HydroBASINS lev08 watershed · #4080987660
Bassin de Sông Quây Sơn
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 across 2 countries : Baise, Chongzuo, Hạ Lang, Trùng Khánh
Sub-basin area
245,4km²
Upstream area
2 781,7km²
Discharge
55,26m³/s
Mean elev.
515m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 鹅泉河576 km²
- Bassin · #4080985840501 km²
4 dept-equivalent regions (GADM L2)
- Trùng KhánhCao Bằng · Vietnam151.0 km²61.7% of basin
- 51.5 km²21.0% of basin
- 36.0 km²14.7% of basin
- 6.3 km²2.6% of basin
1 intersecting protected areas
Trung Khanh
IUCN IVNature Reserve
1.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
140 distinct species · 290 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Quây Sơn : 26 espèces reliées par 30 interactions GloBI sur 4 types (connectance 6.5%, 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°
21,0°C
Annual rain
1 468mm
Moisture idx (CMI)
0,11
Runoff
551mm/an
PET
1 311mm
AET
1 063mm
Mean slope
11,8°
Water table
403cm
Forest
20%
Crops
16%
Urban
4%
Protected
26%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)