Plant community functional composition and diversity drive fine-scale variability in carbon cycling in the tundra
作者： Pekka Niittynen , Julia Kemppinen , Anna-Maria Virkkala , Konsta Happonen , Miska Luoto
DOI: 10.1101/865899
关键词:
摘要: We investigated how plant functional traits influence fine-scale patterns of tundra carbon cycling, and cycling responds to climate warming. built a hierarchical model that included abiotic conditions (summer air winter soil temperatures, resources), community composition diversity (plant size leaf economics), (above-ground organic stocks, photosynthetic respiratory fluxes). also simulated warming effects on the peak-season CO2 budget. Plant was strongest predictor for most variables. Communities larger plants were associated with fluxes above-ground stocks. fast economics had higher rates photosynthesis respiration, but lower Leaf economic increased fluxes, while stock. Simulations suggested warmer summer temperatures increase accelerate economics, size. Both changes would enhance uptake during peak season. show act as mediators between cycling. Our study firmly links trait communities ecosystem functions in tundra.
sci-hub.st 参考文章(110)
Sarah E. Hobbie, Temperature and plant species control over litter decomposition in Alaskan tundra Ecological Monographs. ,vol. 66, pp. 503- 522 ,(1996) , 10.2307/2963492
Sonia Nobrega, Paul Grogan, Deeper Snow Enhances Winter Respiration from Both Plant-associated and Bulk Soil Carbon Pools in Birch Hummock Tundra Ecosystems. ,vol. 10, pp. 419- 431 ,(2007) , 10.1007/S10021-007-9033-Z
Jennie DeMarco, Michelle C. Mack, M. Syndonia Bret-Harte, Effects of arctic shrub expansion on biophysical vs. biogeochemical drivers of litter decomposition Ecology. ,vol. 95, pp. 1861- 1875 ,(2014) , 10.1890/13-2221.1
Jennie DeMarco, Michelle C. Mack, M. Syndonia Bret-Harte, Mark Burton, Gaius R. Shaver, Long-term experimental warming and nutrient additions increase productivity in tall deciduous shrub tundra Ecosphere. ,vol. 5, pp. 1- 22 ,(2014) , 10.1890/ES13-00281.1
Markus Lange, Nico Eisenhauer, Carlos A. Sierra, Holger Bessler, Christoph Engels, Robert I. Griffiths, Perla G. Mellado-Vázquez, Ashish A. Malik, Jacques Roy, Stefan Scheu, Sibylle Steinbeiss, Bruce C. Thomson, Susan E. Trumbore, Gerd Gleixner, Plant diversity increases soil microbial activity and soil carbon storage Nature Communications. ,vol. 6, pp. 6707- 6707 ,(2015) , 10.1038/NCOMMS7707
Rafael Poyatos, Andreas Heinemeyer, Phil Ineson, Jonathan G. Evans, Helen C. Ward, Brian Huntley, Robert Baxter, Environmental and vegetation drivers of seasonal CO2 fluxes in a sub-Arctic forest–mire ecotone. Ecosystems. ,vol. 17, pp. 377- 393 ,(2014) , 10.1007/S10021-013-9728-2
J. Palmtag, G. Hugelius, N. Lashchinskiy, M. P. Tamstorf, A. Richter, B. Elberling, P. Kuhry, Storage, Landscape Distribution, and Burial History of Soil Organic Matter in Contrasting Areas of Continuous Permafrost Arctic, Antarctic, and Alpine Research. ,vol. 47, pp. 71- 88 ,(2015) , 10.1657/AAAR0014-027
Christina Biasi, Hildegard Meyer, Olga Rusalimova, Rainer Hämmerle, Christina Kaiser, Christian Baranyi, Holger Daims, Nikolaj Lashchinsky, Pavel Barsukov, Andreas Richter, Initial effects of experimental warming on carbon exchange rates, plant growth and microbial dynamics of a lichen-rich dwarf shrub tundra in Siberia Plant and Soil. ,vol. 307, pp. 191- 205 ,(2008) , 10.1007/S11104-008-9596-2
S. Eurola, H. Väre, M. Vestberg, Mycorrhiza and root-associated fungi in Spitsbergen Mycorrhiza. ,vol. 1, pp. 93- 104 ,(1992) , 10.1007/BF00203256
G. R. SHAVER, L. E. STREET, E. B. RASTETTER, M. T. VAN WIJK, M. WILLIAMS, Functional convergence in regulation of net CO2 flux in heterogeneous tundra landscapes in Alaska and Sweden Journal of Ecology. ,vol. 95, pp. 802- 817 ,(2007) , 10.1111/J.1365-2745.2007.01259.X