|Table of Contents|

Carbon, nitrogen, and phosphorus contents in four tree seedlings of subtropical plants and their stoichiometric ratio characteristics(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2017年第2期
Page:
379-383
Research Field:
Communications
Publishing date:
2017-04-25

Info

Title:
Carbon, nitrogen, and phosphorus contents in four tree seedlings of subtropical plants and their stoichiometric ratio characteristics
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
Keywords:
C N and P content stoichiometric ratio subtropics tree see
CLC:
S718.554.2
PACS:
DOI:
10.3724/SP.J.1145.2016.09004
DocumentCode:

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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Last Update: 2017-04-25