Results 11 to 20 of about 1,002 (181)

Tracking lake drainage events and drained lake basin vegetation dynamics across the Arctic [PDF]

Nature Communications, 2023
Widespread lake drainage can lead to large-scale drying in Arctic lake-rich areas, affecting hydrology, ecosystems and permafrost carbon dynamics. To date, the spatio-temporal distribution, driving factors, and post-drainage dynamics of lake drainage ...
Yating Chen, Xiao Cheng, Aobo Liu, Qingfeng Chen, Chengxin Wang   +4 more
doaj   +2 more sources

The Response of Soil Respiration to Temperature and Humidity in the Thermokarst Depression Zone of the Headwater Wetlands of Qinghai Lake [PDF]

Biology
As the climate warms, the thickening of the active layer of permafrost has led to permafrost melting and surface collapse, forming thermokarst landforms.
Yahui Mao, Kelong Chen, Wei Ji, Yanli Yang   +3 more
doaj   +2 more sources

Methane emissions from thermokarst lakes must emphasize the ice-melting impact on the Tibetan Plateau [PDF]

Nature Communications
Thermokarst lakes, serving as significant sources of methane (CH4), play a crucial role in affecting the feedback of permafrost carbon cycle to global warming.
Cuicui Mu, Pengsi Lei, Mei Mu, Chunling Zhang, Zhensong Zhou, Jinyue Song, Yunjie Jia, Chenyan Fan, Xiaoqing Peng, Guofei Zhang, Yuanhe Yang, Lei Wang, Dongfeng Li, Chunlin Song, Genxu Wang, Zhen Zhang   +15 more
doaj   +2 more sources

Accelerating thermokarst lake changes on the Qinghai–Tibetan Plateau [PDF]

Scientific Reports
As significant evidence of ice-rich permafrost degradation due to climate warming, thermokarst lake was developing and undergoing substantial changes. Thermokarst lake was an essential ecosystem component, which significantly impacted the global carbon ...
Guanghao Zhou, Wenhui Liu, Changwei Xie, Xianteng Song, Qi Zhang, Qingpeng Li, Guangyue Liu, Qing Li, Bingnan Luo   +8 more
doaj   +2 more sources

Abrupt permafrost thaw accelerates carbon dioxide and methane release at a tussock tundra site

Arctic, Antarctic, and Alpine Research, 2022
Abrupt thaw could cause permafrost ecosystems to release more carbon than is predicted from gradual thaw alone. However, thermokarst feature mapping is limited in scope, and observed responses of carbon fluxes to abrupt thaw are variable.
Heidi Rodenhizer, Fay Belshe, Gerardo Celis, Justin Ledman, Marguerite Mauritz, Scott Goetz, Temuulen Sankey, Edward A.G. Schuur   +7 more
doaj   +1 more source

Research Progress on Effects of Thermokarst Lakes on Soil Carbon and Microbial Community

Shuitu baochi tongbao, 2022
[Objective] The impacts of thermokarst lakes formed by rapid thawing and collapsing of permafrost on soil carbon and microorganisms were studied in order to provide a reference for the study of ecological environment and greenhouse gas emissions in such ...
Zhao Yunduo, Hu Xia, Yang Zhiguang, Pan Pengyu   +3 more
doaj   +1 more source

Onshore Thermokarst Primes Subsea Permafrost Degradation [PDF]

Geophysical Research Letters, 2021
Abstract The response of permafrost to marine submergence can vary between ice‐rich late Pleistocene deposits and the thermokarst basins that thawed out during the Holocene. We hypothesize that inundated Alases offshore thaw faster than submerged Yedoma. To test this hypothesis, we estimated depths to the top of ice‐bearing permafrost
Angelopoulos, Michael, Overduin, Pier P., Jenrich, Maren, Nitze, Ingmar, Günther, Frank, Strauss, Jens, Westermann, Sebastian, Schirrmeister, Lutz, Kholodov, Alexander, Krautblatter, Michael, Grigoriev, Mikhail N., Grosse, Guido   +11 more
openaire   +6 more sources

A fully automatic framework for sub-pixel mapping of thermokarst lakes using Sentinel-2 images

Science of Remote Sensing, 2023
Mapping and monitoring thermokarst lakes are crucial to understanding the impact of climate change on permafrost regions and quantifying permafrost-related carbon emissions. Several automatic methods based on remote sensing images have been developed for
Yuanyuan Qin, Chengyuan Zhang, Ping Lu
doaj   +1 more source

Thermokarst Lake Susceptibility Assessment Induced by Permafrost Degradation in the Qinghai–Tibet Plateau Using Machine Learning Methods

Remote Sensing, 2023
The rapidly warming climate on the Qinghai–Tibet Plateau (QTP) leads to permafrost degradation, and the thawing of ice-rich permafrost induces land subsidence to facilitate the development of thermokarst lakes.
Rui Wang, Lanlan Guo, Yuting Yang, Hao Zheng, Lianyou Liu, Hong Jia, Baijian Diao, Jifu Liu   +7 more
doaj   +1 more source

Panarctic lakes exerted a small positive feedback on early Holocene warming due to deglacial release of methane

Communications Earth & Environment, 2023
Climate-driven permafrost thaw can release ancient carbon to the atmosphere, begetting further warming in a positive feedback loop. Polar ice core data and young radiocarbon ages of dissolved methane in thermokarst lakes have challenged the importance of
L. S. Brosius, K. M. Walter Anthony, C. C. Treat, M. C. Jones, M. Dyonisius, G. Grosse   +5 more
doaj   +1 more source