HydroBASINS lev08 watershed · #2080292600
Bassin de протока Старая Волга
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 : Cheboksarskiy rayon, Mariinsko-Posadskiy rayon, Zvenigovskiy rayon
Sub-basin area
278,5km²
Upstream area
610 990km²
Discharge
3 333,53m³/s
Mean elev.
125m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Большой Цивиль4631 km²
- Bassin de Волга425 km²
3 dept-equivalent regions (GADM L2)
- 222.1 km²79.4% of basin
- 34.7 km²12.4% of basin
- 23.0 km²8.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 240 distinct species · 8 493 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 протока Старая Волга : 18 espèces reliées par 28 interactions GloBI sur 2 types (connectance 16.4%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
3,5°C
Annual rain
556mm
Moisture idx (CMI)
-0,13
Runoff
111mm/an
PET
636mm
AET
455mm
Mean slope
1,8°
Water table
184cm
Forest
36%
Crops
32%
Urban
4%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)