HydroBASINS lev08 watershed · #2080655120
Bassin de Արփա
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 5 administrative regions across 2 countries : Babək, Kəlbəcər, Maku, Şahbuz, Şərur
Sub-basin area
2 500,9km²
Upstream area
2 500,9km²
Discharge
6,67m³/s
Mean elev.
1 977m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 364.9 km²14.6% of basin
- 21.3 km²0.9% of basin
- 13.3 km²0.5% of basin
- 0.5 km²0.0% of basin
- 0.1 km²0.0% of basin
14 intersecting protected areas
"Djermuk" area
IUCN Not ReportedEmerald Network
346.15 km² overlap
Arpachay
IUCN Not ReportedEmerald Network
271.43 km² overlap
State Nature Sanctuary
265.33 km² overlap
"Gnishik" Protected landscape
IUCN Not ReportedEmerald Network
227.31 km² overlap
Caucasus Wildlife Refuge
IUCN VIPrivately Protected Area
211.60 km² overlap
Jermuk Hydrological
IUCN IVSanctuary
170.39 km² overlap
Jermuk Forest
IUCN IVSanctuary
36.18 km² overlap
Herher Open Forests
IUCN IVSanctuary
28.10 km² overlap
Lake Sevan
IUCN IIWetland of International Importance (Ramsar Site)
5.14 km² overlap
5 more protected areassorted by overlap area
"Sevan" National park
IUCN Not ReportedEmerald Network
5.00 km² overlap
"Gorhajk" area
IUCN Not ReportedEmerald Network
1.90 km² overlap
State Nature Sanctuary
1.16 km² overlap
Zangezur-Agridag
IUCN Not ReportedEmerald Network
0.69 km² overlap
Zangazur National Park
IUCN IINational Park
0.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 965 distinct species · 29 191 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Արփա : 18 espèces reliées par 65 interactions GloBI sur 5 types (connectance 16.0%, filtre Serrano α=0.2). 11 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°
6,4°C
Annual rain
442mm
Moisture idx (CMI)
-0,49
Runoff
73mm/an
PET
915mm
AET
383mm
Mean slope
13,6°
Water table
576cm
Forest
0%
Crops
17%
Urban
2%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)