HydroBASINS lev08 watershed · #4080980490
Bassin de 南山河
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 2 administrative regions : Yunfu, Zhaoqing
Sub-basin area
719,2km²
Upstream area
333 375,5km²
Discharge
7 180,86m³/s
Mean elev.
181m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 马圩河656 km²
- Bassin de 西江5 km²
2 dept-equivalent regions (GADM L2)
- 515.0 km²71.8% of basin
- 202.5 km²28.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
797 distinct species · 2 174 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 南山河 : 8 espèces reliées par 8 interactions GloBI sur 3 types (connectance 17.8%, filtre Serrano α=0.2). 2 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 584mm
Moisture idx (CMI)
0,19
Runoff
827mm/an
PET
1 284mm
AET
1 135mm
Mean slope
11,9°
Water table
402cm
Forest
54%
Crops
13%
Urban
20%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)