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Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China

Decomposition of soil organic matter (SOM) is sensitive to vegetation and climate change. Here, we investigated the influence of changes in forest types on the mineralization of soil carbon (C) and nitrogen (N), and their temperature sensitivity (Q(10)) and coupling relationships by using a laborato...

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Autores principales: Quan, Quan, Wang, Changhui, He, Nianpeng, Zhang, Zhen, Wen, Xuefa, Su, Hongxin, Wang, Qing, Xue, Jingyue
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4200403/
https://www.ncbi.nlm.nih.gov/pubmed/25322802
http://dx.doi.org/10.1038/srep06584
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author Quan, Quan
Wang, Changhui
He, Nianpeng
Zhang, Zhen
Wen, Xuefa
Su, Hongxin
Wang, Qing
Xue, Jingyue
author_facet Quan, Quan
Wang, Changhui
He, Nianpeng
Zhang, Zhen
Wen, Xuefa
Su, Hongxin
Wang, Qing
Xue, Jingyue
author_sort Quan, Quan
collection PubMed
description Decomposition of soil organic matter (SOM) is sensitive to vegetation and climate change. Here, we investigated the influence of changes in forest types on the mineralization of soil carbon (C) and nitrogen (N), and their temperature sensitivity (Q(10)) and coupling relationships by using a laboratory soil incubation experiments. We sampled soils from four forest types, namely, a primary Quercus liaotungensis forest (QL), Larix principis-rupprechtii plantation (LP), Pinus tabulaeformis plantation (PT), and secondary shrub forest (SS) in temperate northern China. The results showed that soil C and N mineralization differed significantly among forest types. Soil C and N mineralization were closely coupled in all plots, and C:N ratios of mineralized SOM ranged from 2.54 to 4.12. Forest type significantly influenced the Q(10) values of soil C and N mineralization. The activation energy (E(a)) of soil C and N mineralization was negatively related to the SOM quality index in all forest types. The reverse relationships suggested that the carbon quality-temperature (CQT) hypothesis was simultaneously applicable to soil C and N mineralization. Our findings show that the coupled relationships of soil C and N mineralization can be affected by vegetation change.
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spelling pubmed-42004032014-10-21 Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China Quan, Quan Wang, Changhui He, Nianpeng Zhang, Zhen Wen, Xuefa Su, Hongxin Wang, Qing Xue, Jingyue Sci Rep Article Decomposition of soil organic matter (SOM) is sensitive to vegetation and climate change. Here, we investigated the influence of changes in forest types on the mineralization of soil carbon (C) and nitrogen (N), and their temperature sensitivity (Q(10)) and coupling relationships by using a laboratory soil incubation experiments. We sampled soils from four forest types, namely, a primary Quercus liaotungensis forest (QL), Larix principis-rupprechtii plantation (LP), Pinus tabulaeformis plantation (PT), and secondary shrub forest (SS) in temperate northern China. The results showed that soil C and N mineralization differed significantly among forest types. Soil C and N mineralization were closely coupled in all plots, and C:N ratios of mineralized SOM ranged from 2.54 to 4.12. Forest type significantly influenced the Q(10) values of soil C and N mineralization. The activation energy (E(a)) of soil C and N mineralization was negatively related to the SOM quality index in all forest types. The reverse relationships suggested that the carbon quality-temperature (CQT) hypothesis was simultaneously applicable to soil C and N mineralization. Our findings show that the coupled relationships of soil C and N mineralization can be affected by vegetation change. Nature Publishing Group 2014-10-17 /pmc/articles/PMC4200403/ /pubmed/25322802 http://dx.doi.org/10.1038/srep06584 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/
spellingShingle Article
Quan, Quan
Wang, Changhui
He, Nianpeng
Zhang, Zhen
Wen, Xuefa
Su, Hongxin
Wang, Qing
Xue, Jingyue
Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title_full Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title_fullStr Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title_full_unstemmed Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title_short Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China
title_sort forest type affects the coupled relationships of soil c and n mineralization in the temperate forests of northern china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4200403/
https://www.ncbi.nlm.nih.gov/pubmed/25322802
http://dx.doi.org/10.1038/srep06584
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