Rivière· 29 segments
Обаль
Crosses 4 administrative regions : Haradok, Nevel'skiy rayon, Polatsak, Shumilina
Total length
167km
Max discharge
20,2m³/s
Max Strahler
4
Segments matched
29
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- ShumilinaVitebsk · Belarus82.9 kmin this dpt
- HaradokVitebsk · Belarus53.9 kmin this dpt
- PolatsakVitebsk · Belarus2.8 kmin this dpt
- Nevel'skiy rayonPskov · Russia1.2 kmin this dpt
2 intersecting protected areas
Kozyanskiy
IUCN IVNature Sanctuary or Partial Reserve
Kozyansky
IUCN IVWetland of International Importance (Ramsar Site)
1 page = 1 named river (aggregation of 29 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
3 distinct species · 3 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Обаль : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
167km
Max discharge
20,2m³/s
Max Strahler
4
Segments matched
29
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.