HydroBASINS lev08 watershed · #4081005660
Bassin de Sông Đà
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 : Mường Chà, Nậm Nhùn, Nậm Pồ, Thị Xã Mường Lay
Sub-basin area
815,4km²
Upstream area
26 319,2km²
Discharge
647,97m³/s
Mean elev.
840m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nậm Nhé2473 km²
- Bassin de Sông Đà400 km²
4 dept-equivalent regions (GADM L2)
- Nậm NhùnLai Châu · Vietnam330.3 km²40.6% of basin
- Mường ChàĐiện Biên · Vietnam280.5 km²34.5% of basin
- Thị Xã Mường LayĐiện Biên · Vietnam111.8 km²13.7% of basin
- 90.7 km²11.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
101 distinct species · 252 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 Sông Đà : 9 espèces reliées par 8 interactions GloBI sur 2 types (connectance 14.5%, filtre Serrano α=0.2). 2 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°
20,8°C
Annual rain
1 749mm
Moisture idx (CMI)
0,20
Runoff
1 036mm/an
PET
1 404mm
AET
1 049mm
Mean slope
20,6°
Water table
683cm
Forest
9%
Crops
2%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)