HydroBASINS lev08 watershed · #4080652620
Bassin de 沙河
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 : Nanyang, Pingdingshan
Sub-basin area
870,9km²
Upstream area
2 282,4km²
Discharge
15,12m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #4080652760530 km²
- Bassin de 沙河133 km²
2 dept-equivalent regions (GADM L2)
- 846.8 km²97.3% of basin
- 23.8 km²2.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
643 distinct species · 1 356 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 沙河 : 12 espèces reliées par 10 interactions GloBI sur 1 type (connectance 11.0%, 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°
14,3°C
Annual rain
736mm
Moisture idx (CMI)
-0,39
Runoff
217mm/an
PET
1 201mm
AET
625mm
Mean slope
3,7°
Water table
209cm
Forest
5%
Crops
30%
Urban
35%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)