HydroBASINS lev08 watershed · #3080519970
Bassin de Яя
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 4 administrative regions : Asinovskiy rayon, Pervomayskiy rayon, Tomskiy rayon, Zyryanskiy rayon
Sub-basin area
293km²
Upstream area
11 381,5km²
Discharge
98,31m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ташма724 km²
- Bassin de Яя338 km²
4 dept-equivalent regions (GADM L2)
- Asinovskiy rayonTomsk · Russia153.7 km²52.2% of basin
- Zyryanskiy rayonTomsk · Russia120.7 km²41.0% of basin
- Tomskiy rayonTomsk · Russia14.8 km²5.0% of basin
- Pervomayskiy rayonTomsk · Russia5.3 km²1.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
330 distinct species · 640 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Яя : 36 espèces reliées par 60 interactions GloBI sur 5 types (connectance 7.0%, filtre Serrano α=0.2). 6 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°
0,3°C
Annual rain
542mm
Moisture idx (CMI)
-0,14
Runoff
203mm/an
PET
631mm
AET
449mm
Mean slope
0,7°
Water table
5cm
Forest
45%
Crops
32%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)