Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes

Abstract Rewetting after precipitation events plays an important role in regulating soil carbon (C) and nitrogen (N) turnover processes in arid and semiarid ecosystems. Here, we conducted a 48-h rewetting simulation experiment with measurements of soil C and N mineralization rates (R C and R N, resp...

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Autores principales:	Xiaoli Song, Jianxing Zhu, Nianpeng He, Jianhui Huang, Jing Tian, Xiang Zhao, Yuan Liu, Changhui Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1b0c4305eba401e9e761ee3c3a88b1b
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spelling	oai:doaj.org-article:e1b0c4305eba401e9e761ee3c3a88b1b2021-12-02T12:31:48ZAsynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes10.1038/s41598-017-07744-12045-2322https://doaj.org/article/e1b0c4305eba401e9e761ee3c3a88b1b2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07744-1https://doaj.org/toc/2045-2322Abstract Rewetting after precipitation events plays an important role in regulating soil carbon (C) and nitrogen (N) turnover processes in arid and semiarid ecosystems. Here, we conducted a 48-h rewetting simulation experiment with measurements of soil C and N mineralization rates (R C and R N, respectively) and microbial biomass N (MBN) at high temporal resolution to explore the pulse responses of R C and R N. R C and R N responded strongly and rapidly to rewetting over the short term. The maximum R C value (because of pulse effects) ranged from 16.53 to 19.33 µg C gsoil −1 h−1, observed 10 min after rewetting. The maximum R N varied from 22.86 to 40.87 µg N gsoil −1 h−1, appearing 5–6 h after rewetting. The responses of soil microbial growth to rewetting were rapid, and the maximum MBN was observed 2–3 h after rewetting. Unexpectedly, there was no correlation between R C, R N, and MBN during the process of rewetting, and R C and R N were uncoupled. In sum, the pulse responses of R C, R N, and microbial growth to simulated rewetting were rapid, strong, and asynchronous, which offers insights into the different responses of microbes to rewetting and mechanisms behind microbes.Xiaoli SongJianxing ZhuNianpeng HeJianhui HuangJing TianXiang ZhaoYuan LiuChanghui WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaoli Song Jianxing Zhu Nianpeng He Jianhui Huang Jing Tian Xiang Zhao Yuan Liu Changhui Wang Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
description	Abstract Rewetting after precipitation events plays an important role in regulating soil carbon (C) and nitrogen (N) turnover processes in arid and semiarid ecosystems. Here, we conducted a 48-h rewetting simulation experiment with measurements of soil C and N mineralization rates (R C and R N, respectively) and microbial biomass N (MBN) at high temporal resolution to explore the pulse responses of R C and R N. R C and R N responded strongly and rapidly to rewetting over the short term. The maximum R C value (because of pulse effects) ranged from 16.53 to 19.33 µg C gsoil −1 h−1, observed 10 min after rewetting. The maximum R N varied from 22.86 to 40.87 µg N gsoil −1 h−1, appearing 5–6 h after rewetting. The responses of soil microbial growth to rewetting were rapid, and the maximum MBN was observed 2–3 h after rewetting. Unexpectedly, there was no correlation between R C, R N, and MBN during the process of rewetting, and R C and R N were uncoupled. In sum, the pulse responses of R C, R N, and microbial growth to simulated rewetting were rapid, strong, and asynchronous, which offers insights into the different responses of microbes to rewetting and mechanisms behind microbes.
format	article
author	Xiaoli Song Jianxing Zhu Nianpeng He Jianhui Huang Jing Tian Xiang Zhao Yuan Liu Changhui Wang
author_facet	Xiaoli Song Jianxing Zhu Nianpeng He Jianhui Huang Jing Tian Xiang Zhao Yuan Liu Changhui Wang
author_sort	Xiaoli Song
title	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
title_short	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
title_full	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
title_fullStr	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
title_full_unstemmed	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
title_sort	asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: regulation by microbes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e1b0c4305eba401e9e761ee3c3a88b1b
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Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes

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