HydroBASINS lev08 watershed · #2080300030
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 : Kun'inskiy rayon, Velizhskiy rayon, Zapadnodvinskiy rayon
Sub-basin area
957,6km²
Upstream area
7 237,5km²
Discharge
61,45m³/s
Mean elev.
179m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Жижица737 km²
- Bassin de Западная Двина3 km²
3 dept-equivalent regions (GADM L2)
- Kun'inskiy rayonPskov · Russia612.6 km²63.7% of basin
- Zapadnodvinskiy rayonTver' · Russia315.0 km²32.7% of basin
- Velizhskiy rayonSmolensk · Russia34.5 km²3.6% of basin
5 intersecting protected areas
Boloto Usodica
IUCN IVState Natural Zakaznik
33.26 km² overlap
Boloto Ozernoe
IUCN IVState Natural Zakaznik
11.03 km² overlap
Boloto Vinigoshha
IUCN IVState Natural Zakaznik
4.55 km² overlap
Boloto u d. Rudnya
IUCN IVState Natural Zakaznik
0.61 km² overlap
Boloto u d. Kurilinki
IUCN IVState Natural Zakaznik
0.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
56 distinct species · 180 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 : 20 espèces reliées par 21 interactions GloBI sur 3 types (connectance 7.6%, 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°
4,6°C
Annual rain
634mm
Moisture idx (CMI)
-0,02
Runoff
260mm/an
PET
646mm
AET
491mm
Mean slope
0,9°
Water table
75cm
Forest
74%
Crops
5%
Urban
0%
Protected
25%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)