HydroBASINS lev08 watershed · #3080719960
Bassin de Old Orkhon
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 4 administrative regions : Kharkhorin, Khashaat, Khotont, Ögii nuur
Sub-basin area
828,9km²
Upstream area
4 351,6km²
Discharge
3,81m³/s
Mean elev.
1 456m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #3080726700249 km²
- Bassin de Зэгстийн гол137 km²
4 dept-equivalent regions (GADM L2)
- 387.9 km²46.7% of basin
- 302.1 km²36.3% of basin
- 108.5 km²13.0% of basin
- 32.8 km²3.9% of basin
2 intersecting protected areas
Orkhonii khundii
IUCN IINational Park
339.64 km² overlap
Khangain nuruu
IUCN IINational Park
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
229 distinct species · 933 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Old Orkhon : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 13.2%, filtre Serrano α=0.2). 12 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°
-0,2°C
Annual rain
256mm
Moisture idx (CMI)
-0,66
Runoff
28mm/an
PET
762mm
AET
238mm
Mean slope
1,8°
Water table
61cm
Forest
0%
Crops
1%
Urban
0%
Protected
41%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)