文献类型：期刊文献

英文题名：Tree stoichiometry and nutrient resorption along a chronosequence of Metasequoia glyptostroboides forests in coastal China

作者：Zhang, Hui[1] Wang, Jiannan[1] Wang, Jingyuan[1] Guo, Ziwu[1] Wang, G. Geoff[2] Zeng, Dehui[3] Wu, Tonggui[1]

第一作者：Zhang, Hui

通信作者：Wu, Tonggui

机构：[1] East China Coastal Forest Ecosystem Long-Term Research Station, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang, 311400, China; [2] Department of Forestry and Environmental Conservation, Clemson University, Clemson, SC, 29634-0317, United States; [3] State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China

年份：2018

卷号：430

起止页码：445-450

外文期刊名：Forest Ecology and Management

收录：EI(收录号：20183605765782);Scopus(收录号：2-s2.0-85052452565)

语种：英文

外文关键词：Efficiency - Nutrients - Forestry - Stoichiometry

摘要：Variations in carbon (C), nitrogen (N) and phosphorus (P) stoichiometry and nutrient resorption during stand development are essential indicators for assessing forest degradation. Yet, their patterns along a chronosequence have been inconsistent. In this study, we analyzed the patterns of tree (leaf, branch, and root) C, N, P stoichiometry and nutrient resorption along a chronosequence of Metasequoia glyptostroboides forests (young forests: 7-, 12-year old; middle aged forests: 22-, 28-year old; and mature forests: 33-, 37-year old) in subtropical coastal China. We found that no significant trend was displayed along the chronosequence for both tree N concentrations and N resorption efficiency (NRE). Both tree P concentrations and P resorption efficiency (PRE) were higher, while tree C:P, and N:P were lower in young forests than those in middle-aged and mature forests. These results suggested that tree P stoichiometry and PRE were most strongly associated with forest degradation. Leaf P stoichiometry (P concentration, C:P, and N:P) was impacted more by soil stoichiometry, and leaf P concentration and N:P increased exponentially along soil P concentration and N:P, respectively. While branch, root P stoichiometry and PRE were affected more by tree age. Overall, our findings suggested that P deficiency was the leading factors, in terms of nutrients, for the M. glyptostroboides forests degradation in coastal China. ? 2018 Elsevier B.V.