HydroBASINS lev08 watershed · #2080676690
Bassin de اهر چایی
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 : Ahar, Heris, Neer
Sub-basin area
795,1km²
Upstream area
2 487,2km²
Discharge
6,28m³/s
Mean elev.
1 557m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de قره چای169 km²
- Bassin de اهر چایی126 km²
3 dept-equivalent regions (GADM L2)
- 461.4 km²58.0% of basin
- 309.7 km²38.9% of basin
- 24.4 km²3.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
506 distinct species · 2 188 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 اهر چایی : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 4 types (connectance 5.8%, filtre Serrano α=0.2). 10 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°
9,5°C
Annual rain
379mm
Moisture idx (CMI)
-0,63
Runoff
84mm/an
PET
1 033mm
AET
329mm
Mean slope
9,0°
Water table
532cm
Forest
0%
Crops
47%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)