HydroBASINS lev08 watershed · #4080015420
Bassin de Sông Rào Nậy
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 : Ba Đồn, Quảng Trạch, Tuyên Hóa
Sub-basin area
277,9km²
Upstream area
3 040,5km²
Discharge
131,7m³/s
Mean elev.
69m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Sông Rào Trổ540 km²
- Bassin de Sông Rào Nậy268 km²
3 dept-equivalent regions (GADM L2)
- 131.1 km²47.3% of basin
- 94.8 km²34.2% of basin
- Ba Đồn51.1 km²18.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
20 distinct species · 26 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 5 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 Rào Nậy : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 30.0%, 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°
25,0°C
Annual rain
2 561mm
Moisture idx (CMI)
0,48
Runoff
1 412mm/an
PET
1 335mm
AET
1 179mm
Mean slope
5,4°
Water table
212cm
Forest
7%
Crops
87%
Urban
18%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)