Shrubby willow communities in the upper reaches of the Dlinnaya river (Northern Koryakia of Northeastern Asia)

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• Shrubby willow communities in the upper reaches of the Dlinnaya river (Northern Koryakia of Northeastern Asia)

N. A. Sekretareva

DOI: https://doi.org/10.31111/vegrus/2001.01.36

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Annotation

The north-eastern part of the Koryak Highlands be­longs to the tall «stlanik» (prostrate elfin woodland, composed of Pinus pumila and Alnus fruticosa) subzone which corresponds to the subalpine belt of the North-Asian eastern highlands but holds a zonal position in the cis-Beringian areas. Communities of willow scrub are mostly restricted to river valleys here, because the more compe­titively strong mountain pine or alder «stlanik» commu­nities play the major role on mountain slopes and their trains. In the upper reaches of the Dlinnaya River willow scrub composed of Salix alaxensis, S. lanata subsp. richardsonii и S. pulchra with herb ground layers are growing in the riverbed-adjoining floodplain and on the low, periodically flooded river terraces. On the terraces of the upper level communities of Salix krylovii, S. pulchra and Betula nana subsp. exilis with dwarfshrubs and mosses in the ground layers are developed. Willow scrub commu­nities occur more seldom at the mountain slope bottoms or on the slope trains; here they wind along the mountain streams.

Key words: willow communities, classification, association, Northern Koryakia

Section: Articles

How to cite

Sekretareva N. A. 2001. Shrubby willow communities in the upper reaches of the Dlinnaya river (Northern Koryakia of Northeastern Asia) // Vegetation of Russia. N 1. P. 36–42. https://doi.org/10.31111/vegrus/2001.01.36