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[1]郑跃芳,钟全林,程栋梁,等.亚热带4种林木幼苗的碳氮磷含量及其化学计量比特征[J].应用与环境生物学报,2017,23(2):379-383.[doi:10.3724/SP.J.1145.2016.09004]
 ZHENG Yuefang,,et al.Carbon, nitrogen, and phosphorus contents in four tree seedlings of subtropical plants and their stoichiometric ratio characteristics[J].Chinese Journal of Applied & Environmental Biology,2017,23(2):379-383.[doi:10.3724/SP.J.1145.2016.09004]
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亚热带4种林木幼苗的碳氮磷含量及其化学计量比特征()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
23卷
期数:
2017年第2期
页码:
379-383
栏目:
研究简报
出版日期:
2017-04-25

文章信息/Info

Title:
Carbon, nitrogen, and phosphorus contents in four tree seedlings of subtropical plants and their stoichiometric ratio characteristics
作者:
郑跃芳钟全林程栋梁张中瑞邓兴宇
1福建师范大学地理科学学院 福州 350007 2湿润亚热带山地生态国家重点实验室培育基地 福州 350007 3福建省植物生理生态重点实验室 福州 350007
Author(s):
ZHENG Yuefang1 2 3 ZHONG Quanlin1 2 3** CHENG Dongliang1 2 3 ZHANG Zhongrui1 2 3 & DENG Xingyu1 2 3
1College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China 2State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China 3Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
关键词:
碳氮磷含量化学计量比亚热带林木幼苗
Keywords:
C N and P content stoichiometric ratio subtropics tree see
分类号:
S718.554.2
DOI:
10.3724/SP.J.1145.2016.09004
摘要:
以亚热带区域4种主要森林植物杉木(Cunninghamia lanceolata)、马尾松(Pinus massoniana)、木荷(Schima superba)、米槠(Castanopsis carlesii)幼苗为研究对象,分别测定其不同器官碳(C)、氮(N)、磷(P)含量,并计算其化学计量比. 结果表明:(1)针叶树种C、N含量以及C/P、N/P高于阔叶树种,P含量及C/N则低于阔叶树种. (2)杉木叶片N、P含量及茎P含量高于马尾松,但各器官的C/N与C/P低于马尾松;米槠根N含量、C/P、N/P高于木荷. (3)4种林木幼苗的C、N含量及C/P、N/P均以叶为最高,根的C、N含量为最低,茎的C/P和N/P为最低;P含量以茎为最高,叶为最低;C/N以根为最高,叶为最低. 本研究结果可为我国湿润亚热带区域森林植物苗木培育、幼林养分管理及人工造林时立地选择等提供参考价值. (表3 参29)
Abstract:
This study aimed to explore the stoichiometric characteristics of different plant organs of subtropical plants. The C, N, and P contents in tree seedlings of four dominant forests (i.e. Cunninghamia lanceolata, Pinus massoniana, Schima superba, and Castanopsis carlesii, respectively) were measured in different organs, and C, N, and P stoichiometric ratios were calculated. (1) C and N contents, as well as C/P and N/P ratios in coniferous forests, were higher than those in broad-leaved forests, while the P content and C/N ratio followed the opposite trend. (2) Leaf N content, as well as leaf and stem P content in C. lanceolata forests were higher than those in P. massoniana forests, while the C/N and C/P ratios in each organ of P. massoniana forests were higher than those of C. lanceolata forests. Root N content, C/P ratio, and N/P ratio of C. carlesii were higher than those of S. superba. (3) In general, C and N contents, as well as C/P and N/P ratios in the leaf were the highest; the stem contained the highest P content, whereas the leaf contained the lowest P content; the C/N ratio in the root was the highest, while that in the leaf was the lowest. These results reveal the C, N, and P stoichiometry of four tree seedlings in a subtropical moist area, providing a valuable reference for the site selection of artificial afforestation.

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更新日期/Last Update: 2017-04-25