摘要
以阔叶红松林下早春植物小叶芹为研究对象,调查各器官生物量动态变化情况。结果表明:在整个生长季节过程中,小叶芹各器官生物量总体呈先增加后减少变化趋势,各器官生物量达到最大值时间并不一致,总生物量与茎叶生物量为6月初,最大值分别为0.9 g和0.69 g;新根为6月末,最大值为0.2 g;老根为8月中旬,最大值为0.19 g。8月中旬以后,小叶芹各器官生物量迅速减少,植株进入衰败期。总生物量与茎叶生物量之间呈极显著线性正相关,而与根生物量之间相关性不显著。小叶芹在生长过程中地上生物量大于地下生物量。小叶芹总生物量随茎叶生物量增加而增加。
The biomass dynamic changes condition of each organ was investigated by choosing early spring plants Aegopodi- urn alpestre under broad - leaved korean pine forest as research object. The results show that biomass of each organ of Ae- gopodium alpestre presented a decrease after the first increase tendency in the process throughout the growing season. The time of biomass of each organ to reach the maximum was not consistent. The total biomass and leaf biomass was early June, the maximum value was 0.9 g and 0.69 g, respectively. The new roots was the end of June, the maximum was 0.2 g. The old roots was mid - August, the maximum was 0.19 g. The biomass of each organ of Aegopodium alpestre reduced rapidly and fell into decline phase after mid - August. The total biomass and stem leaf biomass presented linear positive correlation significantly. But it didn＇ t significant correlated with root biomass. The above - ground biomass was more than below - ground biomass in growth. The total biomass of Aegopodium alpestre increased with the increase of stem leaf biomass.
出处
《吉林林业科技》
2016年第1期33-35,59,共4页
Journal of Jilin Forestry Science and Technology
基金
国家"十二五"科技支撑项目"长白山阔叶红松林生物多样性保护关键技术研究与示范"(2012BAC01B03-1)
关键词
小叶芹
生物量分配
动态变化
Aegopodium alpestre
biomass allocation
dynamic change
