Results 41 to 50 of about 24,566 (233)

Estimating lichen biomass in forests and peatlands of northwestern Canada in a changing climate

Arctic, Antarctic, and Alpine Research, 2022
Climate warming in the North could lead to lichen decline within critical woodland caribou habitat. We used repeat measurements of sixty-nine plots over ten years (2007–2008 and 2017–2018) to assess lichen biomass changes under a warming climate along a ...
Ruth Catherine Errington, S. Ellen Macdonald, Natalka A. Melnycky, Jagtar S. Bhatti   +3 more
doaj   +1 more source

Water Body Distributions Across Scales: A Remote Sensing Based Comparison of Three Arctic Tundra Wetlands [PDF]

, 2013
Water bodies are ubiquitous features in Arctic wetlands. Ponds, i.e., waters with a surface area smaller than 104 m2, have been recognized as hotspots of biological activity and greenhouse gas emissions but are not well inventoried.
Abnizova, Anna, Boike, Julia, Heim, Birgit, Muster, Sina   +3 more
core   +2 more sources

Assessment of the natural conditions of the territory of the Anabar region on a landscape basis [PDF]

E3S Web of Conferences
The article assesses the natural conditions of the territory of the Anabar region of the Sakha Republic on a permafrost-landscape basis for accounting by subsoil users and other economic entities in order to preserve biodiversity and develop reindeer ...
Efremova Inga
doaj   +1 more source

Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities [PDF]

, 2011
Part of Focus on Dynamics of Arctic and Sub-Arctic Vegetation Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1)
Andreu-Hayles, Laia, Blok, Daan, Boudreau, Stephane, Collier, Laura Siegwart, Elmendorf, Sarah, Epstein, Howard E., Forbes, Bruce C., Goetz, Scott, Grogan, Paul, Hallinger, Martin, Hermanutz, Luise, Hik, David S., Lantz, Trevor, Levesque, Esther, Macias-Fauria, Marc, Menard, Cecile B, Myers-Smith, Isla, Ravolainen, Virve, Rayback, Shelly A, Rixen, Christian, Ropars, Pascale, Rozema, Jelte, Sass-Klaassen, Ute, Schaepman-Strub, Gabriela, Schmidt, Niels Martin, Tape, Ken D, Trant, Andrew, Venn, Susanna, Weijers, Niels Martin, Welker, Jeffrey, Wilmking, Martin, Wipf, Sonja   +31 more
core   +3 more sources

Ground ice, organic carbon and soluble cations in tundra permafrost soils and sediments near a Laurentide ice divide in the Slave Geological Province, Northwest Territories, Canada [PDF]

The Cryosphere, 2020
The central Slave Geological Province is situated 450–650 km from the presumed spreading centre of the Keewatin Dome of the Laurentide Ice Sheet, and it differs from the western Canadian Arctic, where recent thaw-induced landscape changes in ...
R. Subedi, S. V. Kokelj, S. V. Kokelj, S. Gruber   +3 more
doaj   +1 more source

Peatlands and the carbon cycle: from local processes to global implications - a synthesis [PDF]

, 2008
Peatlands cover only 3% of the Earth's land surface but boreal and subarctic peatlands store about 15-30% of the world's soil carbon ( C) as peat. Despite their potential for large positive feedbacks to the climate system through sequestration and ...
Berendse, F., Blodau, C., Canadell, J.G., Freeman, C., Holden, J., Limpens, J., Roulet, N., Rydin, H., Schaepman-Strub, G.   +8 more
core   +4 more sources

Rapid Saline Permafrost Thaw Below a Shallow Thermokarst Lake in Arctic Alaska

Geophysical Research Letters, 2023
Permafrost warming and degradation is well documented across the Arctic. However, observation‐ and model‐based studies typically consider thaw to occur at 0°C, neglecting the widespread occurrence of saline permafrost in coastal plain regions.
Benjamin M. Jones, Mikhail Z. Kanevskiy, Andrew D. Parsekian, Helena Bergstedt, Melissa K. Ward Jones, Rodrigo C. Rangel, Kenneth M. Hinkel, Yuri Shur   +7 more
doaj   +1 more source

Spatial controls of methane uptake in upland soils across climatic and geological regions in Greenland

Communications Earth & Environment, 2023
In the Arctic, the spatiotemporal variation of net methane uptake in upland soils depends on unresolved interactive controls between edaphic and microbial factors not yet included in current models, underpinning the uncertainty of upscaling the Arctic ...
Ludovica D’Imperio, Bing-Bing Li, James M. Tiedje, Youmi Oh, Jesper Riis Christiansen, Sebastian Kepfer-Rojas, Andreas Westergaard-Nielsen, Kristian Koefoed Brandt, Peter E. Holm, Peiyan Wang, Per Ambus, Bo Elberling   +11 more
doaj   +1 more source

Geoinformation modeling of permafrost landscapes of North-Eastern Siberia

, 2022
The landscape-indicative approach makes it possible to determine permafrost landscapes based on the identification of two physiognomic indicators-variables of relief and vegetation, as well as stratigraphic-genetic sediment complexes. For permafrost characteristics of landscapes, multilevel combinations of environmental variables (criteria) for ...
Zakharov, Moisei, Gadal, Sébastien, Danilov, Yuri   +2 more
openaire   +2 more sources

Permafrost and lakes control river isotope composition across a boreal Arctic transect in the Western Siberian lowlands

Environmental Research Letters, 2018
The Western Siberian Lowlands (WSL) store large quantities of organic carbon that will be exposed and mobilized by the thawing of permafrost. The fate of mobilized carbon, however, is not well understood, partly because of inadequate knowledge of ...
P Ala-aho, C Soulsby, O S Pokrovsky, S N Kirpotin, J Karlsson, S Serikova, R Manasypov, A Lim, I Krickov, L G Kolesnichenko, H Laudon, D Tetzlaff   +11 more
doaj   +1 more source