HydroBASINS lev08 watershed · #2080287610
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 : Oleninskiy rayon, Rzhevskiy rayon, Selizharovskiy rayon, Staritskiy rayon
Sub-basin area
1 532,7km²
Upstream area
9 452,2km²
Discharge
78,32m³/s
Mean elev.
242m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Большая Коша780 km²
- Bassin de Волга158 km²
4 dept-equivalent regions (GADM L2)
- Rzhevskiy rayonTver' · Russia631.2 km²41.0% of basin
- Selizharovskiy rayonTver' · Russia610.6 km²39.6% of basin
- Staritskiy rayonTver' · Russia292.5 km²19.0% of basin
- Oleninskiy rayonTver' · Russia5.8 km²0.4% of basin
18 intersecting protected areas
State Natural Zakaznik
10.86 km² overlap
Boloto Lipkinskij Moh
IUCN IVState Natural Zakaznik
10.26 km² overlap
Boloto Ol`hovskoe
IUCN IVState Natural Zakaznik
7.94 km² overlap
Boloto ZHernovskoe
IUCN IVState Natural Zakaznik
5.71 km² overlap
Dacha Titov Bor
IUCN IIINatural Monument
4.61 km² overlap
Lesnye nasazhdeniya po r. Lemenka
IUCN Not ReportedState Natural Zakaznik
4.53 km² overlap
Boloto u d. Ovchinniki
IUCN IVState Natural Zakaznik
3.35 km² overlap
Boloto YUsinskoe
IUCN IVState Natural Zakaznik
3.30 km² overlap
Lesnoj massiv u sela Il`i Gory
IUCN IIINatural Monument
2.35 km² overlap
9 more protected areassorted by overlap area
Bor na Volge u sela SHolohovo
IUCN IIINatural Monument
2.14 km² overlap
Boloto Berezovskij Moh
IUCN IVState Natural Zakaznik
2.04 km² overlap
Boloto Timohi
IUCN IVState Natural Zakaznik
1.81 km² overlap
Boloto Dolgushunskij Moh
IUCN IVState Natural Zakaznik
0.95 km² overlap
Boloto Gorovatskoe
IUCN IVState Natural Zakaznik
0.83 km² overlap
Boloto Gnilovskoe
IUCN IVState Natural Zakaznik
0.83 km² overlap
Boloto Moh Krasnaya Gora
IUCN IVState Natural Zakaznik
0.36 km² overlap
Boloto Kryukovskoe
IUCN IVState Natural Zakaznik
0.19 km² overlap
Boloto u d. Zal`kovo
IUCN IVState Natural Zakaznik
0.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
286 distinct species · 658 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 6 types (connectance 11.0%, filtre Serrano α=0.2). 6 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°
3,8°C
Annual rain
646mm
Moisture idx (CMI)
0,03
Runoff
241mm/an
PET
627mm
AET
487mm
Mean slope
1,3°
Water table
130cm
Forest
80%
Crops
11%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)