C:N:P stoichiometry of Ericaceae species in shrubland biomes across Southern China:influences of climate,soil and species identity

作     者：Qiang Zhang Qing Liu Huajun Yin Chunzhang Zhao Lin Zhang Guoying Zhou Chunying Yin Zhijun Lu Gaoming Xiong Yuelin Li Jiaxiang Li Wenting Xu Zhiyao Tang Zongqiang Xie 

作者机构：State Key Laboratory of Vegetation and Environment ChangeInstitute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of SciencesBeijing 100049China Key laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China Key Laboratory of Alpine Ecology and Biodiversity of Chinese Academy of SciencesInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Northwest Institute of Plateau BiologyChinese Academy of SciencesXining 810008 Key Laboratory of Aquatic Botany and Watershed EcologyWuhan Botanical GardenChinese Academy of SciencesWuhan 430074China South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China College of ForestCentral South University of Forestry&TechnologyChangsha 410004China Department of EcologyCollege of Urban and Environmental Sciences and Key Laboratory for Earth Surface ProcessesPeking UniversityBeijing 100871China 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2019年第12卷第2期

页      面：346-357页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：This work was supported by the‘Strategic Priority Research Program-Climate Change:Carbon Budget and Related Issues’of the Chinese Academy of Sciences(#XDA05050300) 

主　　题：biogeographic pattern phylogenetic effect closely related species,Ericoid Mycorrhiza shrub 

摘      要：Aims Carbon(C),nitrogen(N)and phosphorus(P)stoichiometry strongly affect functions and nutrient cycling within ***,the related researches in shrubs were very *** this study,we aimed to inves-tigate leaf stoichiometry and its driving factors in shrubs,and whether stoichiometry significantly differs among closely related *** We analyzed leaf C,N and P concentrations and their ratios in 32 species of Ericaceae from 161 sites across southern *** examined the relationships of leaf stoichiometry with environmen-tal variables using linear regressions,and quantified the interactive and independent effects of climate,soil and species on foliar stoi-chiometry using general linear models(GLM).Important Findings The foliar C,N and P contents of Ericaceae were 484.66,14.44 and 1.06 mg g−1,*** C,N and P concentrations and their ratios in Ericaceae were significantly related with latitude and altitude,except the N:P insignificantly correlated with ***(mean annual temperature and precipitation)and soil properties(soil C,N and P and bulk density)were significantly influenced element *** GLM analysis showed that soil exerted a greater direct effect on leaf stoichiometry than climate did,and climate affected leaf traits mainly via indirect ***,soil properties had stronger influ-ences on leaf P than on leaf C and *** all independent factors examined,we found species accounted for the largest proportion of the variation in foliar *** results suggest that species can largely influence foliar stoichiometry,even at a lower taxonomic level.