HydroBASINS lev08 watershed · #5080004000
Bassin de Sungai Siak
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 2 administrative regions : Bengkalis, Siak
Sub-basin area
740km²
Upstream area
11 645,2km²
Discharge
452,73m³/s
Mean elev.
19m
Administrative coverage
Species present
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,9°C
Annual rain
2 420mm
Moisture idx (CMI)
0,29
Runoff
1 022mm/an
PET
1 708mm
AET
1 658mm
Mean slope
0,7°
Water table
18cm
Forest
51%
Crops
24%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)