HydroBASINS lev08 watershed · #5080003520
Bassin de Sungai Asahan
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 : Asahan, Kota Tanjungbalai
Sub-basin area
581,5km²
Upstream area
5 631,9km²
Discharge
202,65m³/s
Mean elev.
12m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Sungai Asahan225 km²
- Bassin de Sungai Asahan182 km²
2 dept-equivalent regions (GADM L2)
- 556.0 km²96.0% of basin
- 22.9 km²4.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
48 distinct species · 54 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Sungai Asahan : 13 espèces reliées par 10 interactions GloBI sur 2 types (connectance 9.5%, filtre Serrano α=0.2). 2 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°
26,7°C
Annual rain
1 951mm
Moisture idx (CMI)
0,14
Runoff
947mm/an
PET
1 681mm
AET
1 458mm
Mean slope
0,4°
Water table
10cm
Forest
20%
Crops
40%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)