HydroBASINS lev08 watershed · #2080293620
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 2 administrative regions : Kun'inskiy rayon, Zapadnodvinskiy rayon
Sub-basin area
321,7km²
Upstream area
3 752,3km²
Discharge
31,89m³/s
Mean elev.
183m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Западная Двина1241 km²
- Bassin de Велеса978 km²
2 dept-equivalent regions (GADM L2)
- Zapadnodvinskiy rayonTver' · Russia321.4 km²99.5% of basin
- Kun'inskiy rayonPskov · Russia1.8 km²0.5% of basin
6 intersecting protected areas
Zapadnodvinskij
IUCN IVState Natural Zakaznik
3.43 km² overlap
Boloto u d. Mosyagino
IUCN IVState Natural Zakaznik
2.88 km² overlap
Boloto u d. Kurilinki
IUCN IVState Natural Zakaznik
2.23 km² overlap
Boloto u d. Zabezhnya
IUCN IVState Natural Zakaznik
1.89 km² overlap
Boloto u d. Rudnya
IUCN IVState Natural Zakaznik
1.34 km² overlap
State Natural Zakaznik
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
52 distinct species · 64 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 21 interactions GloBI sur 2 types (connectance 10.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
4,5°C
Annual rain
634mm
Moisture idx (CMI)
-0,01
Runoff
271mm/an
PET
643mm
AET
490mm
Mean slope
1,0°
Water table
94cm
Forest
79%
Crops
10%
Urban
0%
Protected
28%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)