摘要
根据山杨林的特征及其病虫害情况(山杨林的病害主要有混合干基腐朽和树干腐朽),论述了山杨林立木腐朽与林木年龄、林木组成、坡向的关系及对立木材积的影响。
According to the characteristics and disease in poplar forest（the main disease are tree base and stem decayed）,this paper states the relationship between decayed tree and stand age,forest composition and slope directions.It also states the effect of diseases on standing tree volume.
出处
《林业科技情报》
2012年第3期16-17,共2页
Forestry Science and Technology Information
关键词
山杨林
病害
林分因子
立木
影响
poplar
disease
stand attributes
standing tree
effect
