Results 261 to 270 of about 99,621 (296)
Some of the next articles are maybe not open access.

The Permafrost Prediction

Scientific American, 2020
The article focuses on research into how great an impact thawing permafrost in arctic regions may have on climate change. It states nearly 1,450 bill ion metric tons of organic carbon is be found in the Northern Hemisphere permafrost region and mentions as permafrost thaws, frozen soil microbes reactivate and start decomposing animal and plant remains ...
openaire   +3 more sources

Permafrost-carbon complexities

Nature Geoscience, 2013
The thawing and decomposition of carbon stored in permafrost generates greenhouse gases that could further intensify global warming. Currently, most of the thawed carbon is assumed to be converted to greenhouse gases, such as carbon dioxide and methane, and carbon decomposition is thought to only occur at the site of the thaw.
Vonk, J.E., Gustafsson, Ö.
openaire   +4 more sources

Permafrost in Transition [PDF]

open access: possible, 2020
Climate change results in physical changes in permafrost soils: active layer thickness, temperature, soil hydrology and abrupt thaw features in ice-rich soils. Abrupt thaw features create new landforms such as ponds, lakes and erosion phenomena. In this chapter, current observations of physical changes in permafrost soils are discussed, including their
openaire   +1 more source

Bacteria in Permafrost [PDF]

open access: possible, 2008
Significant numbers of viable ancient microorganisms are known to be present within the permafrost. They have been isolated in both polar regions from the cores up to 400 m deep and ground temperatures of -27 C. The age of the cells corresponds to the longevity of the permanently frozen state of the soils, with the oldest cells dating back to {approx}3
Vladimir Mamykin   +5 more
openaire   +1 more source

Permafrost in Mongolia

2021
In this chapter, the general characteristics of permafrost and cryogenic features are described, and the degradation of permafrost is simply analyzed too. The permafrost in Mongolia lies at the southern edge of Siberian permafrost with different permafrost zones.
openaire   +2 more sources

Thawing Permafrost

2020
This book provides a cross-disciplinary overview of permafrost and the carbon cycle by providing an introduction into the geographical distribution of permafrost, with a focus on the distribution of permafrost and its soil carbon reservoirs. The chapters explain the basic physical properties and processes of permafrost soils: ice, mineral and organic ...
openaire   +2 more sources

The microbial ecology of permafrost

Nature Reviews Microbiology, 2014
Permafrost constitutes a major portion of the terrestrial cryosphere of the Earth and is a unique ecological niche for cold-adapted microorganisms. There is a relatively high microbial diversity in permafrost, although there is some variation in community composition across different permafrost features and between sites.
Jansson, Janet, Tas, Neslihan
openaire   +4 more sources

Climate and permafrost

Permafrost and Periglacial Processes, 1993
AbstractData from Yakutia, Siberia, indicate that permafrost has been generally stable for the last 300,000 years. Historic records indicate climatic variability in the last 150 years and predict that, in comparison with the 1980s, winters will be colder and summers warmer in the early part of the twenty‐first century.
openaire   +2 more sources

Piles in Permafrost [PDF]

open access: possibleJournal of Cold Regions Engineering, 1987
Piles have been installed in permafrost in the northern hemisphere for various engineering purposes. To date, there is a large amount of published information on piles in permafrost which has led to accepted design practices. However, there are no standards for designing or testing piles.
openaire   +1 more source

Lawns on Permafrost

Ecology and Industry of Russia, 2017
The features of the application of different soils under turf laying in permafrost conditions. Considers tillage techniques and training soils conditions bookmark lawns, seeding and planting, care in the summer and winter seasons. The recommendations for depth bookmark lawns, burrows for moms-seeding, types of grass mixtures and planting shrubs schemes,
openaire   +2 more sources

Home - About - Disclaimer - Privacy