摘要
林木枝下高直接影响树木的生长和树干形状,建立林木枝下高动态模型可以了解林木或林分的生长规律.分析了枝下高与林分密度和树高的关系,利用节子剖析数据,结合落叶松高生长数据,建立了落叶松人工林的枝下高动态预测模型.并讨论了其动态预测模型在整枝高度、树冠基部高度和合理间伐时间的确定中的应用.
Under branch height has direct impact on woods＇growth and trunks＇form, so dynamic model established with under branch height can reflect the growth of woods and stands. The paper analyzes the relationship of under branch height with stand density and tree height, and establishment of dynamic predication model of Larix gmelinii, combined with data of Larix gmelinii high growth. It also discusses the application of the model to pruning height, crown root height and definition of favorable time for intermediate cutting.
出处
《林业调查规划》
2008年第1期21-24,共4页
Forest Inventory and Planning
关键词
林木枝下高
节子
林木整枝
人工落叶松
under branch height
gnarl
pruning
artificial Larix gmelinii
