HydroBASINS lev08 watershed · #2080284950
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 : Rzhevskiy rayon, Staritskiy rayon, Zubtsovskiy rayon
Sub-basin area
728,5km²
Upstream area
21 305,1km²
Discharge
162,91m³/s
Mean elev.
200m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Дёржа715 km²
- Bassin de Волга135 km²
3 dept-equivalent regions (GADM L2)
- Rzhevskiy rayonTver' · Russia340.2 km²46.5% of basin
- Staritskiy rayonTver' · Russia333.9 km²45.6% of basin
- Zubtsovskiy rayonTver' · Russia57.9 km²7.9% of basin
10 intersecting protected areas
Boloto Talickoe-Turavec
IUCN IVState Natural Zakaznik
8.34 km² overlap
Stolypinskij bor
IUCN IIINatural Monument
6.29 km² overlap
Dacha Polezhaevo
IUCN IIINatural Monument
4.45 km² overlap
Dacha SHishkin Bor
IUCN IIINatural Monument
3.84 km² overlap
Ust`e reki Derzhi
IUCN IIINatural Monument
0.46 km² overlap
Roshha vyazovaya Starickaya
IUCN IIINatural Monument
0.30 km² overlap
Les Sel`covskie Zalomki
IUCN IIINatural Monument
0.24 km² overlap
Ovrag Verhnekoloshinskij
IUCN IIINatural Monument
0.21 km² overlap
Ovrag SHapovskij
IUCN IIINatural Monument
0.12 km² overlap
1 more protected areassorted by overlap area
Park Orehovo
IUCN Not ReportedNatural Monument
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
642 distinct species · 2 370 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 : 21 espèces reliées par 33 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 4 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°
4,1°C
Annual rain
631mm
Moisture idx (CMI)
0,00
Runoff
225mm/an
PET
632mm
AET
487mm
Mean slope
1,4°
Water table
129cm
Forest
65%
Crops
18%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)