气候变化领域集成服务门户(CCPortal): Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau

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DOI	10.1016/j.apsoil.2021.104093
	Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau
	Peng, Fei; Zhang, Wenjuan; Lai, Chimin; Li, Chengyang; You, Quangang; Xue, Xian; Ma, Shaoixu; Tsunekawa, Atsushi
通讯作者	Peng, F (通讯作者)，320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	0929-1393
EISSN	1873-0272
卷号	166
英文摘要	The response of soil microbial decomposition of soil organic carbon (C) to temperature variation against an average warming background is of great importance to understand how climate change affects the ecosystem C cycling. In this study, a warming and step-wised stop-warming experiment was conducted to examine whether the response of soil respiration (Rs) and heterotrophic respiration (Rh) persists post-warming and to understand the underlying mechanisms. The treatment plots (10 plots) were warmed (similar to 1.5 degrees C at 10 cm soil depth) in 2017, then warming was stopped in one group (5 plots) in 2018 (WS18) and stopped in another group (the remaining 5 plots) in 2019 (WS19). Plant biomass, soil microbial biomass, and soil microbial community composition were measured from 2017 to 2019.On average, warming increased Rh by 28% in 2017. The Rh in WS18 was stilled increased by 26% in 2018, which was lower than the warming induced increase in Rh in WS19 at the same period. The Rh in WS18 showed no difference with the control and that in WS19 was higher than the control in only June in 2019. Aboveground biomass of WS18 and WS19 increased by 20% and 29%, respectively in 2017, and they were still increased by 12% and 17% in 2019 even the warming stopped one two years and one years, respectively. Belowground biomass, microbial biomass, and diversity indices showed no significant differences among treatments in 2018 or 2019. The fungal community was significantly different among WS18, W19, and the control in both 2018 and 2019. The relative abundance of Ascomycetes, which made the largest contribution to the differences in the fungal community, was negatively correlated with Rh (r = -0.4, n = 30, p < 0.05). Our results indicate a warming legacy effect on the microbial decomposition of soil organic C, resulting from the increase in plant productivity and fungal community change when warming stopped.
关键词	SOIL MICROBIAL RESPIRATION CARBON-USE EFFICIENCY TEMPERATURE SENSITIVITY BACTERIAL COMMUNITY ECOSYSTEM RESPONSES BIOMASS DECOMPOSITION RESILIENCE COMPONENTS
英文关键词	Heterotrophic respiration; Microbial community composition; Resistance and resilience; Alpine meadow; Climate warming
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:000679310400002
来源期刊	APPLIED SOIL ECOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254788
作者单位	[Peng, Fei; Zhang, Wenjuan; Lai, Chimin; Li, Chengyang; You, Quangang; Xue, Xian; Ma, Shaoixu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Peng, Fei; Ma, Shaoixu; Tsunekawa, Atsushi] Tottori Univ, Int Platform Dryland Res & Educ, Tottori, Japan; [Peng, Fei; You, Quangang; Xue, Xian] Chinese Acad Sci, Beiluhe Observat & Res Stn Frozen Soil Engn & Env, Beijing, Peoples R China; [Lai, Chimin; Li, Chengyang] Univ Chinese Acad Sci, Beijing, Peoples R China; [Tsunekawa, Atsushi] Tottori Univ, Arid Land Res Ctr, Tottori, Japan; [Zhang, Wenjuan] Lanzhou Univ Sci & Arts, Sch Tourism, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Peng, Fei,Zhang, Wenjuan,Lai, Chimin,et al. Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2021,166.
APA	Peng, Fei.,Zhang, Wenjuan.,Lai, Chimin.,Li, Chengyang.,You, Quangang.,...&Tsunekawa, Atsushi.(2021).Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau.APPLIED SOIL ECOLOGY,166.
MLA	Peng, Fei,et al."Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau".APPLIED SOIL ECOLOGY 166(2021).