文献类型：期刊文献

英文题名：Effect of environment and genetics on leaf N and P stoichiometry for Quercus acutissima across China

作者：Zhang, Hui[1,2] Guo, Weihong[1,2] Wang, G. Geoff[3] Yu, Mukui[1] Wu, Tonggui[1]

第一作者：Zhang, Hui

通信作者：Wu, TG[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]Shanxi Agr Univ, Coll Forestry, Taigu 030801, Shanxi, Peoples R China;[3]Clemson Univ, Dept Forestry & Environm Conservat, Clemson, SC 29634 USA

年份：2016

卷号：135

期号：4

起止页码：795-802

外文期刊名：EUROPEAN JOURNAL OF FOREST RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000379524900016)】；

基金：We thank Lauren Pile and two anonymous reviewers for their helpful comments. The project was supported by the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (No. CAFYBB2014ZD002) and the National Natural Science Foundation of China (No. 31570583).

语种：英文

外文关键词：Leaf stoichiometry; Homeostasis; Site environment; Provenance; Provenance test forest; Quercus acutissima

摘要：Plant stoichiometry varies mainly with environment and taxonomic affiliation (genetics). Understanding how environment and genetics regulate plant stoichiometry would help us to better understand stoichiometric homeostasis. Recent studies quantified the effect of environment and genetics on plant stoichiometry for multispecies over a large scale, but few studied the effect within a given species. Provenance tests are best suited to study the effect of environment (site) and genetics (provenance) on stoichiometry and assess the homeostasis for a given species. We determined leaf N and P concentrations for 29 Quercus acutissima provenances, from across the distribution in China, grown in three common gardens with different environments. Compared to the statistically insignificant provenance effect, site effect was large and statistically significant for leaf N and P stoichiometry (P < 0.05), with 43.47, 44.04, and 59.38 % of the total variations accounted for leaf N and P concentrations and N/P ratio, respectively. Meanwhile, the slopes of SMA (Standardized Major Axis) for leaf N concentration and N/P ratio, and leaf P concentration and N/P ratio, remained similar among the sites. Our results suggest that leaf N and P stoichiometry is mainly impacted by environment for a given species, and relative stability of leaf stoichiometric relationships is found independent of site environment, which supports stoichiometric homeostasis.