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

doi:10.3897/phytokeys.86.13532

	Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes
	Song, Xiaoli 1,2; Zhu, Jianxing ; He, Nianpeng ; Huang, Jianhui1 ; Tian, Jing ; Zhao, Xiang 2; Liu, Yuan ; Wang, Changhui 1
	2017
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	7
摘要	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 RC value (because of pulse effects) ranged from 16.53 to 19.33 mu g C g(soil)(-1) h(-1), observed 10 min after rewetting. The maximum RN varied from 22.86 to 40.87 mu g N g(soil)(-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.
学科领域	Plant Sciences
DOI	10.3897/phytokeys.86.13532
收录类别	SCI
语种	英语
WOS关键词	TEMPERATURE SENSITIVITY ; BIOLOGICAL STOICHIOMETRY ; PRECIPITATION PULSES ; N MINERALIZATION ; WATER PULSES ; PLANT ; RESPIRATION ; GRASSLAND ; ECOSYSTEM ; DECOMPOSITION
WOS记录号	WOS:000411804800003
出版者	NATURE PORTFOLIO
文献子类	Article
出版地	BERLIN
资助机构	Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470506, 41571130043, 31570471] ; program of Youth Innovation Research Team Project [LENOM2016Q0005]
作者邮箱	zhujianxing2008@yeah.net ; wangch@ibcas.ac.cn
作品OA属性	Green Published, gold, Green Submitted
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22318
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Shanxi Agr Univ, Coll Anim Sci & Vet Med, Taigu 030801, Peoples R China
推荐引用方式 GB/T 7714	Song, Xiaoli,Zhu, Jianxing,He, Nianpeng,et al. Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes[J]. SCIENTIFIC REPORTS,2017,7.
APA	Song, Xiaoli.,Zhu, Jianxing.,He, Nianpeng.,Huang, Jianhui.,Tian, Jing.,...&Wang, Changhui.(2017).Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes.SCIENTIFIC REPORTS,7.
MLA	Song, Xiaoli,et al."Asynchronous pulse responses of soil carbon and nitrogen mineralization to rewetting events at a short-term: Regulation by microbes".SCIENTIFIC REPORTS 7(2017).

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