果表明:母树密度不同,天然更新苗数量和年龄结构存在明显差异;樟子松天然更新苗年龄结构在时间上具有明显的不连续性,天然更新苗密度因林分类型的差异明显不同,并且和母树立地条件、树龄、空间分布等因素有关。The characteristics of natural regeneration seedlings of Pinus sylvestris var. mongolica have been investigated in the chosen sample area with seed trees at different density, single seed tree and burned area. The results show ： because of the different density of seed trees, there is obvious difference at the quantity and age structure of natural regeneration seedlings. The age structure of natural regeneration seedling of Pinus sylvestris var. mongolica can＇t be continuous at the time. The density of natural regeneration seedling is different with the different types of forest stand, which is related with site condition, tree age and spatial distribution.

关 键 词：樟子松 天然更新 年龄结构 呼伦贝尔沙地 

分 类 号：S791.253[农业科学—林木遗传育种]