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Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition

Mineral elements in plants have been strongly affected by increased atmospheric carbon dioxide (CO(2)) concentrations and nitrogen (N) deposition due to human activities. However, such understanding is largely limited to N and phosphorus in grassland. Using open-top chambers, we examined the concent...

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Autores principales: Huang, Wenjuan, Zhou, Guoyi, Liu, Juxiu, Zhang, Deqiang, Liu, Shizhong, Chu, Guowei, Fang, Xiong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4368730/
https://www.ncbi.nlm.nih.gov/pubmed/25794046
http://dx.doi.org/10.1371/journal.pone.0120190
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author Huang, Wenjuan
Zhou, Guoyi
Liu, Juxiu
Zhang, Deqiang
Liu, Shizhong
Chu, Guowei
Fang, Xiong
author_facet Huang, Wenjuan
Zhou, Guoyi
Liu, Juxiu
Zhang, Deqiang
Liu, Shizhong
Chu, Guowei
Fang, Xiong
author_sort Huang, Wenjuan
collection PubMed
description Mineral elements in plants have been strongly affected by increased atmospheric carbon dioxide (CO(2)) concentrations and nitrogen (N) deposition due to human activities. However, such understanding is largely limited to N and phosphorus in grassland. Using open-top chambers, we examined the concentrations of potassium (K), calcium (Ca), magnesium (Mg), aluminum (Al), copper (Cu) and manganese (Mn) in the leaves and roots of the seedlings of five subtropical tree species in response to elevated CO(2) (ca. 700 μmol CO(2) mol(-1)) and N addition (100 kg N ha(-1) yr(-1)) from 2005 to 2009. These mineral elements in the roots responded more strongly to elevated CO(2) and N addition than those in the leaves. Elevated CO(2) did not consistently decrease the concentrations of plant mineral elements, with increases in K, Al, Cu and Mn in some tree species. N addition decreased K and had no influence on Cu in the five tree species. Given the shifts in plant mineral elements, Schima superba and Castanopsis hystrix were less responsive to elevated CO(2) and N addition alone, respectively. Our results indicate that plant stoichiometry would be altered by increasing CO(2) and N deposition, and K would likely become a limiting nutrient under increasing N deposition in subtropics.
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spelling pubmed-43687302015-03-27 Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition Huang, Wenjuan Zhou, Guoyi Liu, Juxiu Zhang, Deqiang Liu, Shizhong Chu, Guowei Fang, Xiong PLoS One Research Article Mineral elements in plants have been strongly affected by increased atmospheric carbon dioxide (CO(2)) concentrations and nitrogen (N) deposition due to human activities. However, such understanding is largely limited to N and phosphorus in grassland. Using open-top chambers, we examined the concentrations of potassium (K), calcium (Ca), magnesium (Mg), aluminum (Al), copper (Cu) and manganese (Mn) in the leaves and roots of the seedlings of five subtropical tree species in response to elevated CO(2) (ca. 700 μmol CO(2) mol(-1)) and N addition (100 kg N ha(-1) yr(-1)) from 2005 to 2009. These mineral elements in the roots responded more strongly to elevated CO(2) and N addition than those in the leaves. Elevated CO(2) did not consistently decrease the concentrations of plant mineral elements, with increases in K, Al, Cu and Mn in some tree species. N addition decreased K and had no influence on Cu in the five tree species. Given the shifts in plant mineral elements, Schima superba and Castanopsis hystrix were less responsive to elevated CO(2) and N addition alone, respectively. Our results indicate that plant stoichiometry would be altered by increasing CO(2) and N deposition, and K would likely become a limiting nutrient under increasing N deposition in subtropics. Public Library of Science 2015-03-20 /pmc/articles/PMC4368730/ /pubmed/25794046 http://dx.doi.org/10.1371/journal.pone.0120190 Text en © 2015 Huang et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Huang, Wenjuan
Zhou, Guoyi
Liu, Juxiu
Zhang, Deqiang
Liu, Shizhong
Chu, Guowei
Fang, Xiong
Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title_full Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title_fullStr Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title_full_unstemmed Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title_short Mineral Elements of Subtropical Tree Seedlings in Response to Elevated Carbon Dioxide and Nitrogen Addition
title_sort mineral elements of subtropical tree seedlings in response to elevated carbon dioxide and nitrogen addition
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4368730/
https://www.ncbi.nlm.nih.gov/pubmed/25794046
http://dx.doi.org/10.1371/journal.pone.0120190
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