文献类型：期刊文献

英文题名：Morphological Response of Eight Quercus Species to Simulated Wind Load

作者：Wu, Tonggui[1] Zhang, Peng[1] Zhang, Lei[1] Wang, Geoff G.[2] Yu, Mukui[1]

第一作者：吴统贵

通信作者：Wu, TG[1];Yu, MK[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, East China Coastal Forest Ecosyst Long Term Res S, Hangzhou 311400, Zhejiang, Peoples R China;[2]Clemson Univ, Dept Forestry & Environm Conservat, Clemson, SC 29634 USA

年份：2016

卷号：11

期号：9

外文期刊名：PLOS ONE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000383893500049)】；

基金：The project was supported by the National Natural Science Foundation of China (No. 31200533), the Program for Zhejiang Leading Team of S&T Innovation (2011R50027), and CFERN & GENE Award Funds on Ecological Paper.

语种：英文

摘要：Leaf shape, including leaf size, leaf dissection index (LDI), and venation distribution, strongly impacts leaf physiology and the forces of momentum exerted on leaves or the canopy under windy conditions. Yet, little has been known about how leaf shape affects the morphological response of trees to wind load. We studied eight Quercus species, with different leaf shapes, to determine the morphological response to simulated wind load. Quercus trees with long elliptical leaves, were significantly affected by wind load (P<0.05), as indicted by smaller specific leaf area (SLA), stem base diameter and stem height under windy conditions when compared to the control. The Quercus trees with leaves characterized by lanceolate or sinuous edges, showed positive morphological responses to wind load, such as bigger leaf thickness, larger stem diameter, allocation to root biomass, and smaller stem height (P<0.05). These morphological responses to wind can reduce drag and increase the mechanical strength of the tree. Leaf dissection index (LDI), an important index of leaf shape, was correlated with morphological response to wind load (P<0.05), including differences in SLA, in stem base diameter and in allocation to root biomass. These results suggest that trees with higher LDI, such as those with more and/or deeper lobes, are better adapted to wind load.