HydroBASINS lev08 watershed · #4080489140
Bassin de 子牙河
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 : Cangzhou, Langfang, Tianjin
Sub-basin area
1 874km²
Upstream area
53 484,6km²
Discharge
78,51m³/s
Mean elev.
10m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 滹沱河2557 km²
- Bassin de 滏阳新河48 km²
3 dept-equivalent regions (GADM L2)
- 1215.8 km²64.8% of basin
- 520.5 km²27.8% of basin
- TianjinTianjin · China139.1 km²7.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
39 distinct species · 54 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 子牙河 : 15 espèces reliées par 12 interactions GloBI sur 4 types (connectance 10.0%, 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°
12,9°C
Annual rain
471mm
Moisture idx (CMI)
-0,57
Runoff
22mm/an
PET
1 093mm
AET
404mm
Mean slope
0,0°
Water table
5cm
Forest
1%
Crops
63%
Urban
31%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)