HydroBASINS lev08 watershed · #4081045050
Bassin de Nam Pa
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 : Louangphrabang, Pak Xeng, Park Ou, Phonxay
Sub-basin area
763,1km²
Upstream area
763,1km²
Discharge
12,64m³/s
Mean elev.
890m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 537.2 km²70.6% of basin
- LouangphrabangLouangphrabang · Laos143.0 km²18.8% of basin
- 70.0 km²9.2% of basin
- 10.7 km²1.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
38 distinct species · 94 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 Pa : 4 espèces reliées par 3 interactions GloBI sur 2 types (connectance 50.0%, 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°
21,9°C
Annual rain
1 569mm
Moisture idx (CMI)
0,02
Runoff
524mm/an
PET
1 544mm
AET
1 025mm
Mean slope
17,8°
Water table
611cm
Forest
4%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)