HydroBASINS lev08 watershed · #2080070280
Bassin de Astaraçay
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 across 2 countries : Ardebil, Astara
Sub-basin area
402km²
Upstream area
402,5km²
Discharge
3,36m³/s
Mean elev.
545m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 166.8 km²41.5% of basin
- 157.7 km²39.2% of basin
- 77.6 km²19.3% of basin
4 intersecting protected areas
Hirkan National Park
IUCN IINational Park
106.93 km² overlap
Hyrcanian Forests
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
106.74 km² overlap
Hirkan
IUCN Not ReportedEmerald Network
102.95 km² overlap
Hirkan State Nature Reserve
IUCN IVState Nature Sanctuary
10.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
333 distinct species · 1 581 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 Astaraçay : 24 espèces reliées par 89 interactions GloBI sur 5 types (connectance 16.9%, filtre Serrano α=0.2). 9 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°
12,8°C
Annual rain
833mm
Moisture idx (CMI)
-0,16
Runoff
242mm/an
PET
985mm
AET
574mm
Mean slope
16,0°
Water table
596cm
Forest
34%
Crops
10%
Urban
10%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)