HydroBASINS lev08 watershed · #2080284110
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 : Kalininskiy rayon, Konakovskiy rayon, Rameshkovskiy rayon, Tver'
Sub-basin area
919,1km²
Upstream area
32 301,3km²
Discharge
238,37m³/s
Mean elev.
141m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ведемья269 km²
- Bassin de Арефьевка24 km²
4 dept-equivalent regions (GADM L2)
- Kalininskiy rayonTver' · Russia594.6 km²64.4% of basin
- Konakovskiy rayonTver' · Russia168.3 km²18.2% of basin
- Rameshkovskiy rayonTver' · Russia82.7 km²9.0% of basin
- 77.9 km²8.4% of basin
7 intersecting protected areas
Boloto Orshinskij Moh
IUCN IVState Natural Zakaznik
8.05 km² overlap
State Natural Zakaznik
5.24 km² overlap
Zavidovo
IUCN IINational Park
1.88 km² overlap
Lisickij bor
IUCN IIINatural Monument
0.78 km² overlap
Berezovaya roshha
IUCN IIINatural Monument
0.17 km² overlap
Bobachevskaya roshha
IUCN IIINatural Monument
0.14 km² overlap
Saharovskij park
IUCN IIINatural Monument
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 917 distinct species · 17 551 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 90 interactions GloBI sur 4 types (connectance 14.3%, filtre Serrano α=0.2). 7 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°
4,3°C
Annual rain
611mm
Moisture idx (CMI)
-0,03
Runoff
214mm/an
PET
630mm
AET
479mm
Mean slope
0,9°
Water table
65cm
Forest
60%
Crops
22%
Urban
8%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)