HydroBASINS lev08 watershed · #2080468800
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 8 administrative regions : Chernoyarskiy rayon, Dubovskiy rayon, Gorodishchenskiy rayon, Kalachevskiy rayon, Leninskiy rayon +3
Sub-basin area
2 502,2km²
Upstream area
1 360 684,6km²
Discharge
8 200,74m³/s
Mean elev.
42m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Волга929 km²
- Bassin de Оленье275 km²
8 dept-equivalent regions (GADM L2)
- 1007.5 km²40.1% of basin
- 628.0 km²25.0% of basin
- 396.0 km²15.8% of basin
- 311.8 km²12.4% of basin
- 92.6 km²3.7% of basin
- 43.4 km²1.7% of basin
- 28.9 km²1.1% of basin
- Chernoyarskiy rayonAstrakhan' · Russia1.9 km²0.1% of basin
2 intersecting protected areas
Leshhevskij
IUCN IVState Natural Zakaznik
87.45 km² overlap
Protected Natural Landscape
7.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 639 distinct species · 30 075 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 : 29 espèces reliées par 99 interactions GloBI sur 4 types (connectance 14.9%, filtre Serrano α=0.2). 8 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°
8,3°C
Annual rain
384mm
Moisture idx (CMI)
-0,57
Runoff
75mm/an
PET
884mm
AET
332mm
Mean slope
0,9°
Water table
205cm
Forest
1%
Crops
31%
Urban
20%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)