HydroBASINS lev08 watershed · #1080031380
Bassin de وادي مليان
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 22 administrative regions : Bargou, Ben Arous, Bir Mchergua, Bouarada, Boumhel +17
Sub-basin area
2 312,6km²
Upstream area
2 312,6km²
Discharge
5,37m³/s
Mean elev.
261m
Administrative coverage
22 dept-equivalent regions (GADM L2)
- 776.2 km²33.6% of basin
- Bir McherguaZaghouan · Tunisia460.2 km²19.9% of basin
- 346.7 km²15.0% of basin
- 214.6 km²9.3% of basin
- 184.6 km²8.0% of basin
- 110.6 km²4.8% of basin
- 71.1 km²3.1% of basin
- 65.3 km²2.8% of basin
14 moreFull L2 list
- Zriba14.4 km² · 0.6%
- Fouchana14.1 km² · 0.6%
- Ezzahra11.7 km² · 0.5%
- Boumhel10.5 km² · 0.5%
- Radès7.3 km² · 0.3%
- Hammamet5.6 km² · 0.2%
- El Mourouj4.3 km² · 0.2%
- Nouvelle Médina4.2 km² · 0.2%
- Nadhour3.7 km² · 0.2%
- Hammam Chott3.3 km² · 0.1%
- Siliana Nord2.5 km² · 0.1%
- Hammam Lif0.9 km² · 0.0%
- Ben Arous0.9 km² · 0.0%
- Goubellat0.1 km² · 0.0%
2 intersecting protected areas
Dj. Zaghouan
IUCN Not AssignedNational Park
11.21 km² overlap
Boukornine
IUCN Not AssignedNational Park
4.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
662 distinct species · 3 407 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 مليان : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 55 interactions GloBI sur 5 types (connectance 6.4%, filtre Serrano α=0.2). 5 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°
17,3°C
Annual rain
470mm
Moisture idx (CMI)
-0,64
Runoff
80mm/an
PET
1 312mm
AET
398mm
Mean slope
3,6°
Water table
334cm
Forest
9%
Crops
80%
Urban
6%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)