摘要
主要研究了刺五加地下茎的构筑型、地下茎长度及埋藏深度随不同群落类型的变化规律。结果表明，刺五加地下茎的构筑型基本上属于游击的稀疏线型，随群落环境有一定的适应性变化；地下茎长度随龄级和群落类型的不同而不同；地下茎的埋藏深度大小顺序是：皆伐迹地上＞蒙古栎林下的＞山杨林下的≥硬阔林下的．这种顺序主要是由各群落中与刺五加竞争的灌木和草本植物根系的深度变化以及土壤水分、养分状况决定的。
The architectural form,length and depth of rhizomes of Acanthopanax senticosus popula-tion and their variation with different community types are studied in this paper; The results show thatthe architecture of rhizomes of A. senticosus essentially belongs to the sparse guerrilla linear system,which has some adaptive changes under different community conditions. The length of the rhizomesvaries with age classes and community types.The comparative depth of the rhizomes in different commu-nities is:clear cutting area′ s>Quercus mongolica forest′s>Populus davidiana forest′s≥hardwood for-est′s.This order is mainly determined by the root depth of the shrubs and herbaceous plants which com-pete with A. senticosus,and by the water and nutrient regimes of soils.
基金
国家自然科学基金
关键词
刺五加
构筑型
根茎
构件
Acanthopanax senticosus,Architecture,Rhizome,Module
