Ontologia

HydroBASINS lev08 watershed · #2080311860

Bassin de Альша

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 : Lyozna, Vitebsk

2% lakePfafstetter: 24280762

Sub-basin area

564,5km²

Upstream area

564,7km²

Discharge

3,91m³/s

Mean elev.

192m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Лучоса200 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Babinavitski

    IUCN IV

    Nature Sanctuary or Partial Reserve

    0.98 km² overlap

  • Chistik

    IUCN IV

    Nature Sanctuary or Partial Reserve

    0.95 km² overlap

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

Species present

52 distinct species · 78 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

78 obs · 12 cellules
Obs. / cellule
≥ 24
14–23
7–13
4–6
< 4

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

Ecological tissue

Sample of 28 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 Альша : 24 espèces reliées par 34 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
34
Connectance
0.090
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°

5,2°C

Annual rain

648mm

Moisture idx (CMI)

-0,01

Runoff

218mm/an

PET

653mm

AET

498mm

Mean slope

1,1°

Water table

138cm

Forest

39%

Crops

21%

Urban

0%

Protected

0%

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