HydroBASINS lev08 watershed · #3080587480
Bassin de Иртыш
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 7 administrative regions : Cherlakskiy rayon, Kalachinskiy rayon, Kormilovskiy rayon, Novovarshavskiy rayon, Omskiy rayon +2
Sub-basin area
2 602,7km²
Upstream area
246 718,6km²
Discharge
966,68m³/s
Mean elev.
99m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ертіс2006 km²
- Bassin de Булдыр538 km²
7 dept-equivalent regions (GADM L2)
- 1138.5 km²43.6% of basin
- 711.9 km²27.2% of basin
- 515.6 km²19.7% of basin
- 101.0 km²3.9% of basin
- 59.3 km²2.3% of basin
- 54.6 km²2.1% of basin
- 33.2 km²1.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
502 distinct species · 1 119 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Иртыш : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 5 types (connectance 11.1%, filtre Serrano α=0.2). 11 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°
1,3°C
Annual rain
355mm
Moisture idx (CMI)
-0,48
Runoff
9mm/an
PET
681mm
AET
314mm
Mean slope
0,3°
Water table
16cm
Forest
0%
Crops
56%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)