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Title: Chemical and anatomical changes in Liquidambar styraciflua L. xylem after long term exposure to elevated CO2

Abstract

The anatomical and chemical characteristics of sweetgum were studied after 11 years of elevated CO2 (544 ppm, ambient at 391 ppm) exposure. Anatomically, branch xylem cells were larger for elevated CO2 trees, and the cell wall thickness was thinner. Chemically, elevated CO2 exposure did not impact the structural components of the stem wood, but non-structural components were significantly affected. Principal component analysis (PCA) was employed to detect differences between the CO2 treatments by considering numerous structural and chemical variables, as well as tree size, and data from previously published sources (for example, root biomass, production and turnover). The PCA results indicated a clear separation between trees exposed to ambient and elevated CO2 conditions. Lastly, correlation loadings plots of the PCA revealed that stem structural components, ash, Ca, Mg, total phenolics, root biomass, production and turnover were the major responses that contribute to the separation between the elevated and ambient CO2 treated trees.

Authors:
ORCiD logo [1];  [1];  [2];  [3];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Center for Renewable Carbon
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Climate Change Science Inst. and Environmental Sciences Division
  3. USDA-Forest Service, Southern Research Station, Pineville, LA (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1261416
Alternate Identifier(s):
OSTI ID: 1259359
Grant/Contract Number:  
AC05-00OR22725; 2010-34158-20930; AC05-00OR22725,
Resource Type:
Accepted Manuscript
Journal Name:
Environmental Pollution
Additional Journal Information:
Journal Volume: 198; Journal Issue: C; Journal ID: ISSN 0269-7491
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Free air CO₂ enrichment; Sweetgum; Chemical composition; Hydraulic conductivity; PCA

Citation Formats

Kim, Keonhee, Labbé, Nicole, Warren, Jeffrey M., Elder, Thomas, and Rials, Timothy G. Chemical and anatomical changes in Liquidambar styraciflua L. xylem after long term exposure to elevated CO2. United States: N. p., 2015. Web. doi:10.1016/j.envpol.2015.01.006.
Kim, Keonhee, Labbé, Nicole, Warren, Jeffrey M., Elder, Thomas, & Rials, Timothy G. Chemical and anatomical changes in Liquidambar styraciflua L. xylem after long term exposure to elevated CO2. United States. https://doi.org/10.1016/j.envpol.2015.01.006
Kim, Keonhee, Labbé, Nicole, Warren, Jeffrey M., Elder, Thomas, and Rials, Timothy G. Sat . "Chemical and anatomical changes in Liquidambar styraciflua L. xylem after long term exposure to elevated CO2". United States. https://doi.org/10.1016/j.envpol.2015.01.006. https://www.osti.gov/servlets/purl/1261416.
@article{osti_1261416,
title = {Chemical and anatomical changes in Liquidambar styraciflua L. xylem after long term exposure to elevated CO2},
author = {Kim, Keonhee and Labbé, Nicole and Warren, Jeffrey M. and Elder, Thomas and Rials, Timothy G.},
abstractNote = {The anatomical and chemical characteristics of sweetgum were studied after 11 years of elevated CO2 (544 ppm, ambient at 391 ppm) exposure. Anatomically, branch xylem cells were larger for elevated CO2 trees, and the cell wall thickness was thinner. Chemically, elevated CO2 exposure did not impact the structural components of the stem wood, but non-structural components were significantly affected. Principal component analysis (PCA) was employed to detect differences between the CO2 treatments by considering numerous structural and chemical variables, as well as tree size, and data from previously published sources (for example, root biomass, production and turnover). The PCA results indicated a clear separation between trees exposed to ambient and elevated CO2 conditions. Lastly, correlation loadings plots of the PCA revealed that stem structural components, ash, Ca, Mg, total phenolics, root biomass, production and turnover were the major responses that contribute to the separation between the elevated and ambient CO2 treated trees.},
doi = {10.1016/j.envpol.2015.01.006},
journal = {Environmental Pollution},
number = C,
volume = 198,
place = {United States},
year = {Sat Jan 17 00:00:00 EST 2015},
month = {Sat Jan 17 00:00:00 EST 2015}
}

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Cited by: 17 works
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