HydroBASINS lev08 watershed · #3080523980
Bassin de Обь
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 3 administrative regions : Kozhevnikovskiy rayon, Shegarskiy rayon, Tomskiy rayon
Sub-basin area
1 905,9km²
Upstream area
263 060,2km²
Discharge
1 702,61m³/s
Mean elev.
102m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Таган1217 km²
- Bassin de Уртамка1116 km²
3 dept-equivalent regions (GADM L2)
- Shegarskiy rayonTomsk · Russia1252.4 km²65.4% of basin
- Tomskiy rayonTomsk · Russia459.5 km²24.0% of basin
- Kozhevnikovskiy rayonTomsk · Russia203.2 km²10.6% of basin
2 intersecting protected areas
Ilovskij
IUCN IVState Natural Zakaznik
73.22 km² overlap
Bolotnyj massiv u d. Novouspenka
IUCN IIINatural Monument
26.83 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
439 distinct species · 1 077 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Обь : 20 espèces reliées par 60 interactions GloBI sur 5 types (connectance 12.9%, 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°
0,4°C
Annual rain
497mm
Moisture idx (CMI)
-0,22
Runoff
86mm/an
PET
635mm
AET
421mm
Mean slope
0,6°
Water table
14cm
Forest
62%
Crops
24%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)