HydroBASINS lev08 watershed · #3080589430
Bassin de Ока
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Kuytunskiy rayon, Ziminskiy rayon
Sub-basin area
331,2km²
Upstream area
32 773,4km²
Discharge
276,81m³/s
Mean elev.
494m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Хунхара989 km²
- Bassin de Ока39 km²
2 dept-equivalent regions (GADM L2)
- Kuytunskiy rayonIrkutsk · Russia271.8 km²81.7% of basin
- Ziminskiy rayonIrkutsk · Russia60.8 km²18.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
84 distinct species · 127 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Bassin de Ока : 18 espèces reliées par 24 interactions GloBI sur 2 types (connectance 11.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-1,6°C
Annual rain
380mm
Moisture idx (CMI)
-0,44
Runoff
136mm/an
PET
681mm
AET
334mm
Mean slope
2,0°
Water table
28cm
Forest
66%
Crops
32%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)