HydroBASINS lev08 watershed · #2080997850
Bassin · #2080997850
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 7 administrative regions : Al Ashah, Al Matammah, Bani Suraim, Dhi Bin, Harf Sufyan +2
Sub-basin area
1 519,6km²
Upstream area
1 519,6km²
Discharge
0,1m³/s
Mean elev.
1 837m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Harf SufyanAmran · Yemen840.1 km²55.5% of basin
- 257.9 km²17.0% of basin
- Bani SuraimAmran · Yemen170.1 km²11.2% of basin
- 120.5 km²8.0% of basin
- 85.1 km²5.6% of basin
- 40.4 km²2.7% of basin
- 0.2 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
22 distinct species · 67 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 · #2080997850 : 3 espèces reliées par 4 interactions GloBI sur 2 types (connectance 66.7%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
18,8°C
Annual rain
177mm
Moisture idx (CMI)
-0,89
Runoff
7mm/an
PET
1 693mm
AET
148mm
Mean slope
7,2°
Water table
676cm
Forest
0%
Crops
3%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)