摘要
作者于1987—1988年对黄龙县蔡家川在畜牧业生产中有重要意义的黄背草进行了生物量测定,并研究了生物量的季节和空间变化。结果表明,黄背草群落生物量季节动态较明显,7月中旬达峰值;地下生物量在生长旺期偏低,枯黄期最高,这同植物生长发育阶段的物质运转有关。该研究为了解生物量积累动态,整个系统的物质循环和能量流动提供了基础资料。
This work was carried out in Caijiachuan of Huanglongxian County in 1987-1988. Themeda triandra var. japonica community has not only a wide range of distribution in the woodlands on loess plateau at north Shanxi province, but also an excellent quality so that it plays a very important role in the local development of animal husbandry. The study has focused on the seasonal and spatial changes in the biomass of aboveground part and underground part of the above community. The results show that the biomass of Themeda triandra var, japonica community has obviously seasonal dynamics with the peak value of biomass (202.1g/m) for the aboveground part reached in mid-July. The underground part has a lower biomass during the flourishing period and the maximum value of biomass during the withering period.This was found to be related to the organic matter transport at the growth and development stages.
出处
《生态学报》
CAS
CSCD
北大核心
1991年第2期117-124,共8页
Acta Ecologica Sinica
基金
国家自然科学基金
关键词
黄背草
植物群落
生物量
biomass, Themeda triadra war. japonica community, dyna-mics.
