HydroBASINS lev08 watershed · #2080696350
Bassin de اترک
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 : Bojnurd, Esfarayen, Jajarm
Sub-basin area
815,3km²
Upstream area
5 797,9km²
Discharge
20,62m³/s
Mean elev.
1 337m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #2080699300986 km²
- Bassin de اترک18 km²
3 dept-equivalent regions (GADM L2)
- 431.9 km²53.0% of basin
- 382.4 km²46.9% of basin
- 1.4 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
62 distinct species · 137 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 اترک : 18 espèces reliées par 28 interactions GloBI sur 2 types (connectance 14.7%, filtre Serrano α=0.2). 2 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°
11,7°C
Annual rain
276mm
Moisture idx (CMI)
-0,78
Runoff
109mm/an
PET
1 249mm
AET
238mm
Mean slope
8,5°
Water table
587cm
Forest
0%
Crops
17%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)