HydroBASINS lev08 watershed · #2080303010
Bassin de Заходняя Дзвіна
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 1 administrative regions : Polatsak
Sub-basin area
165,5km²
Upstream area
42 004,1km²
Discharge
312,11m³/s
Mean elev.
135m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Палата451 km²
- Bassin de Тросніца331 km²
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
455 distinct species · 1 010 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Заходняя Дзвіна : 28 espèces reliées par 95 interactions GloBI sur 6 types (connectance 13.5%, filtre Serrano α=0.2). 10 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°
5,4°C
Annual rain
645mm
Moisture idx (CMI)
-0,01
Runoff
230mm/an
PET
652mm
AET
495mm
Mean slope
1,2°
Water table
123cm
Forest
64%
Crops
11%
Urban
19%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)