Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle: A meta-analysis

doi:10.1111/gcb.14010

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	Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle: A meta-analysis
	Gao, Decai 1,2; Zhang, Lei 1,2; Liu, Jun 1,3; Peng, Bo 1,2; Fan, Zhenzhen 1,2; Dai, Weiwei 1; Jiang, Ping 1; Bai, Edith 1,4
刊名	GLOBAL CHANGE BIOLOGY
	2018-06-01
卷号	24 期号:6 页码:2377-2389
关键词	Denitrification Freeze-thaw Cycle Microbial Biomass Mineralization n Fluxes N2o Nitrification
ISSN号	1354-1013
DOI	10.1111/gcb.14010
英文摘要	Altered freeze-thaw cycle (FTC) patterns due to global climate change may affect nitrogen (N) cycling in terrestrial ecosystems. However, the general responses of soil N pools and fluxes to different FTC patterns are still poorly understood. Here, we compiled data of 1519 observations from 63 studies and conducted a meta-analysis of the responses of 17 variables involved in terrestrial N pools and fluxes to FTC. Results showed that under FTC treatment, soil NH4+, NO3-, NO3- leaching, and N2O emission significantly increased by 18.5%, 18.3%, 66.9%, and 144.9%, respectively; and soil total N (TN) and microbial biomass N (MBN) significantly decreased by 26.2% and 4.7%, respectively; while net N mineralization or nitrification rates did not change. Temperate and cropland ecosystems with relatively high soil nutrient contents were more responsive to FTC than alpine and arctic tundra ecosystems with rapid microbial acclimation. Therefore, altered FTC patterns (such as increased duration of FTC, temperature of freeze, amplitude of freeze, and frequency of FTC) due to global climate warming would enhance the release of inorganic N and the losses of N via leaching and N2O emissions. Results of this meta-analysis help better understand the responses of N cycling to FTC and the relationships between FTC patterns and N pools and N fluxes.
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000433717700014
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/106594]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
通讯作者	Bai, Edith
作者单位	1.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Fujian Agr & Forestry Univ, Coll Forestry, Forest Ecol Stable Isotope Res Ctr, Fuzhou, Fujian, Peoples R China 4.Northeast Normal Univ, Sch Geog Sci, Changchun, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Gao, Decai,Zhang, Lei,Liu, Jun,et al. Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle: A meta-analysis[J]. GLOBAL CHANGE BIOLOGY,2018,24(6):2377-2389.
APA	Gao, Decai.,Zhang, Lei.,Liu, Jun.,Peng, Bo.,Fan, Zhenzhen.,...&Bai, Edith.(2018).Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle: A meta-analysis.GLOBAL CHANGE BIOLOGY,24(6),2377-2389.
MLA	Gao, Decai,et al."Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle: A meta-analysis".GLOBAL CHANGE BIOLOGY 24.6(2018):2377-2389.