HydroBASINS lev08 watershed · #4081131650
Bassin de ស្ទឹងសៀមរាប
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 9 administrative regions : Angkor Thum, Banteay Srei, Prasat Bakong, Siem Reap, Soutr Nikom +3
Sub-basin area
1 553,4km²
Upstream area
1 553,4km²
Discharge
26,6m³/s
Mean elev.
87m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- 566.2 km²36.6% of basin
- 279.8 km²18.1% of basin
- 253.9 km²16.4% of basin
- 175.0 km²11.3% of basin
- 114.4 km²7.4% of basin
- 62.7 km²4.1% of basin
- 51.2 km²3.3% of basin
- 37.8 km²2.4% of basin
1 moreFull L2 list
- Tonlé Sap6.6 km² · 0.4%
4 intersecting protected areas
National Park
303.95 km² overlap
Angkor
IUCN VProtected Landscape
39.67 km² overlap
Tonle Sap
IUCN VIMultiple Use Area
36.42 km² overlap
NorthWest Corridor
IUCN VIBiodiversity Corridor of Protected Area
7.92 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 247 distinct species · 21 357 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 ស្ទឹងសៀមរាប : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 4 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°
26,9°C
Annual rain
1 333mm
Moisture idx (CMI)
-0,19
Runoff
600mm/an
PET
1 639mm
AET
992mm
Mean slope
1,6°
Water table
96cm
Forest
15%
Crops
27%
Urban
3%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)