Permafrost Soils / Soil Biology Bd.16 (PDF)
(Sprache: Englisch)
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...
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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.
Bibliographische Angaben
- 2008, 2009, 348 Seiten, Englisch
- Herausgegeben: Rosa Margesin
- Verlag: Springer-Verlag GmbH
- ISBN-10: 3540693718
- ISBN-13: 9783540693710
- Erscheinungsdatum: 31.10.2008
Abhängig von Bildschirmgrösse und eingestellter Schriftgrösse kann die Seitenzahl auf Ihrem Lesegerät variieren.
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- Grösse: 4.32 MB
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Englisch
Pressezitat
From the reviews:
"Permafrost Soils summarizes recent knowledge on a wide variety of aspects concerning permafrost and frozen soils that occupy over 20 percent of the Earth’s surface. … The book consists of 21 short essays by experts in the numerous micro-specializations. … Summing Up: … Upper-division undergraduates, graduate students, researchers, and faculty." (J. D. Ives, Choice, Vol. 46 (10), June, 2009)
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