干旱区生态环境知识资源中心(Arid): Contrasting effects of altered precipitation regimes on soil nitrogen cycling at the global scale

Arid

DOI	10.1111/gcb.16392
	Contrasting effects of altered precipitation regimes on soil nitrogen cycling at the global scale
	Wu, Qiqian; Yue, Kai; Ma, Yuandan; Hedenec, Petr; Cai, Yanjiang; Chen, Jian; Zhang, Hui; Shao, Junjiong; Chang, Scott X.; Li, Yan
通讯作者	Shao, JJ
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2022
卷号	28 期号:22 页码:6679-6695
英文摘要	Changes in precipitation regimes can strongly affect soil nitrogen (N) cycling in terrestrial ecosystems. However, whether altered precipitation regimes may differentially affect soil N cycling between arid and humid biomes at the global scale is unclear. We conducted a meta-analysis using 1036 pairwise observations collected from 194 publications to assess the effects of increased and decreased precipitation on the input (N return from plants), storage (various forms of N in soil), and output (gaseous N emissions) of soil N in arid versus humid biomes at the global scale. We found that (1) increased precipitation significantly increased N input (+12.1%) and output (+34.9%) but decreased N storage (-13.7%), while decreased precipitation significantly decreased N input (-10.7%) and output (-34.8%) but increased N storage (+11.1%); (2) the sensitivity of soil N cycling to increased precipitation was higher in arid regions than in humid regions, while that to decreased precipitation was lower in arid regions than in humid regions; (3) the effect of altered precipitation regimes on soil N cycling was independent of precipitation type (i.e., rainfall vs. snowfall); and (4) the mean annual precipitation regulated soil N cycling in precipitation alteration experiments at the global scale. Overall, our results clearly show that the response of soil N cycling to increased versus decreased precipitation differs between arid and humid regions, indicating the uneven effect of climate change on soil N cycling between these two contrasting climate regions. This implies that ecosystem models need to consider the differential responses of N cycling to altered precipitation regimes in different climatic conditions under future global change scenarios.
英文关键词	altered precipitation global climate change mean annual precipitation meta-analysis quantitative review soil nitrogen cycling
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000843916300001
WOS关键词	AMMONIA-OXIDIZING ARCHAEA ; CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; MICROBIAL COMMUNITIES ; N-MINERALIZATION ; CARBON STORAGE ; DROUGHT ; PLANT ; RESPONSES ; DYNAMICS
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392970
推荐引用方式 GB/T 7714	Wu, Qiqian,Yue, Kai,Ma, Yuandan,et al. Contrasting effects of altered precipitation regimes on soil nitrogen cycling at the global scale[J],2022,28(22):6679-6695.
APA	Wu, Qiqian.,Yue, Kai.,Ma, Yuandan.,Hedenec, Petr.,Cai, Yanjiang.,...&Li, Yan.(2022).Contrasting effects of altered precipitation regimes on soil nitrogen cycling at the global scale.GLOBAL CHANGE BIOLOGY,28(22),6679-6695.
MLA	Wu, Qiqian,et al."Contrasting effects of altered precipitation regimes on soil nitrogen cycling at the global scale".GLOBAL CHANGE BIOLOGY 28.22(2022):6679-6695.