HydroBASINS lev08 watershed · #2080082520
Bassin de وادي عليب
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 7 administrative regions : Adam, Al Hajrah, Al Lith, Al Mandaq, Bani Hasan +2
Sub-basin area
1 810,5km²
Upstream area
1 810,5km²
Discharge
0m³/s
Mean elev.
451m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- Al HajrahAl Bahah · Saudi Arabia919.9 km²51.0% of basin
- 523.3 km²29.0% of basin
- QilwahAl Bahah · Saudi Arabia238.8 km²13.2% of basin
- Al MandaqAl Bahah · Saudi Arabia74.6 km²4.1% of basin
- 36.0 km²2.0% of basin
- 12.4 km²0.7% of basin
- Bani HasanAl Bahah · Saudi Arabia0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
106 distinct species · 160 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 وادي عليب : 39 espèces reliées par 50 interactions GloBI sur 5 types (connectance 5.1%, filtre Serrano α=0.2). 6 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°
29,0°C
Annual rain
148mm
Moisture idx (CMI)
-0,92
Runoff
34mm/an
PET
1 977mm
AET
122mm
Mean slope
9,5°
Water table
628cm
Forest
1%
Crops
6%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)