HydroBASINS lev08 watershed · #4081012160
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 4 administrative regions across 2 countries : Mường Nhé, Nậm Pồ, Phongsaly, Samphanh
Sub-basin area
1 225,3km²
Upstream area
4 704,6km²
Discharge
177,58m³/s
Mean elev.
952m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de ນຳ້ຄາງ1121 km²
- Bassin de ນ້ຳອູ547 km²
4 dept-equivalent regions (GADM L2)
- 1025.6 km²83.9% of basin
- 196.0 km²16.0% of basin
- Mường NhéĐiện Biên · Vietnam0.5 km²0.0% of basin
- 0.0 km²0.0% of basin
2 intersecting protected areas
Phou Daen Din
IUCN VINational Protected Area
794.71 km² overlap
Muong Nhe
IUCN IVNature Reserve
6.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
102 distinct species · 162 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 7.8%, filtre Serrano α=0.2). 3 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°
20,5°C
Annual rain
1 681mm
Moisture idx (CMI)
0,14
Runoff
1 041mm/an
PET
1 447mm
AET
1 077mm
Mean slope
16,9°
Water table
518cm
Forest
12%
Crops
3%
Urban
0%
Protected
65%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)