HydroBASINS lev08 watershed · #4080721850
Bassin de 大溪河
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 : Changzhou, Nanjing, Xuancheng, Zhenjiang
Sub-basin area
1 349km²
Upstream area
1 349km²
Discharge
18,73m³/s
Mean elev.
20m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1055.4 km²78.3% of basin
- 186.4 km²13.8% of basin
- 102.5 km²7.6% of basin
- 3.6 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
513 distinct species · 945 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 大溪河 : 21 espèces reliées par 22 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 3 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°
15,8°C
Annual rain
1 143mm
Moisture idx (CMI)
0,05
Runoff
439mm/an
PET
1 083mm
AET
967mm
Mean slope
1,0°
Water table
48cm
Forest
15%
Crops
56%
Urban
25%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)