Ontologia

HydroBASINS lev08 watershed · #2080181480

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 : Kholmogorskiy rayon, Vinogradovskiy rayon

5% lakePfafstetter: 26143070

Sub-basin area

2 495,8km²

Upstream area

281 912,5km²

Discharge

2 588,91m³/s

Mean elev.

35m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de рукав Репный75 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Sijskij

    IUCN IV

    State Natural Zakaznik

    6.90 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

271 distinct species · 668 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

668 obs · 37 cellules
Obs. / cellule
≥ 143
75–142
5–74
2–4
< 2

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 34 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Северная Двина : 24 espèces reliées par 61 interactions GloBI sur 5 types (connectance 10.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
61
Connectance
0.109
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

1,1°C

Annual rain

569mm

Moisture idx (CMI)

0,08

Runoff

445mm/an

PET

523mm

AET

403mm

Mean slope

3,5°

Water table

55cm

Forest

63%

Crops

1%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)