Permafrost Soils in Central Siberia

Permafrost Soils in Central Siberia PDF Author: Norman Gentsch
Publisher:
ISBN: 9783869240152
Category : Carbon sequestration
Languages : en
Pages : 105

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Book Description

Permafrost Soils in Central Siberia

Permafrost Soils in Central Siberia PDF Author: Norman Gentsch
Publisher:
ISBN: 9783869240152
Category : Carbon sequestration
Languages : en
Pages : 105

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Book Description


Microbial Properties and Habitats of Permafrost Soils on Taimyr Peninsula, Central Siberia

Microbial Properties and Habitats of Permafrost Soils on Taimyr Peninsula, Central Siberia PDF Author: Nicolé Schmidt
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 183

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Book Description


Permafrost Ecosystems

Permafrost Ecosystems PDF Author: Akira Osawa
Publisher: Springer Science & Business Media
ISBN: 1402096933
Category : Science
Languages : en
Pages : 507

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Book Description
Drawing from a decade-long collaboration between Japan and Russia, this important volume presents the first major synthesis of current knowledge on the ecophysiology of the coniferous forests growing on permafrost at high latitudes. It presents ecological data for a region long inaccessible to most scientists, and raises important questions about the global carbon balance as these systems are affected by the changing climate. Making up around 20% of the entire boreal forests of the northern hemisphere, these ‘permafrost forest ecosystems’ are subject to particular constraints in terms of temperature, nutrient availability, and root space, creating exceptional ecosystem characteristics not known elsewhere. This authoritative text explores their diversity, structure, dynamics and physiology. It provides a comparison of these forests in relation to boreal forests elsewhere, and concludes with an assessment of the potential responses of this unique biome to climate change. The book will be invaluable to advanced students and researchers interested in boreal vegetation, forest ecology, silviculture and forest soils, as well as to researchers into climate change and the global carbon balance.

Berichte zur Polarforschung

Berichte zur Polarforschung PDF Author: Nicolé Schmidt
Publisher:
ISBN:
Category :
Languages : en
Pages : 183

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Permafrost Soils

Permafrost Soils PDF Author: Rosa Margesin
Publisher: Springer Science & Business Media
ISBN: 3540693718
Category : Science
Languages : en
Pages : 346

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Book Description
Most of the Earth’s biosphere is characterized by low temperatures. Vast areas (>20%) of the soil ecosystem are permanently frozen or are unfrozen for only a few weeks in summer. Permafrost regions occur at high latitudes and also at high ele- tions; a significant part of the global permafrost area is represented by mountains. Permafrost soils are of global interest, since a significant increase in temperature is predicted for polar regions. Global warming will have a great impact on these soils, especially in northern regions, since they contain large amounts of organic carbon and act as carbon sinks, and a temperature increase will result in a release of carbon into the atmosphere. Additionally, the intensified release of the clima- relevant tracer gas methane represents a potential environmental harzard. Significant numbers of viable microorganisms, including bacteria, archaea, p- totrophic cyanobacteria and green algae, fungi and protozoa, are present in per- frost, and the characteristics of these microorganisms reflect the unique and extreme conditions of the permafrost environment. Remarkably, these microorg- isms have been reported to be metabolically active at subzero temperatures, even down to ?20°C.

Distribution of Late Pleistocene Ice-Rich Syngenetic Permafrost of the Yedoma Suite in East and Central Siberia, Russia

Distribution of Late Pleistocene Ice-Rich Syngenetic Permafrost of the Yedoma Suite in East and Central Siberia, Russia PDF Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781497418684
Category : Reference
Languages : en
Pages : 32

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Book Description
This digital database is the product of collaboration between the U.S. Geological Survey, the Geophysical Institute at the University of Alaska, Fairbanks; the Los Altos Hills Foothill College GeoSpatial Technology Certificate Program; the Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany; and the Institute of Physical Chemical and Biological Problems in Soil Science of the Russian Academy of Sciences. The primary goal for creating this digital database is to enhance current estimates of soil organic carbon stored in deep permafrost, in particular the late Pleistocene syngenetic ice-rich permafrost deposits of the Yedoma Suite. Previous studies estimated that Yedoma deposits cover about 1 million square kilometers of a large region in central and eastern Siberia, but these estimates generally are based on maps with scales smaller than 1:10,000,000. Taking into account this large area, it was estimated that Yedoma may store as much as 500 petagrams of soil organic carbon, a large part of which is vulnerable to thaw and mobilization from thermokarst and erosion.

Agrochemistry of the Soils of the USSR.: Central Siberia

Agrochemistry of the Soils of the USSR.: Central Siberia PDF Author: Pochvennyĭ institut imeni V.V. Dokuchaeva
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 312

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Book Description


... Permafrost, Or Permanently Frozen Ground

... Permafrost, Or Permanently Frozen Ground PDF Author: Siemon William Muller
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 266

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Book Description


Water-Carbon Dynamics in Eastern Siberia

Water-Carbon Dynamics in Eastern Siberia PDF Author: Takeshi Ohta
Publisher: Springer
ISBN: 981136317X
Category : Science
Languages : en
Pages : 309

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Book Description
This book discusses the water and carbon cycle system in the permafrost region of eastern Siberia, Providing vitalin sights into how climate change has affected the permafrost environment in recent decades. It analyzes the relationships between precipitation and evapotranspiration, gross primary production and runoff in the permafrost regions, which differ from those intropical and temperate forests. Eastern Siberia is located in the easternmost part of the Eurasian continent, and the land surface with underlying permafrost has developed over a period of seventy thousand years. The permafrost ecosystem has specific hydrological and meteorological characteristics in terms of the water and carbon dynamics, and the current global warming and resulting changes in the permafrost environment are serious issues in the high-latitude regions. The book is a valuable resource for students, researchers and professionals interested in forest meteorology and hydrology, forest ecology, and boreal vegetation, as well as the impact of climate change and water-carbon cycles in permafrost and non-permafrost regions.

Thawing Permafrost

Thawing Permafrost PDF Author: J. van Huissteden
Publisher: Springer Nature
ISBN: 3030313794
Category : Science
Languages : en
Pages : 508

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Book Description
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 components, and how these interact with climate, vegetation and geomorphological processes. In particular, the book covers the role of the large quantities of ice in many permafrost soils which are crucial to understanding carbon cycle processes. An explanation is given on how permafrost becomes loaded with ice and carbon. Gas hydrates are also introduced. Structures and processes formed by the intense freeze-thaw action in the active layer are considered (e.g. ice wedging, cryoturbation), and the processes that occur as the permafrost thaws, (pond and lake formation, erosion). The book introduces soil carbon accumulation and decomposition mechanisms and how these are modified in a permafrost environment. A separate chapter deals with deep permafrost carbon, gas reservoirs and recently discovered methane emission phenomena from regions such as Northwest Siberia and the Siberian yedoma permafrost.