HydroBASINS lev08 watershed · #1080031290
Bassin de مجردة
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 23 administrative regions : Bir Mchergua, Borj El Amri, Bouarada, Douar Hicher, El Battan +18
Sub-basin area
2 437,8km²
Upstream area
23 171,7km²
Discharge
67m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de وادي مجردة2717 km²
- Bassin de Oued Siliana2199 km²
23 dept-equivalent regions (GADM L2)
- 370.3 km²15.2% of basin
- 331.4 km²13.6% of basin
- 260.5 km²10.7% of basin
- 213.6 km²8.8% of basin
- Bir McherguaZaghouan · Tunisia158.3 km²6.5% of basin
- 157.1 km²6.4% of basin
- 139.4 km²5.7% of basin
- 135.3 km²5.6% of basin
15 moreFull L2 list
- Borj El Amri129.4 km² · 5.3%
- Kalaat El Andalous128.9 km² · 5.3%
- Tebourba96.3 km² · 3.9%
- Sidi Thabet94.7 km² · 3.9%
- Oued Ellil71.1 km² · 2.9%
- M'Hamdia64.5 km² · 2.6%
- Bouarada36.7 km² · 1.5%
- Sidi Hassine26.6 km² · 1.1%
- Hrairia12.9 km² · 0.5%
- Mnihla7.9 km² · 0.3%
- Manouba2.3 km² · 0.1%
- Laroussa0.5 km² · 0.0%
- Fahs0.4 km² · 0.0%
- Unknown0.3 km² · 0.0%
- Douar Hicher0.1 km² · 0.0%
4 intersecting protected areas
Wetland of International Importance (Ramsar Site)
1.30 km² overlap
Wetland Zone of National Importance
1.30 km² overlap
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland Zone of National Importance
0.09 km² overlap
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
299 distinct species · 1 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 مجردة : 26 espèces reliées par 52 interactions GloBI sur 3 types (connectance 9.3%, filtre Serrano α=0.2). 8 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°
17,7°C
Annual rain
478mm
Moisture idx (CMI)
-0,62
Runoff
139mm/an
PET
1 272mm
AET
406mm
Mean slope
2,6°
Water table
249cm
Forest
1%
Crops
96%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)