HydroBASINS lev08 watershed · #2080082560
Bassin de وادي العرج
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 4 administrative regions : Adam, Al Hajrah, Al Lith, Maysan
Sub-basin area
1 870,1km²
Upstream area
1 870,1km²
Discharge
0,24m³/s
Mean elev.
686m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1259.6 km²67.5% of basin
- 354.4 km²19.0% of basin
- 197.2 km²10.6% of basin
- Al HajrahAl Bahah · Saudi Arabia53.4 km²2.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
60 distinct species · 145 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 وادي العرج : 10 espèces reliées par 8 interactions GloBI sur 2 types (connectance 14.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
27,6°C
Annual rain
145mm
Moisture idx (CMI)
-0,92
Runoff
22mm/an
PET
1 922mm
AET
119mm
Mean slope
13,2°
Water table
669cm
Forest
1%
Crops
6%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)