Ontologia

HydroBASINS lev08 watershed · #2080257210

Bassin de Псижа

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 9 administrative regions : Batetskiy rayon, Dnovskiy rayon, Novgorodskiy rayon, Shimskiy rayon, Soletskiy rayon +4

191% lakePfafstetter: 24326010

Sub-basin area

1 660,1km²

Upstream area

11 910,1km²

Discharge

95,09m³/s

Mean elev.

49m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Волхов118 km²

▲ Receives from 2 basins

9 dept-equivalent regions (GADM L2)

1 more

3 intersecting protected areas

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

Species present

1 265 distinct species · 10 801 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 801 obs · 42 cellules
Obs. / cellule
≥ 5 367
353–5 366
87–352
17–86
< 17

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 Псижа : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 6 types (connectance 16.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
70
Connectance
0.161
Patrimoniales
2
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°

4,2°C

Annual rain

590mm

Moisture idx (CMI)

-0,03

Runoff

225mm/an

PET

611mm

AET

455mm

Mean slope

0,4°

Water table

26cm

Forest

37%

Crops

48%

Urban

2%

Protected

0%

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