期刊
ECOLOGICAL RESEARCH
卷 25, 期 5, 页码 967-972出版社
SPRINGER TOKYO
DOI: 10.1007/s11284-010-0724-0
关键词
Cynodon dactylon; Glechoma longituba; Nutrient use efficiency; Physiological integration; Potentilla reptans; Soil nutrient patches; Stoichiometry
类别
资金
- National Natural Science Foundation of China [30770335, 30870395]
Physiological integration facilitates clonal plants to deal with heterogeneous resources. However, little is known about how nutrient patchiness affects its use and stoichiometry in clonal plants. We conducted an experiment with Cynodon dactylon, Glechoma longituba, and Potentilla reptans to address the effects of physiological integration on nutrient use efficiency and N:P ratios. For C. dactylon, the effects of nutrient patchiness on N use efficiency (NUE), P use efficiency (PUE), and N: P ratio were stronger in daughter ramets than in parent ramets; for G. longituba, nutrient patchiness affected PUE and N: P ratio of parent and daughter ramets, but not NUE; for P. reptans, nutrient patchiness decreased NUE, PUE, and N: P ratio, regardless of parent or daughter ramets. PUE was associated with N: P ratios in three clonal plants and this association of NUE with N: P ratios varied with species. Our findings suggest that physiological integration alters nutrient use efficiency and N: P ratios of clonal plants under patchy nutrients and that these effects are linked to clonal species identity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据