HydroBASINS lev08 watershed · #2080242770
Bassin de Оредеж
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 1 administrative regions : Gatchinskiy rayon
Sub-basin area
145,7km²
Upstream area
955,8km²
Discharge
6,56m³/s
Mean elev.
77m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Оредеж539 km²
- Bassin de Дивенка271 km²
1 dept-equivalent regions (GADM L2)
- 146.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
690 distinct species · 2 730 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Оредеж : 23 espèces reliées par 72 interactions GloBI sur 6 types (connectance 16.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
4,4°C
Annual rain
644mm
Moisture idx (CMI)
0,11
Runoff
207mm/an
PET
570mm
AET
440mm
Mean slope
1,0°
Water table
58cm
Forest
95%
Crops
2%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)