HydroBASINS lev08 watershed · #3080477600
Bassin de Чая
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 : Chainskiy rayon, Kolpashevskiy rayon
Sub-basin area
500,3km²
Upstream area
26 505,4km²
Discharge
118,05m³/s
Mean elev.
71m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Тоя899 km²
- Bassin de Чая663 km²
2 dept-equivalent regions (GADM L2)
- Kolpashevskiy rayonTomsk · Russia400.7 km²79.7% of basin
- Chainskiy rayonTomsk · Russia102.2 km²20.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
86 distinct species · 102 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Чая : 28 espèces reliées par 43 interactions GloBI sur 4 types (connectance 8.1%, filtre Serrano α=0.2). 5 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°
-1,0°C
Annual rain
483mm
Moisture idx (CMI)
-0,20
Runoff
184mm/an
PET
605mm
AET
411mm
Mean slope
0,4°
Water table
4cm
Forest
43%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)