HydroBASINS lev08 watershed · #4080414470
Bassin de 大凌河西支
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 : Chaoyang, Chengde, Chifeng
Sub-basin area
2 277km²
Upstream area
2 277km²
Discharge
5,72m³/s
Mean elev.
605m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1421.2 km²62.3% of basin
- Chifeng433.8 km²19.0% of basin
- 425.1 km²18.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
941 distinct species · 2 546 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 大凌河西支 : 18 espèces reliées par 33 interactions GloBI sur 5 types (connectance 13.0%, filtre Serrano α=0.2). 5 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°
7,0°C
Annual rain
560mm
Moisture idx (CMI)
-0,41
Runoff
80mm/an
PET
953mm
AET
481mm
Mean slope
8,7°
Water table
356cm
Forest
5%
Crops
17%
Urban
5%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)