HydroBASINS lev08 watershed · #5080132460
Bassin de Binanga Mual
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 5 administrative regions : Humbang Hasundutan, Lake Toba, Samosir, Tapanuli Utara, Toba Samosir
Sub-basin area
1 415,5km²
Upstream area
1 415,7km²
Discharge
54,16m³/s
Mean elev.
1 285m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 620.7 km²44.0% of basin
- 391.6 km²27.8% of basin
- Lake Toba294.7 km²20.9% of basin
- 66.3 km²4.7% of basin
- 35.9 km²2.5% of basin
1 intersecting protected areas
Sijaba Hutaginjang
IUCN VNature Recreation Park
3.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
433 distinct species · 724 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 52 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 Binanga Mual : 46 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 4 types (connectance 3.2%, filtre Serrano α=0.2). 6 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°
19,8°C
Annual rain
2 162mm
Moisture idx (CMI)
0,32
Runoff
1 213mm/an
PET
1 472mm
AET
1 405mm
Mean slope
6,4°
Water table
238cm
Forest
22%
Crops
36%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)