HydroBASINS lev08 watershed · #3080611280
Bassin de Оса
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 : Bokhanskiy rayon, Osinskiy rayon
Sub-basin area
615,3km²
Upstream area
2 373,7km²
Discharge
0,54m³/s
Mean elev.
519m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Оса1180 km²
- Bassin · #3080615040578 km²
2 dept-equivalent regions (GADM L2)
- Osinskiy rayonIrkutsk · Russia616.5 km²99.8% of basin
- Bokhanskiy rayonIrkutsk · Russia1.4 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
243 distinct species · 419 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Оса : 10 espèces reliées par 16 interactions GloBI sur 2 types (connectance 17.6%, filtre Serrano α=0.2). 4 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°
-1,5°C
Annual rain
438mm
Moisture idx (CMI)
-0,36
Runoff
11mm/an
PET
681mm
AET
380mm
Mean slope
4,6°
Water table
104cm
Forest
63%
Crops
33%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)