文献类型：期刊文献

英文题名：Novel evidence for within-species leaf economics spectrum at multiple spatial scales

作者：Hu, Yu-Kun[1,2] Pan, Xu[1,3] Liu, Guo-Fang[2] Li, Wen-Bing[1] Dai, Wen-Hong[1] Tang, Shuang-Li[2] Zhang, Ya-Lin[2] Xiao, Tao[1] Chen, Ling-Yun[1] Xiong, Wei[1] Zhou, Meng-Yao[1] Song, Yao-Bin[1] Dong, Ming[1,2]

第一作者：Hu, Yu-Kun

通信作者：Song, YB[1]

机构：[1]Hangzhou Normal Univ, Key Lab Hangzhou City Ecosyst Protect & Restorat, Coll Life & Environm Sci, Hangzhou, Zhejiang, Peoples R China;[2]Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing, Peoples R China;[3]Chinese Acad Forestry, Inst Wetland Res, Beijing, Peoples R China

年份：2015

卷号：6

期号：OCTOBER

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-84947443274);WOS:【SCI-EXPANDED(收录号:WOS:000364371000001)】；

基金：We are very grateful to Can Jiang, Hong-Ke Xu, Yan-Fang Fang, Ze-Ning Jin, and Xu-Yan Liu for laboratory assistance and to Johannes H. C. Cornelissen for helpful suggestions. This work was supported by the NSFC (Grants: 31261120580; 31400346; 41401556) and the Innovative R & D grant (201203) from Hangzhou Normal University.

语种：英文

外文关键词：intraspecific variation; leaf economics spectrum (LES); leaf economic traits; spatial scales; trade-offs; trait relationships; wetland plant

摘要：Leaf economics spectrum (LES), characterizing covariation among a suite of leaf traits relevant to carbon and nutrient economics, has been examined largely among species but hardly within species. In addition, very little attempt has been made to examine whether the existence of LES depends on spatial scales. To address these questions, we quantified the variation and covariation of four leaf economic traits (specific leaf area, leaf dry matter content, leaf nitrogen and phosphorus contents) in a cosmopolitan wetland species (Phragmites australis) at three spatial (inter-regional, regional, and site) scales across most of the species range in China. The species expressed large intraspecific variation in the leaf economic traits at all of the three spatial scales. It also showed strong covariation among the four leaf economic traits across the species range. The coordination among leaf economic traits resulted in LES at all three scales and the environmental variables determining variation in leaf economic traits were different among the spatial scales. Our results provide novel evidence for within-species LES at multiple spatial scales, indicating that resource trade-off could also constrain intraspecific trait variation mainly driven by climatic and/or edaphic differences.