干旱区生态环境知识资源中心(Arid): Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming

Arid

DOI	10.1111/gcb.14734
	Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming
	Li, Yaoming 1,2; Lv, Wangwang 2,3; Jiang, Lili 2; Zhang, Lirong 2; Wang, Shiping 2,4; Wang, Qi 2,3; Xue, Kai 3; Li, Bowen 2,3; Liu, Peipei 2,3; Hong, Huan 2,3; Renzen, Wangmu 2,3; Wang, A.2,3; Luo, Caiyun 5,6; Zhang, Zhenhua 5,6; Dorji, Tsechoe 2,4; Tas, Neslihan 7,8; Wang, Zhezhen 9; Zhou, Huakun 5,6; Wang, Yanfen 3
通讯作者	Wang, Shiping ; Wang, Yanfen
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2019
卷号	25 期号:10 页码:3438-3449
英文摘要	Changes in labile carbon (LC) pools and microbial communities are the primary factors controlling soil heterotrophic respiration (R-h) in warming experiments. Warming is expected to initially increase R-h but studies show this increase may not be continuous or sustained. Specifically, LC and soil microbiome have been shown to contribute to the effect of extended warming on R-h. However, their relative contribution is unclear and this gap in knowledge causes considerable uncertainty in the prediction of carbon cycle feedbacks to climate change. In this study, we used a two-step incubation approach to reveal the relative contribution of LC limitation and soil microbial community responses in attenuating the effect that extended warming has on R-h. Soil samples from three Tibetan ecosystems-an alpine meadow (AM), alpine steppe (AS), and desert steppe (DS)-were exposed to a temperature gradient of 5-25 degrees C. After an initial incubation period, soils were processed in one of two methods: (a) soils were sterilized then inoculated with parent soil microbes to assess the LC limitation effects, while controlling for microbial community responses; or (b) soil microbes from the incubations were used to inoculate sterilized parent soils to assess the microbial community effects, while controlling for LC limitation. We found both LC limitation and microbial community responses led to significant declines in R-h by 37% and 30%, respectively, but their relative contributions were ecosystem specific. LC limitation alone caused a greater R-h decrease for DS soils than AMs or ASs. Our study demonstrates that soil carbon loss due to R-h in Tibetan alpine soils-especially in copiotrophic soils-will be weakened by microbial community responses under short-term warming.
英文关键词	labile carbon limitation microbial community response soil heterotrophic respiration soil incubation soil respiration acclimation
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000480041500001
WOS关键词	TEMPERATURE SENSITIVITY ; THERMAL ADAPTATION ; CLIMATE-CHANGE ; RESPIRATION ; MATTER ; BIOMASS ; FUNGI ; DECOMPOSITION ; ACCLIMATION ; RATES
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	北京林业大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216091
作者单位	1.Beijing Forestry Univ, Coll Grassland Sci, Beijing, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining, Qinghai, Peoples R China; 6.Qinghai Prov Key Lab Restorat Ecol Cold Area, Xining, Qinghai, Peoples R China; 7.Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA USA; 8.Lawrence Berkeley Natl Lab, Biosci Area, Berkeley, CA USA; 9.Univ Chicago, Med & Biol Sci Div, Chicago, IL 60637 USA
推荐引用方式 GB/T 7714	Li, Yaoming,Lv, Wangwang,Jiang, Lili,et al. Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming[J]. 北京林业大学, 中国科学院青藏高原研究所,2019,25(10):3438-3449.
APA	Li, Yaoming.,Lv, Wangwang.,Jiang, Lili.,Zhang, Lirong.,Wang, Shiping.,...&Wang, Yanfen.(2019).Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming.GLOBAL CHANGE BIOLOGY,25(10),3438-3449.
MLA	Li, Yaoming,et al."Microbial community responses reduce soil carbon loss in Tibetan alpine grasslands under short-term warming".GLOBAL CHANGE BIOLOGY 25.10(2019):3438-3449.