FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions
文献类型：期刊论文
| 作者 | Knox, Sara H.7,8; Jackson, Robert B.2,9; Poulter, Benjamin3; McNicol, Gavin7; Fluet-Chouinard, Etienne7; Zhang, Zhen10; Hugelius, Gustaf11,12; Bousquet, Philippe13; Canadell, Josep G.14; Saunois, Marielle13 |
| 刊名 | BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 100期号:12页码:2607-2632 |
| ISSN号 | 0003-0007 |
| DOI | 10.1175/BAMS-D-18-0268.1 |
| 通讯作者 | Knox, Sara H.(saraknox.knox@gmail.com) |
| 英文摘要 | This paper describes the formation of, and initial results for, a new FLUXNET coordination network for ecosystem-scale methane (CH4) measurements at 60 sites globally, organized by the Global Carbon Project in partnership with other initiatives and regional flux tower networks. The objectives of the effort are presented along with an overview of the coverage of eddy covariance (EC) CH4 flux measurements globally, initial results comparing CH4 fluxes across the sites, and future research directions and needs. Annual estimates of net CH4 fluxes across sites ranged from -0.2 +/- 0.02 g C m(-2) yr(-1) for an upland forest site to 114.9 +/- 13.4 g C m(-2) yr(-1) for an estuarine freshwater marsh, with fluxes exceeding 40 g C m(-2) yr(-1) at multiple sites. Average annual soil and air temperatures were found to be the strongest predictor of annual CH4 flux across wetland sites globally. Water table position was positively correlated with annual CH4 emissions, although only for wetland sites that were not consistently inundated throughout the year. The ratio of annual CH4 fluxes to ecosystem respiration increased significantly with mean site temperature. Uncertainties in annual CH4 estimates due to gap-filling and random errors were on average +/- 1.6 g C m(-2) yr(-1) at 95% confidence, with the relative error decreasing exponentially with increasing flux magnitude across sites. Through the analysis and synthesis of a growing EC CH4 flux database, the controls on ecosystem CH4 fluxes can be better understood, used to inform and validate Earth system models, and reconcile differences between land surface model- and atmospheric-based estimates of CH4 emissions. |
| WOS关键词 | NET ECOSYSTEM EXCHANGE ; EDDY-CORRELATION MEASUREMENTS ; COVARIANCE FLUX MEASUREMENTS ; PREDICTING CARBON-DIOXIDE ; GREENHOUSE-GAS FLUXES ; METHANE EMISSIONS ; CO2 EXCHANGE ; MICROMETEOROLOGICAL MEASUREMENTS ; TEMPERATURE-DEPENDENCE ; ENVIRONMENTAL DRIVERS |
| 资助项目 | Gordon and Betty Moore Foundation[GBMF5439] ; John Wesley Powell Center for Analysis and Synthesis of the U.S. Geological Survey ; U.S. Department of Energy's Office of Science ; NSF[1752083] ; NSF[1204263] ; NSF[1702797] ; NASA ABoVE[NNX15AT74A] ; NASA ABoVE[NNX16AF94A] ; NASA ABoVE[NNX17AC61A] ; NOAA EPP[NA16SEC4810008] ; EU Horizon 2020[629 727890] ; NERC UK[NE/P002552/1] ; AmeriFlux Management Project ; European Union - Horizon 2020 Research and Innovation Programme[730944] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | AMER METEOROLOGICAL SOC |
| WOS记录号 | WOS:000506029100022 |
| 资助机构 | Gordon and Betty Moore Foundation ; John Wesley Powell Center for Analysis and Synthesis of the U.S. Geological Survey ; U.S. Department of Energy's Office of Science ; NSF ; NASA ABoVE ; NOAA EPP ; EU Horizon 2020 ; NERC UK ; AmeriFlux Management Project ; European Union - Horizon 2020 Research and Innovation Programme |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/131554]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Knox, Sara H. |
| 作者单位 | 1.GFZ German Res Ctr Geosci, Potsdam, Germany 2.Stanford Univ, Precourt Inst Energy, Stanford, CA 94305 USA 3.NASA, Goddard Space Flight Ctr, Biospher Sci Lab, Greenbelt, MD USA 4.Osaka Prefecture Univ, Grad Sch Life & Environm Sci, Sakai, Osaka, Japan 5.US Geol Survey, Wetland & Aquat Res Ctr, Lafayette, LA USA 6.Univ Hamburg, Ctr Earth Syst Res & Sustainabil, Inst Soil Sci, Hamburg, Germany 7.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA 8.Univ British Columbia, Dept Geog, Vancouver, BC, Canada 9.Stanford Univ, Woods Inst Environm, Dept Earth Syst Sci, Stanford, CA 94305 USA 10.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA |
| 推荐引用方式 GB/T 7714 | Knox, Sara H.,Jackson, Robert B.,Poulter, Benjamin,et al. FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions[J]. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY,2019,100(12):2607-2632. |
| APA | Knox, Sara H..,Jackson, Robert B..,Poulter, Benjamin.,McNicol, Gavin.,Fluet-Chouinard, Etienne.,...&Zona, Donatella.(2019).FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions.BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY,100(12),2607-2632. |
| MLA | Knox, Sara H.,et al."FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions".BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 100.12(2019):2607-2632. |
入库方式： OAI收割
来源：地理科学与资源研究所
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