HydroBASINS lev08 watershed · #5080143940
Bassin de Sungai Mahakam
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 3 administrative regions : Kapuas Hulu, Kutai Barat, Murung Raya
Sub-basin area
1 967,8km²
Upstream area
4 598,5km²
Discharge
376,47m³/s
Mean elev.
612m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sungai Mahakam2127 km²
- Bassin · #5080141810503 km²
3 dept-equivalent regions (GADM L2)
- 1908.7 km²97.4% of basin
- 33.0 km²1.7% of basin
- 17.3 km²0.9% of basin
2 intersecting protected areas
Bukit Sapat Hawung
IUCN IaNature Reserve
14.93 km² overlap
Betung Kerihun
IUCN IINational Park
12.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
309 distinct species · 624 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 Mahakam : 12 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 7 interactions GloBI sur 3 types (connectance 10.6%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
23,5°C
Annual rain
3 824mm
Moisture idx (CMI)
0,62
Runoff
2 418mm/an
PET
1 443mm
AET
1 443mm
Mean slope
14,2°
Water table
367cm
Forest
95%
Crops
11%
Urban
0%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)