HydroBASINS lev08 watershed · #4080996040
Bassin de Sông Bằng
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 6 administrative regions across 2 countries : Cao Bằng, Chongzuo, Hoà An, Phục Hoà, Quảng Uyên +1
Sub-basin area
584,5km²
Upstream area
3 895,6km²
Discharge
78,09m³/s
Mean elev.
380m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin de Sông Hiến928 km²
- Bassin de Suối Củn430 km²
- Bassin de Sông Bằng215 km²
6 dept-equivalent regions (GADM L2)
- 155.1 km²26.6% of basin
- 151.6 km²26.0% of basin
- Quảng UyênCao Bằng · Vietnam147.9 km²25.4% of basin
- 83.2 km²14.3% of basin
- 43.0 km²7.4% of basin
- 2.3 km²0.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
211 distinct species · 372 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Bằng : 20 espèces reliées par 21 interactions GloBI sur 4 types (connectance 7.0%, filtre Serrano α=0.2). 5 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°
21,8°C
Annual rain
1 460mm
Moisture idx (CMI)
0,07
Runoff
567mm/an
PET
1 350mm
AET
1 078mm
Mean slope
13,6°
Water table
451cm
Forest
1%
Crops
14%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)