HydroBASINS lev08 watershed · #4080477860
Bassin de 永定河
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 4 administrative regions : Baoding, Beijing, Langfang, Tianjin
Sub-basin area
1 776,7km²
Upstream area
46 523,3km²
Discharge
34,25m³/s
Mean elev.
158m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 永定河610 km²
- Bassin de 清水河577 km²
4 dept-equivalent regions (GADM L2)
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 930 distinct species · 33 751 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 永定河 : 23 espèces reliées par 61 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 10 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°
11,6°C
Annual rain
579mm
Moisture idx (CMI)
-0,45
Runoff
39mm/an
PET
1 060mm
AET
495mm
Mean slope
4,7°
Water table
197cm
Forest
21%
Crops
46%
Urban
30%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)