气候变化领域集成服务门户(CCPortal): Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming

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DOI	10.1111/ele.13209
	Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming
	Fernandez C.W.; Heckman K.; Kolka R.; Kennedy P.G.
发表日期	2019
ISSN	1461023X
卷号	22 期号:3
英文摘要	Despite being a significant input into soil carbon pools of many high-latitude ecosystems, little is known about the effects of climate change on the turnover of mycorrhizal fungal necromass. Here, we present results from the first experiment examining the effects of climate change on the long-term decomposition of mycorrhizal necromass, utilising the Spruce and Peatland Response Under Changing Environments (SPRUCE) experiment. Warming significantly increased necromass decomposition rates but was strongest in normally submerged microsites where warming caused water table drawdown. Necromass chemistry exerted the strongest control on the decomposition, with initial nitrogen content strongly predicting early decay rates (3 months) and initial melanin content determining mass remaining after 2 years. Collectively, our results suggest that as global temperatures rise, variation in species biochemical traits as well as microsites where mycorrhizal necromass is deposited will determine how these important inputs contribute to the belowground storage of carbon in boreal peatlands. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Bog microtopography; carbon cycling; decomposition; microbial residues; nitrogen cycling
语种	英语
scopus关键词	Picea; melanin; carbon cycle; climate change; ecosystem; mycorrhiza; soil; Carbon Cycle; Climate Change; Ecosystem; Melanins; Mycorrhizae; Soil
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121136
作者单位	Department of Plant & Microbial Biology, University of Minnesota St. PaulMN, United States; USDA Forest Service Northern Research Station, Houghton, MI, United States; USDA Forest Service Northern Research Station, Grand RapidsMN, United States; Department of Ecology, Evolution, and Behavior St. PaulMN, United States
推荐引用方式 GB/T 7714	Fernandez C.W.,Heckman K.,Kolka R.,et al. Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming[J],2019,22(3).
APA	Fernandez C.W.,Heckman K.,Kolka R.,&Kennedy P.G..(2019).Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming.Ecology Letters,22(3).
MLA	Fernandez C.W.,et al."Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming".Ecology Letters 22.3(2019).