Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13609 |
Global synthesis of the temperature sensitivity of leaf litter breakdown in streams and rivers | |
Shah, Jennifer J. Follstad1,2; Kominoski, John S.3; Ardon, Marcelo4; Dodds, Walter K.5; Gessner, Mark O.6,7; Griffiths, Natalie A.8,9; Hawkins, Charles P.2; Johnson, Sherri L.10; Lecerf, Antoine11; Leroy, Carri J.12; Manning, David W. P.13; Rosemond, Amy D.14; Sinsabaugh, Robert L.15; Swan, Christopher M.16; Webster, Jackson R.17; Zeglin, Lydia H.5 | |
2017-08-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany; France |
英文摘要 | Streams and rivers are important conduits of terrestrially derived carbon (C) to atmospheric and marine reservoirs. Leaf litter breakdown rates are expected to increase as water temperatures rise in response to climate change. The magnitude of increase in breakdown rates is uncertain, given differences in litter quality and microbial and detritivore community responses to temperature, factors that can influence the apparent temperature sensitivity of breakdown and the relative proportion of C lost to the atmosphere vs. stored or transported downstream. Here, we synthesized 1025 records of litter breakdown in streams and rivers to quantify its temperature sensitivity, as measured by the activation energy (E-a, in eV). Temperature sensitivity of litter breakdown varied among twelve plant genera for which E-a could be calculated. Higher values of E-a were correlated with lower-quality litter, but these correlations were influenced by a single, N-fixing genus (Alnus). E-a values converged when genera were classified into three breakdown rate categories, potentially due to continual water availability in streams and rivers modulating the influence of leaf chemistry on breakdown. Across all data representing 85 plant genera, the E-a was 0.34 +/- 0.04 eV, or approximately half the value (0.65 eV) predicted by metabolic theory. Our results indicate that average breakdown rates may increase by 5-21% with a 1-4 C rise in water temperature, rather than a 10-45% increase expected, according to metabolic theory. Differential warming of tropical and temperate biomes could result in a similar proportional increase in breakdown rates, despite variation in E-a values for these regions (0.75 +/- 0.13 eV and 0.27 +/- 0.05 eV, respectively). The relative proportions of gaseous C loss and organic matter transport downstream should not change with rising temperature given that E-a values for breakdown mediated by microbes alone and microbes plus detritivores were similar at the global scale. |
英文关键词 | activation energy breakdown carbon cycling climate change detritivore leaf chemistry metabolic theory microbe organic matter temperature sensitivity |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404863300011 |
WOS关键词 | ORGANIC-MATTER DECOMPOSITION ; ECOENZYMATIC STOICHIOMETRY ; PLANT LITTER ; CARBON ; NUTRIENTS ; CLIMATE ; QUALITY ; TRAITS ; RATES ; SOIL |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/18274 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Utah, Dept Geog, Environm & Sustainabil Studies, Salt Lake City, UT 84112 USA; 2.Utah State Univ, Dept Watershed Sci, Logan, UT 84322 USA; 3.Florida Int Univ, Dept Biol Sci, Miami, FL 33199 USA; 4.North Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27695 USA; 5.Kansas State Univ, Dept Biol, Manhattan, KS 66506 USA; 6.Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Expt Limnol, D-16775 Stechlin, Germany; 7.Berlin Inst Technol TU Berlin, Dept Ecol, Ernst Reuter Pl 1, D-10587 Berlin, Germany; 8.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA; 9.Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA; 10.US Forest Serv, Pacific Northwest Res Stn, Corvallis, OR 97331 USA; 11.Univ Toulouse, UPS, INP, CNRS,EcoLab Lab Ecol Fonctionnelle & Environm, F-31062 Toulouse, France; 12.Evergreen State Coll, Environm Studies Program, Olympia, WA 98505 USA; 13.Ohio State Univ, Sch Environm & Nat Resources, Columbus, OH 43210 USA; 14.Univ Georgia, Odum Sch Ecol, Athens, GA 30602 USA; 15.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; 16.Univ Maryland Baltimore Cty, Dept Geog & Environm Syst, Baltimore, MD 21250 USA; 17.Virginia Polytech Inst & State Univ, Dept Biol Sci, Blacksburg, VA 24061 USA |
推荐引用方式 GB/T 7714 | Shah, Jennifer J. Follstad,Kominoski, John S.,Ardon, Marcelo,et al. Global synthesis of the temperature sensitivity of leaf litter breakdown in streams and rivers[J]. GLOBAL CHANGE BIOLOGY,2017,23(8). |
APA | Shah, Jennifer J. Follstad.,Kominoski, John S..,Ardon, Marcelo.,Dodds, Walter K..,Gessner, Mark O..,...&Zeglin, Lydia H..(2017).Global synthesis of the temperature sensitivity of leaf litter breakdown in streams and rivers.GLOBAL CHANGE BIOLOGY,23(8). |
MLA | Shah, Jennifer J. Follstad,et al."Global synthesis of the temperature sensitivity of leaf litter breakdown in streams and rivers".GLOBAL CHANGE BIOLOGY 23.8(2017). |
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