Auflistung nach Schlagwort "Permafrost"

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  • Community structure, ecophysiology, and regulation of new, acid-tolerant denitrifiers as cause of high N2O emissions from cryoturbated peat circles of acidic tundra soils 
    Hetz, Stefanie Alexandra (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)
    Denitrification is the main source of N2O emissions from cryoturbated peat circles in the Eastern European Arctic tundra. These permafrost-affected bare peat circles lack vegetation, have a high amount of available nitrate, ...
  • Effects of temperature and land-use change on soil organic matter dynamics in a permafrost-affected ecosystem 
    Peplau, Tino Andreas (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    Subarctic ecosystems are among the regions on earth that experience the strongest impact by climate change. As a result of global warming, agricultural centers are shifting poleward into previously non-viable regions of ...
  • Fates of lignin and carbohydrates in Siberian soils 
    Dao, Thi Thao (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022)
    Permafrost-affected soils contain a huge reservoir of organic matter (OM) which, in the past, was largely persistent against microbial decomposition as consequence of cool and waterlogged conditions in the active layer, ...
  • A globally relevant stock of soil nitrogen in the Yedoma permafrost domain 
    Strauss, Jens; Biasi, Christina; Sanders, Tina; Abbott, Benjamin W.; Schneider von Deimling, Thomas; Voigt, Carolina; Winkel, Matthias; Marushchak, Maija E.; Kou, Dan; Fuchs, Matthias; Horn, Marcus A.; Jongejans, Loeka L.; Liebner, Susanne; Nitzbon, Jan; Schirrmeister, Lutz; Walter Anthony, Katey; Yang, Yuanhe; Zubrzycki, Sebastian; Laboor, Sebastian; Treat, Claire; Grosse, Guido ([London] : Nature Publishing Group UK, 2022)
    Nitrogen regulates multiple aspects of the permafrost climate feedback, including plant growth, organic matter decomposition, and the production of the potent greenhouse gas nitrous oxide. Despite its importance, current ...
  • Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil 
    Wild, Birgit; Schnecker, Jörg; Alves, Ricardo J. Eloy; Barsukov, Pavel; Barta, Jiri; Čapek, Petr; Gentsch, Norman; Gittel, Antje; Guggenberger, Georg; Lashchinskiy, Nikolay; Mikutta, Robert; Rusalimova, Olga; Šantrůčková, Hana; Shibistova, Olga; Urich, Tim; Watzka, Margarete; Zrazhevskaya, Galina; Richter, Andreas (London : Elsevier Ltd., 2014)
    Rising temperatures in the Arctic can affect soil organic matter (SOM) decomposition directly and indirectly, by increasing plant primary production and thus the allocation of plant-derived organic compounds into the soil. ...
  • Microbial community composition shapes enzyme patterns in topsoil and subsoil horizons along a latitudinal transect in Western Siberia 
    Schnecker, Jörg; Wild, Birgit; Takriti, Mounir; Eloy Alves, Ricardo J.; Gentsch, Norman; Gittel, Antje; Hofer, Angelika; Klaus, Karoline; Knoltsch, Anna; Lashchinskiy, Nikolay; Mikutta, Robert; Richter, Andreas (Amsterdam : Elsevier, 2015)
    Soil horizons below 30cm depth contain about 60% of the organic carbon stored in soils. Although insight into the physical and chemical stabilization of soil organic matter (SOM) and into microbial community composition ...
  • Nitrogen dynamics in Turbic Cryosols from Siberia and Greenland 
    Wild, Birgit; Schnecker, Jörg; Bárta, Jiri; Čapek, Petr; Guggenberger, Georg; Hofhansl, Florian; Kaiser, Christina; Lashchinskiy, Nikolay; Mikutta, Robert; Mooshammer, Maria; Šantrůčková, Hana; Shibistova, Olga; Urich, Tim; Zimov, Sergey A.; Richter, Andreas (Amsterdam : Elsevier, 2013)
    Turbic Cryosols (permafrost soils characterized by cryoturbation, i.e., by mixing of soil layers due to freezing and thawing) are widespread across the Arctic, and contain large amounts of poorly decomposed organic material ...
  • Past, present, and future geo-biosphere interactions on the Tibetan Plateau and implications for permafrost 
    Ehlers, Todd A.; Chen, Deliang; Appel, Erwin; Bolch, Tobias; Chen, Fahu; Diekmann, Bernhard; Dippold, Michaela A.; Giese, Markus; Guggenberger, Georg; Lai, Hui-Wen; Li, Xin; Liu, Junguo; Liu, Yongqin; Ma, Yaoming; Miehe, Georg; Mosbrugger, Volker; Mulch, Andreas; Piao, Shilong; Schwalb, Antje; Thompson, Lonnie G.; Su, Zhongbo; Sun, Hang; Yao, Tandong; Yang, Xiaoxin; Yang, Kun; Zhu, Liping (Amsterdam [u.a.] : Elsevier, 2022)
    Interactions between the atmosphere, biosphere, cryosphere, hydrosphere, and geosphere are most active in the critical zone, a region extending from the tops of trees to the top of unweathered bedrock. Changes in one or ...
  • Permafrost-Detektion mittels Fernerkundung und Geophysik auf dem tibetischen Plateau 
    Reinosch, Eike; Buckel, Johannes; Gerke, Markus; Hördt, Andreas; Baade, Jussi; Riedel, Björn (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2020)
    In this study we combine geophysical techniques in the form of microwave remote sensing and Electrical Resistance Tomography (ERT) interferometry to study the extent of permafrost in the catchment of Lake Nam Co on the ...
  • Physical modelling of arctic coastlines-progress and limitations 
    Korte, Sophia; Gieschen, Rebekka; Stolle, Jacob; Goseberg, Nils (Basel : MDPI AG, 2020)
    Permafrost coastlines represent a large portion of the world's coastal area and these areas have become increasingly vulnerable in the face of climate change. The predominant mechanism of coastal erosion in these areas has ...