HydroBASINS lev08 watershed · #2080405060
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 : Engel'sskiy rayon, Krasnoarmeyskiy rayon, Rovenskiy rayon
Sub-basin area
373,3km²
Upstream area
1 337 502,6km²
Discharge
8 210,75m³/s
Mean elev.
97m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Волга1339 km²
- Bassin de Волга585 km²
3 dept-equivalent regions (GADM L2)
- 282.6 km²75.4% of basin
- 69.5 km²18.6% of basin
- 22.6 km²6.0% of basin
1 intersecting protected areas
Opolzni u s. Mordovo
IUCN IIINatural Monument
2.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
127 distinct species · 161 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 7.8%, 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°
6,5°C
Annual rain
411mm
Moisture idx (CMI)
-0,50
Runoff
64mm/an
PET
820mm
AET
355mm
Mean slope
2,5°
Water table
312cm
Forest
4%
Crops
55%
Urban
0%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)