气候变化领域集成服务门户(CCPortal): Experimental warming accelerates positive soil priming in a temperate grassland ecosystem

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DOI	10.1038/s41467-024-45277-0
	Experimental warming accelerates positive soil priming in a temperate grassland ecosystem
	Tao, Xuanyu; Yang, Zhifeng; Feng, Jiajie; Jian, Siyang; Yang, Yunfeng; Bates, Colin T.; Wang, Gangsheng; Guo, Xue; Ning, Daliang; Kempher, Megan L.; Liu, Xiao Jun A.; Ouyang, Yang; Han, Shun; Wu, Linwei; Zeng, Yufei; Kuang, Jialiang; Zhang, Ya; Zhou, Xishu; Shi, Zheng; Qin, Wei; Wang, Jianjun; Firestone, Mary K.; Tiedje, James M.; Zhou, Jizhong
发表日期	2024
EISSN	2041-1723
起始页码	15
结束页码	1
卷号	15 期号:1
英文摘要	Unravelling biosphere feedback mechanisms is crucial for predicting the impacts of global warming. Soil priming, an effect of fresh plant-derived carbon (C) on native soil organic carbon (SOC) decomposition, is a key feedback mechanism that could release large amounts of soil C into the atmosphere. However, the impacts of climate warming on soil priming remain elusive. Here, we show that experimental warming accelerates soil priming by 12.7% in a temperate grassland. Warming alters bacterial communities, with 38% of unique active phylotypes detected under warming. The functional genes essential for soil C decomposition are also stimulated, which could be linked to priming effects. We incorporate lab-derived information into an ecosystem model showing that model parameter uncertainty can be reduced by 32-37%. Model simulations from 2010 to 2016 indicate an increase in soil C decomposition under warming, with a 9.1% rise in priming-induced CO2 emissions. If our findings can be generalized to other ecosystems over an extended period of time, soil priming could play an important role in terrestrial C cycle feedbacks and climate change. Soil priming could release large amounts of soil C into the atmosphere. Here the authors show that experimental warming boosts soil priming and CO2 emissions in grasslands potentially due to microbial changes. Model accuracy could be improved by incorporating these mechanisms.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001159189300005
来源期刊	NATURE COMMUNICATIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297222
作者单位	University of Oklahoma System; University of Oklahoma - Norman; University of Oklahoma System; University of Oklahoma - Norman; Tsinghua University; Wuhan University; Wuhan University; Chinese Academy of Sciences; Nanjing Institute of Geography & Limnology, CAS; University of California System; University of California Berkeley; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Michigan State University; University of Oklahoma System; University of Oklahoma - Norman; University of Oklahoma System; University of Oklahoma - Norman
推荐引用方式 GB/T 7714	Tao, Xuanyu,Yang, Zhifeng,Feng, Jiajie,et al. Experimental warming accelerates positive soil priming in a temperate grassland ecosystem[J],2024,15(1).
APA	Tao, Xuanyu.,Yang, Zhifeng.,Feng, Jiajie.,Jian, Siyang.,Yang, Yunfeng.,...&Zhou, Jizhong.(2024).Experimental warming accelerates positive soil priming in a temperate grassland ecosystem.NATURE COMMUNICATIONS,15(1).
MLA	Tao, Xuanyu,et al."Experimental warming accelerates positive soil priming in a temperate grassland ecosystem".NATURE COMMUNICATIONS 15.1(2024).