HydroBASINS lev08 watershed · #3080627190
Bassin · #3080627190
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 : Ol'khonskiy rayon, Water body
Sub-basin area
658km²
Upstream area
3 524,4km²
Discharge
17,01m³/s
Mean elev.
490m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Сарма1048 km²
- Bassin de Курма600 km²
2 dept-equivalent regions (GADM L2)
- Water bodyIrkutsk · Russia580.4 km²87.8% of basin
- Ol'khonskiy rayonIrkutsk · Russia80.3 km²12.2% of basin
1 intersecting protected areas
Lake Baikal
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
660.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
529 distinct species · 3 053 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 · #3080627190 : 20 espèces reliées par 30 interactions GloBI sur 5 types (connectance 7.9%, filtre Serrano α=0.2). 8 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°
-2,0°C
Annual rain
332mm
Moisture idx (CMI)
-0,50
Runoff
171mm/an
PET
666mm
AET
297mm
Mean slope
2,6°
Water table
71cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)