Association Cypero-Limoselletum (Oberd. 1957) Korneck 1960 (Isoëto-Nanojuncetea) in the middle Ob River floodplain

G. S. Taran

DOI: https://doi.org/10.31111/vegrus/2001.01.43

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During 1988—1991 the stands of Cypero-Limoselletum (Oberd. 1957) Korneck 1960 were studied in the floodplain of middle Ob River between its tributaries Tym and Vakh. There the association is represented by subass. C.-L. rumicetosum ucranici Taran 1994 with facies limosellosum aquaticae, physcomitrellosum patentis, salicosum triandro-viminalis, rumicosum ucranici, coleanthosum subtilis and subass.C.-L. coleanthetosum Taran 1994 with facies typicum, callitrichosum palustris, eleocharitosum acicularis, filaginellosum pilularis. The duration of developing cycle of the association stands is about 9—12 weeks and yearly frequency of their successful appearance realized in perfect seed maturation is about 35 %. The near mouth internal deltas (shors) of Ob tributaries are the refugia of Coleanthus subtilis (Poaceae) stationary populations and natural prototypes of Central Europian fish ponds where Coleanthus subtilis have kept safe during many centuries because of extensive «three-year» system of fish pond management. It proposed to declare the near mouth shor in lower reachs of Lar’yogan River as protected territory. It is produced 60 releves of the association stands.

Key words: sintaxonomy, Coleanhus subtilis, Cypero-Limoselletum, Isoёto-Nanojuncetea

Section: Articles

How to cite

Taran G. S. 2001. Association Cypero-Limoselletum (Oberd. 1957) Korneck 1960 (Isoëto-Nanojuncetea) in the middle Ob River floodplain // Vegetation of Russia. N 1. P. 43–56. https://doi.org/10.31111/vegrus/2001.01.43