Temperature response of soil respiration largely unaltered with experimental warming

Joanna C. Carey, Jianwu Tang, Pamela H. Templer, Kevin D. Kroeger, Thomas W. Crowther, Andrew J. Burton, Jeffrey S. Dukes, Bridget Emmett, Serita D. Frey, Mary A. Heskel, Lifen Jiang, Megan B. Machmuller, Jacqueline Mohan, Anne Marie Panetta, Peter B. Reich, Sabine Reinsch, Xin Wang, Steven D. Allison, Chris Bamminger, Scott BridghamScott L. Collins, Giovanbattista de Dato, William C. Eddy, Brian J. Enquist, Marc Estiarte, John Harte, Amanda Henderson, Bart R. Johnson, Klaus Steenberg Larsen, Yiqi Luo, Sven Marhan, Jerry M. Melillo, Josep Peñuelas, Laurel Pfeifer-Meister, Christian Poll, Edward Rastetter, Andrew B. Reinmann, Lorien L. Reynolds, Inger K. Schmidt, Gaius R. Shaver, Aaron L. Strong, Vidya Suseela, Albert Tietema

Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

65 Downloads (Pure)


The respiratory release of carbon dioxide (CO2) from soil is a major yet poorly understood flux in the global carbon cycle. Climatic warming is hypothesized to increase rates of soil respiration, potentially fueling further increases in global temperatures. However, despite considerable scientific attention in recent decades, the overall response of soil respiration to anticipated climatic warming remains unclear. We synthesize the largest global dataset to date of soil respiration, moisture, and temperature measurements, totaling >3,800 observations representing 27 temperature manipulation studies, spanning nine biomes and over 2 decades of warming. Our analysis reveals no significant differences in the temperature sensitivity of soil respiration between control and warmed plots in all biomes, with the exception of deserts and boreal forests. Thus, our data provide limited evidence of acclimation of soil respiration to experimental warming in several major biome types, contrary to the results from multiple single-site studies. Moreover, across all nondesert biomes, respiration rates with and without experimental warming follow a Gaussian response, increasing with soil temperature up to a threshold of ~25 °C, above which respiration rates decrease with further increases in temperature. This consistent decrease in temperature sensitivity at higher temperatures demonstrates that rising global temperatures may result in regionally variable responses in soil respiration, with colder climates being considerably more responsive to increased ambient temperatures compared with warmer regions. Our analysis adds a unique cross-biome perspective on the temperature response of soil respiration, information critical to improving our mechanistic understanding of how soil carbon dynamics change with climatic warming.
Originele taal-2Engels
Pagina's (van-tot)13797-13802
TijdschriftProceedings of the National Academy of Sciences of the United States of America
Nummer van het tijdschrift48
Vroegere onlinedatum2016
StatusGepubliceerd - 2016


Duik in de onderzoeksthema's van 'Temperature response of soil respiration largely unaltered with experimental warming'. Samen vormen ze een unieke vingerafdruk.
  • Data compilation of soil respiration, moisture, and temperature measurements from global warming experiments from 1994-2014

    Carey, J. C. (Maker), Tang, J. (Maker), Templer, P. H. (Maker), Kroeger, K. D. (Maker), Crowther, T. W. (Maker), Burton, A. J. (Maker), Dukes, J. S. (Maker), Emmett, B. (Maker), Frey, S. D. (Maker), Heskel, M. A. (Maker), Jiang, L. (Maker), Machmuller, M. B. (Maker), Mohan, J. (Maker), Panetta, A. M. (Maker), Reich, P. B. (Maker), Wang, X. (Maker), Allison, S. D. (Maker), Bamminger, C. (Maker), Bridgham, S. D. (Maker), Collins, S. L. (Maker), de Dato, G. (Maker), Eddy, W. C. (Maker), Enquist, B. J. (Maker), Estiarte, M. (Maker), Harte, J. (Maker), Henderson, A. (Maker), Johnson, B. R. (Maker), Larsen, K. S. (Maker), Luo, Y. (Maker), Marhan, S. (Maker), Melillo, J. M. (Maker), Peñuelas, J. (Maker), Pfeifer-Meister, L. (Maker), Poll, C. (Maker), Rastetter, E. (Maker), Reinmann, A. B. (Maker), Reynolds, L. L. (Maker), Schmidt, I. K. (Maker), Shaver, G. R. (Maker), Strong, A. L. (Maker), Suseela, V. (Maker) & Tietema, A. (Maker), USGS, 2016


Citeer dit