HydroBASINS lev08 watershed · #4081039500
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 3 administrative regions : Nambak, Ngoi, Pak Xeng
Sub-basin area
653,3km²
Upstream area
22 560,1km²
Discharge
599,57m³/s
Mean elev.
660m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de ນຳ້ບາກ1725 km²
- Bassin de ນ້ຳອູ787 km²
3 dept-equivalent regions (GADM L2)
- 466.0 km²71.5% of basin
- 94.6 km²14.5% of basin
- 90.8 km²13.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
137 distinct species · 189 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 4 types (connectance 7.9%, filtre Serrano α=0.2). 7 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°
22,8°C
Annual rain
1 512mm
Moisture idx (CMI)
-0,04
Runoff
363mm/an
PET
1 585mm
AET
1 027mm
Mean slope
16,2°
Water table
573cm
Forest
2%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)