Tolerance of Sphagnum to water level
Tolerance of Sphagnum to water level
复制标题
泥炭藓对水位的耐受性
DOI：
10.1179/jbr.1985.13.4.571
复制
发表时间：
1985
影响因子：
1.9
通讯作者：
A. McDonald
中科院分区：
文献类型：
--
作者：
H. Rydin;A. McDonald
摘要四种泥炭藓生长于富水沼泽中不同水位以上。在一个实验中，这些物种在沼泽池中以恒定的水位生长，在另一个实验中，在移植实验中以波动的水位生长。总的趋势是随着水位以上高度的增加，光合能力降低。这表明空心物种（S。balticum和S. tenellum）不能耐受丘址，而丘种（S. fuscum和S. Rubellum）可以很好地在空洞的环境条件下生存，但由于生物因素而缺席。
AbstractFour species of Sphagnum which occur on ombrotrophic mires were grown at different levels above the water table. In one experiment the species were grown at constant water levels in a bog pool and, in another, at fluctuating water levels in a transplant experiment. A general trend was found of decreasing photosynthetic capacity with increasing height above the water table. This indicates that the hollow species (S. balticum and S. tenellum) are unable to tolerate the hummock sites, whereas the hummock species (S. fuscum and S. rubellum) could well survive the environmental conditions of the hollows but are absent because of biotic factors.