HydroBASINS lev08 watershed · #1080044000
Bassin · #1080044000
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 20 administrative regions : Beni Hassen, Bouhajla, Boumerdès, Chorbane, Chrarda +15
Sub-basin area
3 831,3km²
Upstream area
3 831,6km²
Discharge
4,41m³/s
Mean elev.
105m
Administrative coverage
20 dept-equivalent regions (GADM L2)
- 626.3 km²16.3% of basin
- 394.0 km²10.3% of basin
- 347.0 km²9.1% of basin
- 344.6 km²9.0% of basin
- 329.4 km²8.6% of basin
- 327.5 km²8.5% of basin
- Ouled ChamekhMahdia · Tunisia297.8 km²7.8% of basin
- 217.3 km²5.7% of basin
12 moreFull L2 list
- Kairouan Sud206.7 km² · 5.4%
- Ouled Haffouz200.5 km² · 5.2%
- Boumerdès157.8 km² · 4.1%
- Sidi El Heni83.3 km² · 2.2%
- Menzel Chaker74.7 km² · 2.0%
- M'Saken68.6 km² · 1.8%
- Zeramdine51.1 km² · 1.3%
- El Jem41.4 km² · 1.1%
- Beni Hassen35.6 km² · 0.9%
- Regueb14.4 km² · 0.4%
- Moknine10.5 km² · 0.3%
- Hencha2.8 km² · 0.1%
2 intersecting protected areas
Sebkhat Sidi El Heni
IUCN Not ReportedWetland Zone of National Importance
364.72 km² overlap
Sebkhat Sidi El Heni
IUCN Not ReportedWetland of International Importance (Ramsar Site)
364.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
182 distinct species · 3 539 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 · #1080044000 : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 5 types (connectance 6.9%, 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°
18,6°C
Annual rain
263mm
Moisture idx (CMI)
-0,80
Runoff
33mm/an
PET
1 354mm
AET
224mm
Mean slope
0,8°
Water table
255cm
Forest
0%
Crops
6%
Urban
2%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)