HydroBASINS lev08 watershed · #4080491440
Bassin de 大沙河
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 : Baoding, Cangzhou
Sub-basin area
105,6km²
Upstream area
18 121,3km²
Discharge
29,02m³/s
Mean elev.
7m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 孝义河2341 km²
- Bassin de 大沙河833 km²
2 dept-equivalent regions (GADM L2)
- 79.8 km²75.4% of basin
- 26.0 km²24.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
29 distinct species · 34 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 大沙河 : 14 espèces reliées par 10 interactions GloBI sur 2 types (connectance 9.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
12,8°C
Annual rain
482mm
Moisture idx (CMI)
-0,57
Runoff
26mm/an
PET
1 111mm
AET
413mm
Mean slope
0,1°
Water table
9cm
Forest
34%
Crops
45%
Urban
43%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)