HydroBASINS lev08 watershed · #5080169580
Bassin de Sungai Kahayan
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, Palangka Raya, Pulang Pisau
Sub-basin area
763,1km²
Upstream area
12 936km²
Discharge
680,12m³/s
Mean elev.
21m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sungai Kahayan1392 km²
- Bassin de Sungai Rungan470 km²
3 dept-equivalent regions (GADM L2)
- 391.9 km²51.6% of basin
- 322.4 km²42.4% of basin
- 45.4 km²6.0% of basin
3 intersecting protected areas
Bukit Rawi (Eks PLG II)
IUCN Not ReportedUndesigned
7.76 km² overlap
Sebangau
IUCN IINational Park
1.61 km² overlap
Sungai Barito
IUCN IaUndesigned
0.99 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
312 distinct species · 1 322 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Kahayan : 24 espèces reliées par 21 interactions GloBI sur 3 types (connectance 5.2%, filtre Serrano α=0.2). 5 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°
26,6°C
Annual rain
2 592mm
Moisture idx (CMI)
0,39
Runoff
1 220mm/an
PET
1 568mm
AET
1 519mm
Mean slope
0,2°
Water table
12cm
Forest
56%
Crops
18%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)