HydroBASINS lev08 watershed · #3080531210
Bassin de Илим
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 : Nizhneilimskiy rayon, Ust'-Udinskiy rayon
Sub-basin area
3 293,3km²
Upstream area
15 728,4km²
Discharge
120,25m³/s
Mean elev.
533m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чора1337 km²
- Bassin de Илим499 km²
2 dept-equivalent regions (GADM L2)
- Nizhneilimskiy rayonIrkutsk · Russia2833.7 km²85.6% of basin
- Ust'-Udinskiy rayonIrkutsk · Russia475.5 km²14.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
159 distinct species · 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Илим : 20 espèces reliées par 56 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 10 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°
-3,7°C
Annual rain
412mm
Moisture idx (CMI)
-0,35
Runoff
313mm/an
PET
638mm
AET
358mm
Mean slope
4,3°
Water table
100cm
Forest
95%
Crops
0%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)