HydroBASINS lev08 watershed · #2080292770
Bassin de 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, Cheboksary, Zvenigovskiy rayon
Sub-basin area
424,6km²
Upstream area
606 079km²
Discharge
3 313,33m³/s
Mean elev.
102m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Волга661 km²
- Bassin de Парат388 km²
3 dept-equivalent regions (GADM L2)
- 409.4 km²96.0% of basin
- 14.2 km²3.3% of basin
- 3.1 km²0.7% of basin
2 intersecting protected areas
Zavolzhskij
IUCN IVState Natural Zakaznik
5.36 km² overlap
Ozero Astrahanka
IUCN IIINatural Monument
0.19 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 923 distinct species · 77 194 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Волга : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 4 types (connectance 16.3%, filtre Serrano α=0.2). 13 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°
3,6°C
Annual rain
554mm
Moisture idx (CMI)
-0,13
Runoff
105mm/an
PET
636mm
AET
455mm
Mean slope
1,6°
Water table
141cm
Forest
47%
Crops
10%
Urban
31%
Protected
46%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)