HydroBASINS lev08 watershed · #4080006960
Bassin de 大汤河
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 : Qinhuangdao
Sub-basin area
482,7km²
Upstream area
482,7km²
Discharge
0,66m³/s
Mean elev.
85m
Species present
1 102 distinct species · 32 469 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 大汤河 : 15 espèces reliées par 35 interactions GloBI sur 2 types (connectance 12.7%, 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°
9,7°C
Annual rain
662mm
Moisture idx (CMI)
-0,32
Runoff
128mm/an
PET
977mm
AET
564mm
Mean slope
3,8°
Water table
189cm
Forest
34%
Crops
44%
Urban
55%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)