Geochemistry of Plant-Soil-Permafrost System on Landslide-Affected Slopes, Yamal, Russia as an Indicator of Landslide Age

Авторы: Nataliya Ukraintseva, Marina Leibman, Irina Streletskaya, Tatiana Mikhaylova
Сборник: Landslides in Cold Regions in the Context of Climate Change
Серия: Environmental Science and Engineering
Год издания: 2014
Место издания: Springer International Publishing Springer International Publishing Switzerland
Первая страница: 107
Последняя страница: 131
DOI: 10.1007/978-3-319-00867-7_9
Аннотация: Cryogenic landslides on saline marine sediments are widely distributed in Typical tundra bioclimatic subzone of the Yamal Peninsula. Interrelation between the height and productivity of the willow tundra, and activation of cryogenic processes are discussed. It is supposed that high willow canopies are the indicators of ancient landslide activities and may serve as fundamental guide for mapping of landslides in the region. Various procedures are proposed to evaluate the relative age of the landslides. They include, study of the succession of vegetation cover, ash content in each vegetation group, groundwater and sediment chemistry on the landslide-affected slopes. It is shown that the landslide process causes desalinization of marine sediments and enriches the active layer with salts. This is an important peculiarity of cryogenic landslides in the region with saline permafrost distribution.
Добавил в систему: Стрелецкая Ирина Дмитриевна

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