HydroBASINS lev08 watershed · #4080997740
Bassin de 左江
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 across 2 countries : Chongzuo, Hạ Lang, Trùng Khánh
Sub-basin area
1 154,1km²
Upstream area
20 562,6km²
Discharge
409,19m³/s
Mean elev.
325m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 左江585 km²
- Bassin de 明江282 km²
3 dept-equivalent regions (GADM L2)
- 896.8 km²77.9% of basin
- 245.2 km²21.3% of basin
- Trùng KhánhCao Bằng · Vietnam9.1 km²0.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 008 distinct species · 12 951 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 左江 : 19 espèces reliées par 26 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 6 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°
22,0°C
Annual rain
1 417mm
Moisture idx (CMI)
0,05
Runoff
510mm/an
PET
1 340mm
AET
1 082mm
Mean slope
11,8°
Water table
357cm
Forest
26%
Crops
20%
Urban
2%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)