| 書(shū)目名稱(chēng) | Permafrost Soils | | 編輯 | Rosa Margesin | | 視頻video | http://file.papertrans.cn/745/744197/744197.mp4 | | 概述 | Includes supplementary material: | | 叢書(shū)名稱(chēng) | Soil Biology | | 圖書(shū)封面 |  | | 描述 | 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 temp | | 出版日期 | Book 2009 | | 關(guān)鍵詞 | Biodiversity; Global warming; Permafrost; ecosystem; geomorphology; microorganism; soil; climate change | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-540-69371-0 | | isbn_softcover | 978-3-642-08887-2 | | isbn_ebook | 978-3-540-69371-0Series ISSN 1613-3382 Series E-ISSN 2196-4831 | | issn_series | 1613-3382 | | copyright | Springer-Verlag Berlin Heidelberg 2009 |
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