HydroBASINS lev08 watershed · #4080007410
Bassin de 海河
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 1 administrative regions : Tianjin
Sub-basin area
1 074,7km²
Upstream area
211 331,1km²
Discharge
288,91m³/s
Mean elev.
3m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 3 basins
- Bassin de 南水北调中线天津干线1663 km²
- Bassin de 北运河191 km²
- Bassin · #4080051890109 km²
1 dept-equivalent regions (GADM L2)
- TianjinTianjin · China1075.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 391 distinct species · 20 273 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 海河 : 27 espèces reliées par 63 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 8 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°
12,3°C
Annual rain
558mm
Moisture idx (CMI)
-0,46
Runoff
57mm/an
PET
1 039mm
AET
478mm
Mean slope
0,1°
Water table
6cm
Forest
0%
Crops
34%
Urban
83%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)