Homogeneity of delta N-15 in needles of Masson pine (Pinus massoniana L.) was altered by air pollution

Kuang, Yuan Wen, Wen, Da Zhi, Li, Jiong, Sun, Fang Fang, Hou, En Qing, Zhou, Guo Yi, Zhang, De Qiang and Huang, Long-bin (2010) Homogeneity of delta N-15 in needles of Masson pine (Pinus massoniana L.) was altered by air pollution. Environmental Pollution, 158 5: 1963-1967. doi:10.1016/j.envpol.2009.10.028


Author Kuang, Yuan Wen
Wen, Da Zhi
Li, Jiong
Sun, Fang Fang
Hou, En Qing
Zhou, Guo Yi
Zhang, De Qiang
Huang, Long-bin
Title Homogeneity of delta N-15 in needles of Masson pine (Pinus massoniana L.) was altered by air pollution
Formatted title
Homogeneity of δ15N in needles of Masson pine (Pinus massoniana L.) was altered by air pollution
Journal name Environmental Pollution   Check publisher's open access policy
ISSN 0269-7491
1873-6424
Publication date 2010-05
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.envpol.2009.10.028
Volume 158
Issue 5
Start page 1963
End page 1967
Total pages 5
Place of publication Oxford, United Kingdom
Publisher Pergamon
Collection year 2011
Language eng
Subject 09 Engineering
Formatted abstract
The present study investigated the changes of δ15N values in the tip, middle and base section (divided by the proportion to needle length) of current- and previous-year needles of Masson pine (Pinus massoniana L.) from two declining forest stands suffering from air pollution, in comparison with one healthy stand. At the healthy stand, δ15N in the three sections of both current- and previous-year needles were found evenly distributed, while at the polluted stands, δ15N values in the needles were revealed significantly different from the tip to the base sections. The results implied that the distribution of δ15N among different parts or sections in foliages was not always homogeneous and could be affected by air pollution. We suggested that the difference of δ15N values among pine needle sections should be reconsidered and should not be primarily ignored when the needle δ15N values were used to assess plant responses to air pollution. Values of δ15N in needles of Masson pine (Pinus massoniana L.) were uneven and affected by air pollution.
© 2009 Elsevier Ltd. All rights reserved.

Keyword Air pollution
Delta N-15
Needle section
Nitrogen deposition
Pinus massoniana
Nitrogen isotope ratios
N-15 natural-abundance
Subtropical forests
Inorganic nitrogen
Soil-nitrogen
South China
Deposition
Patterns
Foliar
Carbon
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 7 November 2009.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Mined Land Rehabilitation Publications
Official 2011 Collection
Sustainable Minerals Institute Publications
 
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Created: Sun, 30 May 2010, 00:05:57 EST