HydroBASINS lev08 watershed · #2080726790
Bassin · #2080726790
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 4 administrative regions : Arihah, Idlib, Jabal Sam'an, Ma'arrat al-Numan
Sub-basin area
733,2km²
Upstream area
733,2km²
Discharge
4,65m³/s
Mean elev.
491m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 281.6 km²38.4% of basin
- 263.9 km²36.0% of basin
- Ma'arrat al-NumanIdlib · Syria167.5 km²22.8% of basin
- 20.3 km²2.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
416 distinct species · 1 032 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 · #2080726790 : 11 espèces + 2 bulles famille, 9 interactions GloBI documentées sur 2 types (connectance 11.5%, filtre Serrano α=0.2). Les 2 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
16,9°C
Annual rain
432mm
Moisture idx (CMI)
-0,68
Runoff
211mm/an
PET
1 373mm
AET
363mm
Mean slope
2,1°
Water table
169cm
Forest
0%
Crops
52%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)