HydroBASINS lev08 watershed · #2080742220
Bassin de قره چای
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 3 administrative regions : Qom, Saveh, Tafresh
Sub-basin area
357,7km²
Upstream area
17 879,7km²
Discharge
70,86m³/s
Mean elev.
1 472m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de قره چای182 km²
- Bassin de قره چای162 km²
3 dept-equivalent regions (GADM L2)
- 329.9 km²92.2% of basin
- 17.0 km²4.7% of basin
- 10.8 km²3.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
52 distinct species · 97 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 قره چای : 17 espèces reliées par 14 interactions GloBI sur 2 types (connectance 10.3%, 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°
14,0°C
Annual rain
228mm
Moisture idx (CMI)
-0,83
Runoff
88mm/an
PET
1 374mm
AET
194mm
Mean slope
10,1°
Water table
680cm
Forest
0%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)