HydroBASINS lev08 watershed · #1080045300
Bassin de Oued El Gourzi
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 34 administrative regions : Ain Djasser, Ain El Kercha, Ain M'Lila, Ain Yagout, Batna +29
Sub-basin area
2 581,6km²
Upstream area
2 581,6km²
Discharge
0m³/s
Mean elev.
960m
Administrative coverage
34 dept-equivalent regions (GADM L2)
- Zanet El BeidaBatna · Algeria218.6 km²8.5% of basin
- Souk NaamaneOum el Bouaghi · Algeria184.1 km²7.1% of basin
- 172.9 km²6.7% of basin
- Bir ChouhadaOum el Bouaghi · Algeria164.6 km²6.4% of basin
- 162.0 km²6.3% of basin
- Ain YagoutBatna · Algeria154.9 km²6.0% of basin
- Ouled ZaouiOum el Bouaghi · Algeria136.4 km²5.3% of basin
- Ain DjasserBatna · Algeria129.0 km²5.0% of basin
26 moreFull L2 list
- Ouled Khelouf125.5 km² · 4.9%
- Batna109.0 km² · 4.2%
- El Harmilia106.9 km² · 4.1%
- Djerma99.8 km² · 3.9%
- Ain El Kercha90.2 km² · 3.5%
- El Madher89.0 km² · 3.4%
- Fesdis86.1 km² · 3.3%
- Ouled Sellem83.4 km² · 3.2%
- Tazoult78.3 km² · 3.0%
- Oued Chaaba72.4 km² · 2.8%
- El Hassi59.7 km² · 2.3%
- Ouyoun El Assafir58.5 km² · 2.3%
- Taya54.4 km² · 2.1%
- Oued El Ma40.3 km² · 1.6%
- Boumia28.5 km² · 1.1%
- El Mechira26.7 km² · 1.0%
- Ksar Bellezma17.7 km² · 0.7%
- Talkhamt15.4 km² · 0.6%
- Tadjenanet6.2 km² · 0.2%
- Beni Foudala El Hakania5.4 km² · 0.2%
- Hanchir Toumghani2.3 km² · 0.1%
- El Fedjoudj Boughrara Saoudi1.4 km² · 0.1%
- Timgad1.2 km² · 0.0%
- Ain M'Lila0.8 km² · 0.0%
- Hammam Soukhna0.3 km² · 0.0%
- Boulhilat0.1 km² · 0.0%
5 intersecting protected areas
Belezma
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
193.87 km² overlap
Belezma
IUCN IINational Park
141.56 km² overlap
Sebkha Ezzemoul
IUCN Not ReportedWetland of International Importance (Ramsar Site)
53.55 km² overlap
Chott Tinsilt
IUCN Not ReportedWetland of International Importance (Ramsar Site)
22.02 km² overlap
Chott El Beïdha-Hammam Essoukhna
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
690 distinct species · 1 904 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 El Gourzi : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 3 types (connectance 8.9%, 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°
13,9°C
Annual rain
382mm
Moisture idx (CMI)
-0,69
Runoff
24mm/an
PET
1 228mm
AET
327mm
Mean slope
4,4°
Water table
321cm
Forest
4%
Crops
19%
Urban
4%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)