HydroBASINS lev08 watershed · #4080440410
Bassin de 青龙河
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 : Chaoyang, Chengde, Huludao, Qinhuangdao
Sub-basin area
1 985,1km²
Upstream area
2 845,7km²
Discharge
11,06m³/s
Mean elev.
532m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 青龙河484 km²
- Bassin de 青龙河377 km²
4 dept-equivalent regions (GADM L2)
- 850.3 km²42.8% of basin
- 527.0 km²26.5% of basin
- 470.8 km²23.7% of basin
- 139.5 km²7.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
108 distinct species · 733 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 青龙河 : 18 espèces reliées par 36 interactions GloBI sur 3 types (connectance 10.3%, filtre Serrano α=0.2). 9 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°
7,6°C
Annual rain
663mm
Moisture idx (CMI)
-0,30
Runoff
125mm/an
PET
952mm
AET
566mm
Mean slope
12,0°
Water table
474cm
Forest
37%
Crops
23%
Urban
4%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)