Influence of permafrost thaw on an extreme geologic methane seep
Sign Up to like & getrecommendations! Published in 2021 at "Permafrost and Periglacial Processes"
DOI: 10.1002/ppp.2114
Abstract: The occurrence and magnitude of natural fossil methane (CH4) emissions in the Arctic are poorly known. Emission of geologic CH4, a potent greenhouse gas, originating beneath permafrost is of particular interest due to the potential… read more here.
Keywords: permafrost; methane seep; permafrost thaw; ch4 ... See more keywords
Shifts of methanogenic communities in response to permafrost thaw results in rising methane emissions and soil property changes
Sign Up to like & getrecommendations! Published in 2018 at "Extremophiles"
DOI: 10.1007/s00792-018-1007-x
Abstract: Permafrost thaw can bring negative consequences in terms of ecosystems, resulting in permafrost collapse, waterlogging, thermokarst lake development, and species composition changes. Little is known about how permafrost thaw influences microbial community shifts and their… read more here.
Keywords: permafrost thaw; permafrost; response permafrost; methane emissions ... See more keywords
Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon.
Sign Up to like & getrecommendations! Published in 2023 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c07274
Abstract: Thaw slumps can lead to considerable carbon loss in permafrost regions, while the loss of components from two major origins, i.e., microbial and plant-derived carbon, during this process remains poorly understood. Here, we provide direct… read more here.
Keywords: permafrost thaw; carbon; loss; thaw slump ... See more keywords
Drying of tundra landscapes will limit subsidence-induced acceleration of permafrost thaw
Sign Up to like & getrecommendations! Published in 2023 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2212171120
Abstract: Significance Topography change caused by melting ice in Arctic soils has the potential to accelerate permafrost thaw and trigger abrupt and large-scale change in the Arctic. We extended a site-scale permafrost thermal hydrology model to… read more here.
Keywords: tundra landscapes; drying tundra; subsidence; permafrost thaw ... See more keywords
Emergence of steeply stratified permafrost thaw ponds changes zooplankton ecology in subarctic freshwaters
Sign Up to like & getrecommendations! Published in 2020 at "Arctic, Antarctic, and Alpine Research"
DOI: 10.1080/15230430.2020.1753412
Abstract: ABSTRACT Climate change and associated permafrost thaw are creating new shallow waterbodies in vast regions of the circumpolar Arctic. These thaw ponds are characterized by high concentrations of colored dissolved organic matter originating from the… read more here.
Keywords: zooplankton; thaw ponds; emergence steeply; permafrost thaw ... See more keywords
Methanogenic response to long-term permafrost thaw is determined by paleoenvironment
Sign Up to like & getrecommendations! Published in 2020 at "FEMS Microbiology Ecology"
DOI: 10.1093/femsec/fiaa021
Abstract: ABSTRACT Methane production in thawing permafrost can be substantial, yet often evolves after long lag phases or is even lacking. A central question is to which extent the production of methane after permafrost thaw is… read more here.
Keywords: production; long term; permafrost; permafrost thaw ... See more keywords
Foraging deeply: depth-specific plant nitrogen uptake in response to climate-induced N-release and permafrost thaw in the High Arctic.
Sign Up to like & getrecommendations! Published in 2020 at "Global change biology"
DOI: 10.1111/gcb.15306
Abstract: Warming in the Arctic accelerates top-soil decomposition and deep-soil permafrost thaw. This may lead to an increase in plant-available nutrients throughout the active layer soil and near the permafrost thaw front. For nitrogen (N) limited… read more here.
Keywords: permafrost thaw; soil; plant; high arctic ... See more keywords
Chlorovirus and myovirus diversity in permafrost thaw ponds
Sign Up to like & getrecommendations! Published in 2018 at "Aquatic Microbial Ecology"
DOI: 10.3354/ame01893
Abstract: Permafrost thaw ponds occur in high abundance across the northern landscape of Canada and are sites of intense microbial activity, resulting in carbon dioxide and methane emissions to the atmosphere. In this study, we focused… read more here.
Keywords: thaw ponds; diversity; permafrost; myovirus ... See more keywords
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5
Sign Up to like & getrecommendations! Published in 2019 at "Geoscientific Model Development"
DOI: 10.5194/gmd-12-5291-2019
Abstract: Abstract. Simulating surface inundation is particularly challenging for the high-latitude permafrost regions. Ice-rich permafrost thaw can create expanding thermokarst lakes as well as shrinking large wetlands. Such processes can have major biogeochemical implications and feedbacks… read more here.
Keywords: permafrost; ground subsidence; permafrost thaw; surface ... See more keywords