| Summary: | The uppermost spring reaches of Labe, Mumlava, Bílé Labe, Úpa and Łomnice rivers in the Giant Mts. (Krkonoše in Czech) create sequences of rounded pools and short channels which resemble the arctic beaded streams described in arctic/subarctic regions of Eurasia and North America. Despite the absence of permafrost, Giant Mts´ mountain beaded streams are affected by a broad range of environmental processes encountered in the cryo-vegetation zone of the arctic-alpine tundra. Polygenetic mountain beaded streams in the Giant Mountains started developing in the Subatlantic period, not earlier than 2000 years BP. They exemplify a legible complex of antagonistic and stabilization processes.
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