HydroBASINS lev08 watershed · #2080367200
Bassin de Большой Уран
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 7 administrative regions : Aleksandrovskiy rayon, Novosergievskiy rayon, Oktyabr'skiy, Orenburgskiy rayon, Perevolotskiy rayon +2
Sub-basin area
2 201km²
Upstream area
2 201,3km²
Discharge
5,84m³/s
Mean elev.
207m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Novosergievskiy rayonOrenburg · Russia879.9 km²39.8% of basin
- Perevolotskiy rayonOrenburg · Russia679.4 km²30.7% of basin
- Sorochinskiy rayonOrenburg · Russia439.5 km²19.9% of basin
- Sakmarskiy rayonOrenburg · Russia133.8 km²6.1% of basin
- Orenburgskiy rayonOrenburg · Russia70.4 km²3.2% of basin
- Oktyabr'skiyOrenburg · Russia6.4 km²0.3% of basin
- Aleksandrovskiy rayonOrenburg · Russia0.3 km²0.0% of basin
8 intersecting protected areas
Golubovskie lesnye kolki
IUCN IIINatural Monument
2.12 km² overlap
Kuvajskaya step`
IUCN IIINatural Monument
1.57 km² overlap
Golubovskie mohovye bolota
IUCN IIINatural Monument
1.20 km² overlap
Krasnye kamni
IUCN IIINatural Monument
0.48 km² overlap
Sosnovyj bor v s.Pervokrasnom
IUCN IIINatural Monument
0.43 km² overlap
Natural Monument
0.15 km² overlap
Kichkasskij rudnik
IUCN Not ReportedNatural Monument
0.06 km² overlap
Natural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
66 distinct species · 71 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Большой Уран : 13 espèces reliées par 11 interactions GloBI sur 1 type (connectance 12.1%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
4,1°C
Annual rain
424mm
Moisture idx (CMI)
-0,47
Runoff
82mm/an
PET
794mm
AET
364mm
Mean slope
1,8°
Water table
152cm
Forest
0%
Crops
50%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)