HydroBASINS lev08 watershed · #4081030160
Bassin de ນຳ້ມາ
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 : Long, Namtha, Sing, Viengphoukha
Sub-basin area
1 059,9km²
Upstream area
1 060,2km²
Discharge
18,99m³/s
Mean elev.
1 041m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 895.1 km²84.7% of basin
- 135.7 km²12.8% of basin
- 18.2 km²1.7% of basin
- 8.0 km²0.8% of basin
2 intersecting protected areas
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
116 distinct species · 636 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 ນຳ້ມາ : 15 espèces reliées par 12 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
21,0°C
Annual rain
1 690mm
Moisture idx (CMI)
0,09
Runoff
564mm/an
PET
1 534mm
AET
1 076mm
Mean slope
15,3°
Water table
480cm
Forest
0%
Crops
3%
Urban
0%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)