HydroBASINS lev08 watershed · #4081043590
Bassin de ນ້ຳອູ
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 : Nambak, Nga, Ngoi, Pak Xeng, Park Ou
Sub-basin area
817,4km²
Upstream area
26 058km²
Discharge
624,74m³/s
Mean elev.
640m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de ນຳ້ງາ2680 km²
- Bassin de ນ້ຳອູ653 km²
5 dept-equivalent regions (GADM L2)
- 615.5 km²75.5% of basin
- 109.0 km²13.4% of basin
- 82.9 km²10.2% of basin
- 7.2 km²0.9% of basin
- 0.5 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
56 distinct species · 497 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 ນ້ຳອູ : 18 espèces reliées par 12 interactions GloBI sur 4 types (connectance 7.8%, 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°
23,3°C
Annual rain
1 459mm
Moisture idx (CMI)
-0,10
Runoff
335mm/an
PET
1 620mm
AET
1 038mm
Mean slope
15,4°
Water table
608cm
Forest
3%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)