HydroBASINS lev08 watershed · #2080304860
Bassin de Западная Двина
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 across 2 countries : Kun'inskiy rayon, Velizhskiy rayon, Vitebsk
Sub-basin area
585,5km²
Upstream area
17 879,6km²
Discharge
144,27m³/s
Mean elev.
167m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Березовка162 km²
- Bassin de Западная Двина161 km²
3 dept-equivalent regions (GADM L2)
- Velizhskiy rayonSmolensk · Russia447.0 km²76.0% of basin
- 118.9 km²20.2% of basin
- Kun'inskiy rayonPskov · Russia22.3 km²3.8% of basin
3 intersecting protected areas
Velizhskij
IUCN IVState Natural Zakaznik
161.50 km² overlap
Natural Monument
0.23 km² overlap
Torfyanik Logunovskij Moh
IUCN IIINatural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
158 distinct species · 255 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 Западная Двина : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 6 types (connectance 11.9%, filtre Serrano α=0.2). 12 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°
5,0°C
Annual rain
636mm
Moisture idx (CMI)
-0,02
Runoff
250mm/an
PET
652mm
AET
494mm
Mean slope
0,9°
Water table
66cm
Forest
70%
Crops
15%
Urban
2%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)