Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes | |
| Cornelissen, Johannes H. C.; van Bodegom, Peter M.; Aerts, Rien; Callaghan, Terry V.; van Logtestijn, Richard S. P.; Alatalo, Juha; Chapin, F. Stuart; Gerdol, Renato; Gudmundsson, Jon; Gwynn-Jones, Dylan; Hartley, Anne E.; Hik, David S.; Hofgaard, Annika; Jonsdottir, Ingibjorg S.; Karlsson, Staffan; Klein, Julia A.; Laundre, Jim; Magnusson, Borgthor; Michelsen, Anders; Molau, Ulf; Onipchenko, Vladimir G.; Quested, Helen M.; Sandvik, Sylvi M.; Schmidt, Inger K.; Shaver, Gus R.; Solheim, Bjorn; Soudzilovskaia, Nadejda A.; Stenstrom, Anna; Tolvanen, Anne; Totland, Orjan; Wada, Naoya; Welker, Jeffrey M.; Zhao, Xinquan; M O L Team | |
| 2007-07-01 | |
| 发表期刊 | ECOLOGY LETTERS
 |
| 卷号 | 10期号:7页码:619-627 |
| 文章类型 | Article |
| 摘要 | Whether climate change will turn cold biomes from large long-term carbon sinks into sources is hotly debated because of the great potential for ecosystem-mediated feedbacks to global climate. Critical are the direction, magnitude and generality of climate responses of plant litter decomposition. Here, we present the first quantitative analysis of the major climate-change-related drivers of litter decomposition rates in cold northern biomes worldwide. Leaf litters collected from the predominant species in 33 global change manipulation experiments in circum-arctic-alpine ecosystems were incubated simultaneously in two contrasting arctic life zones. We demonstrate that longer-term, large-scale changes to leaf litter decomposition will be driven primarily by both direct warming effects and concomitant shifts in plant growth form composition, with a much smaller role for changes in litter quality within species. Specifically, the ongoing warming-induced expansion of shrubs with recalcitrant leaf litter across cold biomes would constitute a negative feedback to global warming. Depending on the strength of other (previously reported) positive feedbacks of shrub expansion on soil carbon turnover, this may partly counteract direct warming enhancement of litter decomposition.; Whether climate change will turn cold biomes from large long-term carbon sinks into sources is hotly debated because of the great potential for ecosystem-mediated feedbacks to global climate. Critical are the direction, magnitude and generality of climate responses of plant litter decomposition. Here, we present the first quantitative analysis of the major climate-change-related drivers of litter decomposition rates in cold northern biomes worldwide. Leaf litters collected from the predominant species in 33 global change manipulation experiments in circum-arctic-alpine ecosystems were incubated simultaneously in two contrasting arctic life zones. We demonstrate that longer-term, large-scale changes to leaf litter decomposition will be driven primarily by both direct warming effects and concomitant shifts in plant growth form composition, with a much smaller role for changes in litter quality within species. Specifically, the ongoing warming-induced expansion of shrubs with recalcitrant leaf litter across cold biomes would constitute a negative feedback to global warming. Depending on the strength of other (previously reported) positive feedbacks of shrub expansion on soil carbon turnover, this may partly counteract direct warming enhancement of litter decomposition. |
| 关键词 | Alpine Carbon Circum-arctic Global Change Growth Form Litter Turnover Mass Loss Vegetation Change |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科领域 | 生物科学 |
| 关键词[WOS] | ARCTIC TUNDRA ; PLANT COMMUNITY ; SOIL RESPIRATION ; CARBON STORAGE ; ECOSYSTEM ; TERM ; CO2 ; SENSITIVITY ; QUALITY ; ALASKA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| WOS记录号 | WOS:000247123900008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/1275 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Vrije Univ Amsterdam, Dept Syst Ecol, Fac Earth & Life Sci, Inst Ecol Sci, NL-1081 HV Amsterdam, Netherlands 2.Royal Swedish Acad Sci, Abisko Res Stn, S-98107 Abisko, Sweden 3.Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England 4.Swedish Govt Agcy Innovat Syst, VINNOVA, SE-10158 Stockholm, Sweden 5.Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK 99775 USA 6.Univ Ferrara, Dipartimento Risorse Nat & Culturali, I-44100 Ferrara, Italy 7.Agr Univ Iceland, IS-112 Reykjavik, Iceland 8.Univ Wales, Inst Biol Sci, Aberystwyth SY23 3DA, Dyfed, Wales 9.Florida Int Univ, Dept Environm Studies, Miami, FL 33199 USA 10.Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada 11.Norwegian Inst Nat Res, N-7485 Trondheim, Norway 12.Agr Univ Iceland, Dept Environm Sci, IS-112 Reykjavik, Iceland 13.Swedish Res Council, S-10378 Stockholm, Sweden 14.Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA 15.Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA 16.Iceland Inst Nat Hist, IS-5320 Reykjavik, Iceland 17.Univ Copenhagen, Inst Biol, DK-1353 Copenhagen, Denmark 18.Univ Gothenburg, Dept Plant & Environm Sci, SE-40530 Gothenburg, Sweden 19.Moscow MV Lomonosov State Univ, Fac Biol, Dept Geobot, Moscow, Russia 20.Stockholm Univ, Dept Bot, S-10691 Stockholm, Sweden 21.Agder Univ Coll, Dept Nat Sci, N-4604 Kristiansand, Norway 22.Royal Vet & Agr Univ, DK-2970 Horsholm, Denmark 23.Univ Tromso, Dept Biol, N-9037 Tromso, Norway 24.Lansstyrelsen Vastra Gotaland, SE-40340 Gothenburg, Sweden 25.Finnish Forest Res Inst, Muhos Res Unit, Muhos 91500, Finland 26.Norwegian Univ Life Sci, Dept Ecol & Nat Resource Management, N-1432 As, Norway 27.Toyama Univ, Ctr Far Eastern Studies, Toyama 9308555, Japan 28.Univ Alaska, Anchorage, AK USA 29.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Qinghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cornelissen, Johannes H. C.,van Bodegom, Peter M.,Aerts, Rien,et al. Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes[J]. ECOLOGY LETTERS,2007,10(7):619-627. |
| APA | Cornelissen, Johannes H. C..,van Bodegom, Peter M..,Aerts, Rien.,Callaghan, Terry V..,van Logtestijn, Richard S. P..,...&M O L Team.(2007).Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes.ECOLOGY LETTERS,10(7),619-627. |
| MLA | Cornelissen, Johannes H. C.,et al."Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes".ECOLOGY LETTERS 10.7(2007):619-627. |
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