HydroBASINS lev08 watershed · #4080060240
Bassin de Nam Bout-Nua
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 : Hinboon, Khamkheuth, Nakai, Nhommalath, Thakhek
Sub-basin area
1 227,3km²
Upstream area
1 227,3km²
Discharge
15,65m³/s
Mean elev.
455m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 593.6 km²48.5% of basin
- 383.7 km²31.4% of basin
- 209.1 km²17.1% of basin
- 31.4 km²2.6% of basin
- 5.5 km²0.5% of basin
2 intersecting protected areas
Phou Hin Poun
IUCN VINational Protected Area
956.69 km² overlap
Nakai-Nam Teun
IUCN IINational Park
116.11 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
91 distinct species · 186 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Nam Bout-Nua : 22 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 2 types (connectance 6.1%, 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°
23,7°C
Annual rain
2 602mm
Moisture idx (CMI)
0,42
Runoff
1 013mm/an
PET
1 517mm
AET
1 043mm
Mean slope
14,8°
Water table
521cm
Forest
27%
Crops
2%
Urban
0%
Protected
89%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)