HydroBASINS lev08 watershed · #3080127020
Bassin de Ольджо
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 2 administrative regions : Ust'-Yanskiy rayon, Verkhoyanskiy rayon
Sub-basin area
5 469,7km²
Upstream area
5 469,7km²
Discharge
22,72m³/s
Mean elev.
436m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 4786.4 km²86.9% of basin
- 722.9 km²13.1% of basin
3 intersecting protected areas
Old`o
IUCN VIResource Reserve
3932.68 km² overlap
reka Nenneli
IUCN IVThe Quiet Zone
185.13 km² overlap
Ozero Abyrabyt
IUCN IVThe Quiet Zone
34.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
18 distinct species · 24 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 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 Ольджо : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-16,6°C
Annual rain
248mm
Moisture idx (CMI)
-0,34
Runoff
134mm/an
PET
380mm
AET
231mm
Mean slope
6,3°
Water table
127cm
Forest
47%
Crops
0%
Urban
0%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)