HydroBASINS lev08 watershed · #2080300350
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 4 administrative regions : Laishevskiy rayon, Verkhneuslonskiy rayon, Vysokogorskiy rayon, Zelenodol'skiy rayon
Sub-basin area
286km²
Upstream area
649 628,4km²
Discharge
3 477,7m³/s
Mean elev.
114m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Свияга1567 km²
- Bassin de Сумка708 km²
4 dept-equivalent regions (GADM L2)
- 174.2 km²60.6% of basin
- 56.0 km²19.5% of basin
- 41.7 km²14.5% of basin
- 15.5 km²5.4% of basin
10 intersecting protected areas
Volzhskie prostory
IUCN IVState Natural Zakaznik
40.23 km² overlap
Gorodskoj lesopark Lebyazh`e
IUCN IIGreen Zone
19.93 km² overlap
Raifa Forest / Great Volzhsko-Kamsky (part of)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
2.83 km² overlap
Great Volzhsko-Kamsky
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
2.83 km² overlap
Volzhsko-Kamskij
IUCN IaState Natural Zapovednik
1.28 km² overlap
Lesnoj klyuch
IUCN IVState Natural Zakaznik
0.52 km² overlap
Massiv Dubki
IUCN IIINatural Monument
0.25 km² overlap
Kamennyj ovrag
IUCN IIINatural Monument
0.12 km² overlap
Natural Monument
0.06 km² overlap
1 more protected areassorted by overlap area
Ovrag CHeremushki
IUCN IIINatural Monument
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 413 distinct species · 6 884 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 9 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
544mm
Moisture idx (CMI)
-0,16
Runoff
177mm/an
PET
651mm
AET
453mm
Mean slope
2,1°
Water table
150cm
Forest
21%
Crops
30%
Urban
23%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)