气候变化领域集成服务门户(CCPortal): Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest

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DOI	10.1007/s10533-020-00697-0
	Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest
	Alster C.J.; Allison S.D.; Treseder K.K.
发表日期	2020
ISSN	0168-2563
起始页码	345
结束页码	353
卷号	150 期号:3
英文摘要	The potential consequences of global warming for ecosystem carbon stocks are a major concern, particularly in high-latitude regions where soil carbon pools are especially large. Research on soil and plant carbon responses to warming are often based on short-term (' 10 year) warming experiments. Furthermore, carbon budgets from boreal forests, which contain at least 10–20% of the global soil carbon pool, have shown mixed responses to warming. In this study, we measured carbon and nitrogen budgets (i.e., soil and understory vegetation carbon and nitrogen stocks) from a 13-year greenhouse warming experiment in an Alaskan boreal forest. Although there were no differences in total aboveground + belowground pools, the carbon in the moss biomass and in the soil organic layer significantly decreased with the warming treatment (− 88.3% and − 19.1%, respectively). Declines in moss biomass carbon may be a consequence of warming-associated drying, while shifts in the soil microbial community could be responsible for the decrease in carbon in the soil organic layer. Moreover, in response to warming, aboveground plant biomass carbon tended to increase while root biomass carbon tended to decrease, so carbon allocation may shift aboveground with warming. Overall these results suggest that permafrost-free boreal forests are susceptible to soil carbon loss with warming. © 2020, Springer Nature Switzerland AG.
英文关键词	Boreal forest; Carbon budget; Field experimental warming; Global climate change; Nitrogen budget
语种	英语
scopus关键词	biomass allocation; boreal forest; carbon budget; carbon sequestration; microbial community; nitrogen cycle; permafrost; rhizosphere; soil microorganism; understory; Alaska; United States; Bryophyta
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153104
作者单位	Department of Ecology and Evolutionary Biology, University of California, Irvine, Irvine, CA 92697, United States; Department of Earth System Science, University of California, Irvine, Irvine, CA 92697, United States
推荐引用方式 GB/T 7714	Alster C.J.,Allison S.D.,Treseder K.K.. Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest[J],2020,150(3).
APA	Alster C.J.,Allison S.D.,&Treseder K.K..(2020).Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest.Biogeochemistry,150(3).
MLA	Alster C.J.,et al."Carbon budgets for soil and plants respond to long-term warming in an Alaskan boreal forest".Biogeochemistry 150.3(2020).