Ontologia

HydroBASINS lev08 watershed · #2080240560

Bassin de Волхов

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 : Chudovskiy rayon, Kirishi, Kirishskiy rayon

5% lakePfafstetter: 24325039

Sub-basin area

207,2km²

Upstream area

76 784km²

Discharge

653,7m³/s

Mean elev.

33m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Оломна268 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Boloto Bor

    IUCN IV

    State Natural Zakaznik

    0.17 km² overlap

  • CHistyj moh

    IUCN IV

    State Natural Zakaznik

    0.09 km² overlap

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

Species present

698 distinct species · 829 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

829 obs · 5 cellules
Obs. / cellule
≥ 750
750–749
44–749
24–43
< 24

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

Ecological tissue

Sample of 22 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 Волхов : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
23
Connectance
0.100
Patrimoniales
1
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°

3,9°C

Annual rain

645mm

Moisture idx (CMI)

0,08

Runoff

225mm/an

PET

591mm

AET

446mm

Mean slope

0,8°

Water table

52cm

Forest

71%

Crops

12%

Urban

16%

Protected

3%

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