HydroBASINS lev08 watershed · #2080892110
Bassin de وادي الكظر
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 1 administrative regions : Al Ula
Sub-basin area
976,2km²
Upstream area
5 708,7km²
Discharge
2,34m³/s
Mean elev.
889m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de وادي ثربة1777 km²
- Bassin de وادي الكظر628 km²
1 dept-equivalent regions (GADM L2)
- Al UlaAl Madinah · Saudi Arabia974.5 km²100.0% of basin
3 intersecting protected areas
Protected Area
176.14 km² overlap
Wadi Nakhlah Nature Reserve
IUCN IIProtected Area
72.19 km² overlap
Sharaan National Park
IUCN IIProtected Area
24.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
285 distinct species · 2 667 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 الكظر : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 10.5%, filtre Serrano α=0.2). 10 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°
21,4°C
Annual rain
66mm
Moisture idx (CMI)
-0,96
Runoff
17mm/an
PET
1 623mm
AET
55mm
Mean slope
7,2°
Water table
696cm
Forest
0%
Crops
7%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)