摘要
在兴隆山保护区,实测105棵山杨的15年胸径数据统计分析得出:山杨平均胸径年增长0.15 cm,生长较慢。生长受树龄、气候和立地条件制约。
In Xinglongshan Nature Reserve, data statistic analysis of diameter at breast height of 105 Populus davidiana for 15 years were measured in this paper, the results showed： average annual growth of diameter at breast height was 0.15 cm, growth was slower. Growth was restricted by tree age, climate and site conditions.
出处
《甘肃林业科技》
2012年第1期30-32,共3页
Journal of Gansu Forestry Science and Technology
关键词
山杨
胸径
增长
研究
Populus davidiana
diameter at breast height
growth
study
