气候变化领域集成服务门户(CCPortal): Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat

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DOI	10.1007/s10533-019-00632-y
	Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat
	Girkin N.T.; Dhandapani S.; Evers S.; Ostle N.; Turner B.L.; Sjögersten S.
发表日期	2020
ISSN	1682563
卷号	147 期号:1
英文摘要	Tropical peatlands are a significant carbon store and contribute to global carbon dioxide (CO2) and methane (CH4) emissions. Tropical peatlands are threatened by both land use and climate change, including the alteration of regional precipitation patterns, and the 3–4 °C predicted warming by 2100. Plant communities in tropical peatlands can regulate greenhouse gas (GHG) fluxes through labile carbon inputs, but the extent to which these inputs regulate the temperature response of CO2 and CH4 production in tropical peat remains unclear. We conducted an anoxic incubation experiment using three peat types of contrasting botanical origin to assess how carbon addition affects the temperature response (Q10) of CO2 and CH4 production. Peats from forested peatlands in Panama and Malaysia, and a converted oil palm and pineapple intercropping system in Malaysia, differed significantly in redox potential, total carbon and carbon: nitrogen ratio. The production of CO2 and CH4 varied significantly among peat types and increased with increasing temperature, with Q10s for both gases of 1.4. Carbon addition further increased gas fluxes, but did not influence the Q10 for CO2 or CH4 production or significantly affect the Q10 of either gas. These findings demonstrate that the production of CO2 and CH4 in tropical peat is sensitive to warming and varies among peat types, but that the effect of root inputs in altering Q10 appears to be limited. © 2019, The Author(s).
英文关键词	Carbon dioxide; Land use change; Methane; Root exudates; Temperature sensitivity; Tropical peat
学科领域	carbon cycle; carbon dioxide; greenhouse gas; intercropping; land use; methane; peatland; soil emission; tropical region; Malaysia; Panama [Central America]; Ananas comosus; Elaeis
语种	英语
scopus关键词	carbon cycle; carbon dioxide; greenhouse gas; intercropping; land use; methane; peatland; soil emission; tropical region; Malaysia; Panama [Central America]; Ananas comosus; Elaeis
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/120394
作者单位	School of Biosciences, University of Nottingham, Nottingham, LE12 5RD, United Kingdom; School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, United Kingdom; TROCARI (Tropical Catchment Research Initiative), Kuala Lumpur, Malaysia; Crops for the Future, Semenyih, Malaysia; Lancaster Environment Centre, University of Lancaster, Lancashire, LA1 4YQ, United Kingdom; Smithsonian Tropical Research Institute, Apartado, Balboa, Ancon 0843-03092, Panama
推荐引用方式 GB/T 7714	Girkin N.T.,Dhandapani S.,Evers S.,et al. Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat[J],2020,147(1).
APA	Girkin N.T.,Dhandapani S.,Evers S.,Ostle N.,Turner B.L.,&Sjögersten S..(2020).Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat.Biogeochemistry,147(1).
MLA	Girkin N.T.,et al."Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat".Biogeochemistry 147.1(2020).