HydroBASINS lev08 watershed · #2080210430
Bassin de Северная 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 : Kotlasskiy rayon, Krasnoborskiy rayon
Sub-basin area
1 320,8km²
Upstream area
207 032,5km²
Discharge
1 421,65m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Удима2354 km²
- Bassin de Ергус244 km²
2 dept-equivalent regions (GADM L2)
- Kotlasskiy rayonArkhangel'sk · Russia892.9 km²67.2% of basin
- Krasnoborskiy rayonArkhangel'sk · Russia435.6 km²32.8% of basin
1 intersecting protected areas
Ozero CHurozero
IUCN IIINatural Monument
11.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
266 distinct species · 633 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Северная Двина : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 4 types (connectance 14.5%, filtre Serrano α=0.2). 7 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°
1,0°C
Annual rain
565mm
Moisture idx (CMI)
-0,01
Runoff
606mm/an
PET
571mm
AET
428mm
Mean slope
3,6°
Water table
64cm
Forest
79%
Crops
8%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)