HydroBASINS lev08 watershed · #1080047230
Bassin de Oued Haddej
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 8 administrative regions : Belkhir, Guetar, Mazzouna, Meknassi, Menzel Bouzaiene +3
Sub-basin area
1 773,3km²
Upstream area
1 773,3km²
Discharge
3,61m³/s
Mean elev.
185m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 830.1 km²46.8% of basin
- 524.8 km²29.6% of basin
- 221.2 km²12.5% of basin
- 120.1 km²6.8% of basin
- 59.7 km²3.4% of basin
- 12.6 km²0.7% of basin
- 2.5 km²0.1% of basin
- 2.0 km²0.1% of basin
4 intersecting protected areas
Parc national de Djebel Bou-Hedma
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
163.79 km² overlap
Bouhedma
IUCN IINational Park
163.79 km² overlap
Sebkhat Noual
IUCN Not ReportedWetland Zone of National Importance
148.20 km² overlap
Sebkhat Noual
IUCN Not ReportedWetland of International Importance (Ramsar Site)
148.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
367 distinct species · 1 503 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Oued Haddej : 19 espèces reliées par 42 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 7 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°
18,6°C
Annual rain
167mm
Moisture idx (CMI)
-0,88
Runoff
60mm/an
PET
1 405mm
AET
142mm
Mean slope
3,2°
Water table
446cm
Forest
0%
Crops
0%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)