亚马逊雨林中树叶δC值的分层
Stratification of δC values of leaves in Amazonian rain forests.
作者信息
Medina E, Minchin P
机构信息
Instituto Venezolano de Investigaciones Cientificas, Centro de Ecologia, Aptdo. 1827, Caracas, Venezuela.
Physics and Engineering Laboratory, Department of Scientific and Industrial Research, Lower Hutt, New Zealand.
出版信息
Oecologia. 1980 Jan;45(3):377-378. doi: 10.1007/BF00540209.
The contribution of soil respiration to the photosynthesis of the shade flora in the Amazon forest was evaluated by measuring the δC values of leaves collected at different levels in two forest communities. Canopy leaves have an average δC of-30.5‰ in the podsol forest and-28.7‰ in the laterite forest. Leaves from plants in the lower forest strata have a significantly lower value of-35.2‰ in the podsol forest and-34.3‰ in the laterite forest.
通过测量两个森林群落中不同层次采集的树叶的δC值，评估了土壤呼吸对亚马逊森林中阴生植物光合作用的贡献。在灰化土森林中，树冠层树叶的平均δC值为-30.5‰，在红土森林中为-28.7‰。在灰化土森林中，森林下层植物的树叶δC值显著较低，为-35.2‰，在红土森林中为-34.3‰。
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