HydroBASINS lev08 watershed · #4080020890
Bassin de Sungai Selangor
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 : Bentong, Gombak, Hulu Selangor, Kuala Selangor, Raub
Sub-basin area
1 905km²
Upstream area
1 905km²
Discharge
81,93m³/s
Mean elev.
224m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 1238.4 km²65.3% of basin
- 404.7 km²21.3% of basin
- 247.3 km²13.0% of basin
- 4.6 km²0.2% of basin
- 1.6 km²0.1% of basin
18 intersecting protected areas
Selangor State Park
IUCN IIForest Reserve
381.23 km² overlap
Ulu Selangor
IUCN VIForest Reserve
148.16 km² overlap
Bukit Belata
IUCN VIForest Reserve
28.61 km² overlap
Bukit Kutu
IUCN VIWildlife Reserve
19.43 km² overlap
Semangkok
IUCN VIForest Reserve
14.86 km² overlap
Bukit Tarek
IUCN VIForest Reserve
8.42 km² overlap
Templer
IUCN VIForest Reserve
6.52 km² overlap
Rantau Panjang
IUCN VIForest Reserve
3.84 km² overlap
Forest Reserve
3.29 km² overlap
9 more protected areassorted by overlap area
Batu Talam
IUCN IbForest Reserve
3.25 km² overlap
Bukit Tinggi
IUCN IbForest Reserve
1.60 km² overlap
Bukit Tinggi
IUCN VIForest Reserve
1.49 km² overlap
Ulu Gombak
IUCN VIForest Reserve
1.28 km² overlap
Kuala Selangor
IUCN IINature Park
1.20 km² overlap
Ulu Teranum
IUCN IbForest Reserve
0.59 km² overlap
(Ulu) Teranum
IUCN VIForest Reserve
0.55 km² overlap
Kuala Selangor Hill
IUCN VIWildlife Reserve
0.42 km² overlap
Fraser's Hill
IUCN VIWildlife Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 757 distinct species · 55 872 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Selangor : 11 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, 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°
25,9°C
Annual rain
2 598mm
Moisture idx (CMI)
0,34
Runoff
1 286mm/an
PET
1 699mm
AET
1 661mm
Mean slope
6,9°
Water table
195cm
Forest
45%
Crops
28%
Urban
18%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)