摘要
文中对集约经营与粗放经营杨树人工林的生物量及其在各器官中的分布进行了研究。结果表明，经营方式对林分生物量生长影响显著，集约经营林木的生物量总值及其在各器官中的分布值明显高于粗放经营林。在生物量分布中，干重与根重所占的比重较大。应用幂函数方程，建立了各器官生物量与树高、胸径因子之间的关系方程。由于生物量生长与材积生长关系密切，结合材积生长数据，对两林分干生物量、总生物量的生长进行了预测。为合理培育杨树人工林提供了科学的依据。
? The biomass and its allocation in all kinds of organs(branch, stem, leaf and root ) was studied in intensive and extensive cultured poplar plantations. The relationship between growth factors (Height, Diameter at breast height) and biomass was established. Combined the volume data, the dynamics of stem biomass and total biomass in two plantations were studied. The results showed that the effects of cultivation measures on the production of biomass were significant in the two plantations. The value of biomass and its distribution in all kinds of organs were higher in intensive plantation than in extensive culture one. So intensive culture measures should be taken in managing poplar plantation and the suitable age for cutting is at about 13 years.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1997年第5期53-56,共4页
Journal of Northeast Forestry University
基金
国家自然科学基金
关键词
集约经营
粗放经营
杨树
人工林
生物量
Intensive culture
Extensive culture
Poplar
Plantation
Biomass
