文献类型：期刊文献

英文题名：Leaf nitrogen and phosphorus stoichiometry across forty-two woody species in Southeast China

作者：Wu, Tong-Gui[1] Yu, Mu-Kui[1] Wang, G. Geoff[2] Dong, Yi[1] Cheng, Xiang-Rong[1]

第一作者：吴统贵

通信作者：Yu, MK[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China;[2]Clemson Univ, Sch Agr Forestry & Environm Sci, Clemson, SC 29634 USA

年份：2012

卷号：44

起止页码：255-263

外文期刊名：BIOCHEMICAL SYSTEMATICS AND ECOLOGY

收录：;Scopus(收录号：2-s2.0-84862758683);WOS:【SCI-EXPANDED(收录号:WOS:000307692100042)】；

基金：The project was supported by the '948' Program of the State Forestry Administration of China (No. 2010-4-23), the Key Foundation of Science and Technology in Zhejiang Province (No. 2011C12016), and the Research Institute of Sub-tropical Forestry Fund (No. RISF6154). We are grateful for all of the supports above.

语种：英文

外文关键词：Hangzhou Bay Coastal Shelter Forest; Experimental Site; Leaf nitrogen (N) and phosphorus (P) stoichiometry; Functional groups; Leaf traits; Nutrient limitation

摘要：Ecological stoichiometry is an indicator of function and nutrient limitation from individual to ecosystem levels, yet it is still unclear whether leaf stoichiometry patterns are homologous at different scales. We determined the leaf nitrogen (N) and phosphorous (P) concentrations, N:P ratio and leaf traits across 42 woody species planted at Hangzhou Bay Coastal Shelter Forest Experimental Site in Southeast China. We analyzed variation patterns in leaf stoichiometry, correlated leaf stoichiometry with leaf traits, and determined nutrient limitations based on leaf stoichiometry. Leaf N and P concentrations and N:P ratio averaged 18.58 mg g(-1), 2.24 mg g(-1) and 9.56, respectively. Leaf N and P concentrations were positively correlated while leaf P and leaf N:P ratio were negatively correlated across all species. Leaf dry matter content (LDMC) had a significant relationship with leaf P concentration and N:P ratio for all species, while specific leaf area (SLA) was significantly related to leaf N concentration for broadleaf species. Leaf N concentration and N:P ratio varied greatly within a site. Among the 42 species, 27 were found to be limited by N, one by P, one co-limited by N and P. and the rest not limited by either N or P. Our results provide a theoretical guideline for the construction and management of coastal shelter forests in Southeast China. (c) 2012 Elsevier Ltd. All rights reserved.