HydroBASINS lev08 watershed · #4080719270
Bassin de 西河
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 : Guangyuan, Mianyang, Nanchong
Sub-basin area
1 114,4km²
Upstream area
1 792,1km²
Discharge
28,71m³/s
Mean elev.
575m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 西河427 km²
- Bassin de 西河250 km²
3 dept-equivalent regions (GADM L2)
- 727.3 km²65.3% of basin
- 378.9 km²34.0% of basin
- 7.4 km²0.7% 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 4 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 西河 : 4 espèces reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
16,6°C
Annual rain
971mm
Moisture idx (CMI)
-0,11
Runoff
514mm/an
PET
1 090mm
AET
807mm
Mean slope
12,2°
Water table
449cm
Forest
23%
Crops
44%
Urban
2%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)