文献类型：期刊文献

英文题名：Altitudinal Patterns of Leaf Traits and Leaf Allometry in Bamboo Pleioblastus amarus

作者：Guo, Ziwu[1] Lin, Hua[2] Chen, Shuanglin[1] Yang, Qingping[1]

第一作者：郭子武

通信作者：Guo, ZW[1];Chen, SL[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou, Zhejiang, Peoples R China;[2]Forestry Bur Shaxian Cty, Shaxian, Peoples R China

年份：2018

卷号：9

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000440278500001)】；

基金：This study was funded by the Fundamental Research Funds for Central Non-Profit Research Institutes (Grant No. CAFYBB2016SY007) and the National Natural Science Foundation of China (Grant No. 31770447).

语种：英文

外文关键词：bamboos; altitude; leaf functional traits; clonal plants; allometric growth relationships

摘要：Awareness of local-scale variation in leaf traits for a single species and the relationships between these traits and their dependence on altitude might be essential for extrapolating ecophysiological processes from the leaf to the ecosystem level. While altitudinal patterns of leaf traits have been extensively studied in a number of species, little is known about such patterns in bamboos. We analyzed leaf functional traits and leaf allometric relationships of Pleioblastus amarus at three different altitudes (200, 400, and 800 m). With increasing altitude, most functional traits, including leaf length, width, perimeter, area, dry weight, and water content, decreased significantly, while the leaf length: width ratio exhibited a marked increase, resulting in a tendency toward narrow leaves. Specific leaf area first increased, and then decreased, while the change in leaf dry matter content showed the opposite trend. Leaf area was positively correlated with leaf length, leaf width and leaf perimeter, but negatively correlated with the leaf length: width ratio. With increasing altitude, the slopes of these relationships for leaf area first increased, and then decreased. Leaf biomass was positively correlated with leaf length, width, perimeter, and area, with the slopes of the relationships being the same at all altitudes. Thus, the leaves of this bamboo species at middle altitude have the highest specific leaf area and lowest leaf dry matter content. Our findings suggest that this bamboo species has a big potential of growth and morphological plasticity.