HydroBASINS lev08 watershed · #2080332820
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 9 administrative regions : Cherdaklinskiy rayon, Melekesskiy rayon, Sengileevskiy rayon, Teren'gul'skiy rayon, Tetyushskiy rayon +3
Sub-basin area
2 474km²
Upstream area
1 185 442,9km²
Discharge
7 649,26m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Урень1184 km²
- Bassin de Волга563 km²
9 dept-equivalent regions (GADM L2)
- Water bodyUl'yanovsk · Russia980.9 km²39.5% of basin
- Cherdaklinskiy rayonUl'yanovsk · Russia653.4 km²26.3% of basin
- Sengileevskiy rayonUl'yanovsk · Russia450.3 km²18.1% of basin
- Melekesskiy rayonUl'yanovsk · Russia161.2 km²6.5% of basin
- Ul'yanovskiy rayonUl'yanovsk · Russia148.0 km²6.0% of basin
- Teren'gul'skiy rayonUl'yanovsk · Russia45.1 km²1.8% of basin
- Ul'yanovskUl'yanovsk · Russia36.8 km²1.5% of basin
- 7.7 km²0.3% of basin
1 moreFull L2 list
- Water body1.3 km² · 0.1%
11 intersecting protected areas
Sengileevskie gory
IUCN IINational Park
269.21 km² overlap
Sengileevskie gory
IUCN IVState Natural Zakaznik
202.84 km² overlap
SHilovskaya lesostep`
IUCN IVState Natural Zakaznik
79.79 km² overlap
State Natural Zakaznik
12.69 km² overlap
Sengileevskij
IUCN IVState Natural Zakaznik
8.10 km² overlap
Natural Monument
1.00 km² overlap
PKO Primorskij
IUCN Not ReportedLandscape Park
0.21 km² overlap
PKO im. YA.M.Sverdlova
IUCN Not ReportedLandscape Park
0.09 km² overlap
PKO YUnosti
IUCN Not ReportedForestpark
0.09 km² overlap
2 more protected areassorted by overlap area
PKO Vinnovskaya roshha
IUCN Not ReportedLandscape Park
0.05 km² overlap
Detskij park im.A.Matrosova
IUCN Not ReportedLandscape Park
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 109 distinct species · 14 740 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 : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 6 types (connectance 16.6%, filtre Serrano α=0.2). 10 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°
4,4°C
Annual rain
513mm
Moisture idx (CMI)
-0,26
Runoff
124mm/an
PET
698mm
AET
435mm
Mean slope
1,3°
Water table
100cm
Forest
21%
Crops
47%
Urban
3%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)