Zobrazeno 1 - 10
of 82
pro vyhledávání: '"David Olefeldt"'
Autor:
Guibiao Yang, Zhihu Zheng, Benjamin W. Abbott, David Olefeldt, Christian Knoblauch, Yutong Song, Luyao Kang, Shuqi Qin, Yunfeng Peng, Yuanhe Yang
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Understanding methane (CH4) emission from thermokarst lakes is crucial for predicting the impacts of abrupt thaw on the permafrost carbon-climate feedback. However, observational evidence, especially from high-altitude permafrost regions, is
Externí odkaz:
https://doaj.org/article/f0d5208d96cf4cfe904021a1f5fc7e8f
Autor:
Benjamin W. Abbott, Michael Brown, Joanna C. Carey, Jessica Ernakovich, Jennifer M. Frederick, Laodong Guo, Gustaf Hugelius, Raymond M. Lee, Michael M. Loranty, Robie Macdonald, Paul J. Mann, Susan M. Natali, David Olefeldt, Pam Pearson, Abigail Rec, Martin Robards, Verity G. Salmon, Sayedeh Sara Sayedi, Christina Schädel, Edward A. G. Schuur, Sarah Shakil, Arial J. Shogren, Jens Strauss, Suzanne E. Tank, Brett F. Thornton, Rachael Treharne, Merritt Turetsky, Carolina Voigt, Nancy Wright, Yuanhe Yang, Jay P. Zarnetske, Qiwen Zhang, Scott Zolkos
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Climate change is an existential threat to the vast global permafrost domain. The diverse human cultures, ecological communities, and biogeochemical cycles of this tenth of the planet depend on the persistence of frozen conditions. The complexity, im
Externí odkaz:
https://doaj.org/article/bc32a1b0994a472c8d7d35e05e61c9b4
Autor:
Carolyn M. Gibson, Laura E. Chasmer, Dan K. Thompson, William L. Quinton, Mike D. Flannigan, David Olefeldt
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Future permafrost thaw may be underestimated unless effects of wildfire are considered. Here the authors show that wildfires in boreal permafrost peatlands influence soil temperature and seasonal thaw depth for several decades, and increase the rate
Externí odkaz:
https://doaj.org/article/017d51f8e2d047aa87cc65973503ccd3
Publikováno v:
Fire, Vol 3, Iss 3, p 53 (2020)
Wildfires are a common disturbance in boreal regions and have the potential to affect the waterborne export of organic matter and nutrients from burned catchments. To understand the effect of fire on shallow groundwater chemistry in a forested peatla
Externí odkaz:
https://doaj.org/article/ce904239b1174b8d9c08b6addb2c5aec
Autor:
Heather Kropp, Michael M Loranty, Susan M Natali, Alexander L Kholodov, Adrian V Rocha, Isla Myers-Smith, Benjamin W Abbot, Jakob Abermann, Elena Blanc-Betes, Daan Blok, Gesche Blume-Werry, Julia Boike, Amy L Breen, Sean M P Cahoon, Casper T Christiansen, Thomas A Douglas, Howard E Epstein, Gerald V Frost, Mathias Goeckede, Toke T Høye, Steven D Mamet, Jonathan A O’Donnell, David Olefeldt, Gareth K Phoenix, Verity G Salmon, A Britta K Sannel, Sharon L Smith, Oliver Sonnentag, Lydia Smith Vaughn, Mathew Williams, Bo Elberling, Laura Gough, Jan Hjort, Peter M Lafleur, Eugenie S Euskirchen, Monique MPD Heijmans, Elyn R Humphreys, Hiroki Iwata, Benjamin M Jones, M Torre Jorgenson, Inge Grünberg, Yongwon Kim, James Laundre, Marguerite Mauritz, Anders Michelsen, Gabriela Schaepman-Strub, Ken D Tape, Masahito Ueyama, Bang-Yong Lee, Kirsty Langley, Magnus Lund
Publikováno v:
Environmental Research Letters, Vol 16, Iss 1, p 015001 (2020)
Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, the
Externí odkaz:
https://doaj.org/article/09dabc083d7d44d8ba9ad42705c4efdc
Autor:
Pearl Mzobe, Martin Berggren, Petter Pilesjö, Erik Lundin, David Olefeldt, Nigel T Roulet, Andreas Persson
Publikováno v:
PLoS ONE, Vol 13, Iss 7, p e0199608 (2018)
Climate change projections show that temperature and precipitation increases can alter the exchange of greenhouse gases between the atmosphere and high latitude landscapes, including their freshwaters. Dissolved organic carbon (DOC) plays an importan
Externí odkaz:
https://doaj.org/article/d833e3ec407d4c12ad904b6304ac98bf
Publikováno v:
Environmental Research Letters, Vol 14, Iss 12, p 125001 (2019)
Wildfire in boreal permafrost peatlands causes a thickening and warming of the seasonally thawed active layer, exposing large amounts of soil carbon to microbial processes and potential release as greenhouse gases. In this study, conducted in the dis
Externí odkaz:
https://doaj.org/article/1fe64798d25642f2937a8eb8f6d2bde5
Autor:
Nathan Torbick, Andreas Persson, David Olefeldt, Steve Frolking, William Salas, Stephen Hagen, Patrick Crill, Changsheng Li
Publikováno v:
Remote Sensing, Vol 4, Iss 7, Pp 1974-1994 (2012)
Monitoring high latitude wetlands is required to understand feedbacks between terrestrial carbon pools and climate change. Hydrological variability is a key factor driving biogeochemical processes in these ecosystems and effective assessment tools ar
Externí odkaz:
https://doaj.org/article/f027215e8908401ea906ca83ebdc4ab7
Autor:
Cristian Estop-Aragonés, Claudia I Czimczik, Liam Heffernan, Carolyn Gibson, Jennifer C Walker, Xiaomei Xu, David Olefeldt
Publikováno v:
Environmental Research Letters, Vol 13, Iss 8, p 085002 (2018)
Permafrost peatlands store globally significant amounts of soil organic carbon (SOC) that may be vulnerable to climate change. Permafrost thaw exposes deeper, older SOC to microbial activity, but SOC vulnerability to mineralization and release as car
Externí odkaz:
https://doaj.org/article/55c86612053845e39db0de3b98a6d41f
Autor:
Benjamin W Abbott, Jeremy B Jones, Edward A G Schuur, F Stuart Chapin III, William B Bowden, M Syndonia Bret-Harte, Howard E Epstein, Michael D Flannigan, Tamara K Harms, Teresa N Hollingsworth, Michelle C Mack, A David McGuire, Susan M Natali, Adrian V Rocha, Suzanne E Tank, Merritt R Turetsky, Jorien E Vonk, Kimberly P Wickland, George R Aiken, Heather D Alexander, Rainer M W Amon, Brian W Benscoter, Yves Bergeron, Kevin Bishop, Olivier Blarquez, Ben Bond-Lamberty, Amy L Breen, Ishi Buffam, Yihua Cai, Christopher Carcaillet, Sean K Carey, Jing M Chen, Han Y H Chen, Torben R Christensen, Lee W Cooper, J Hans C Cornelissen, William J de Groot, Thomas H DeLuca, Ellen Dorrepaal, Ned Fetcher, Jacques C Finlay, Bruce C Forbes, Nancy H F French, Sylvie Gauthier, Martin P Girardin, Scott J Goetz, Johann G Goldammer, Laura Gough, Paul Grogan, Laodong Guo, Philip E Higuera, Larry Hinzman, Feng Sheng Hu, Gustaf Hugelius, Elchin E Jafarov, Randi Jandt, Jill F Johnstone, Jan Karlsson, Eric S Kasischke, Gerhard Kattner, Ryan Kelly, Frida Keuper, George W Kling, Pirkko Kortelainen, Jari Kouki, Peter Kuhry, Hjalmar Laudon, Isabelle Laurion, Robie W Macdonald, Paul J Mann, Pertti J Martikainen, James W McClelland, Ulf Molau, Steven F Oberbauer, David Olefeldt, David Paré, Marc-André Parisien, Serge Payette, Changhui Peng, Oleg S Pokrovsky, Edward B Rastetter, Peter A Raymond, Martha K Raynolds, Guillermo Rein, James F Reynolds, Martin Robards, Brendan M Rogers, Christina Schädel, Kevin Schaefer, Inger K Schmidt, Anatoly Shvidenko, Jasper Sky, Robert G M Spencer, Gregory Starr, Robert G Striegl, Roman Teisserenc, Lars J Tranvik, Tarmo Virtanen, Jeffrey M Welker, Sergei Zimov
Publikováno v:
Environmental Research Letters, Vol 11, Iss 3, p 034014 (2016)
As the permafrost region warms, its large organic carbon pool will be increasingly vulnerable to decomposition, combustion, and hydrologic export. Models predict that some portion of this release will be offset by increased production of Arctic and b
Externí odkaz:
https://doaj.org/article/8fff2094b4884dfeb3c1cf9fa5ca9196