Ontologia

HydroBASINS lev08 watershed · #2080246620

Bassin de Веряжка

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 3 administrative regions : Gatchinskiy rayon, Luzhskiy rayon, Volosovskiy rayon

Pfafstetter: 24298060

Sub-basin area

889,2km²

Upstream area

889,2km²

Discharge

6,39m³/s

Mean elev.

110m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Луга170 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

1 027 distinct species · 2 541 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 541 obs · 20 cellules
Obs. / cellule
≥ 1 059
469–1 058
119–468
36–118
< 36

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

Ecological tissue

Sample of 30 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 Веряжка : 21 espèces reliées par 83 interactions GloBI sur 5 types (connectance 19.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
83
Connectance
0.191
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°

4,3°C

Annual rain

678mm

Moisture idx (CMI)

0,16

Runoff

225mm/an

PET

568mm

AET

446mm

Mean slope

1,0°

Water table

49cm

Forest

84%

Crops

12%

Urban

1%

Protected

0%

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