HydroBASINS lev08 watershed · #4080773130
Bassin de 长河
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 3 administrative regions : Huanggang, Huangshi, Jiujiang
Sub-basin area
2 322,9km²
Upstream area
1 493 199,4km²
Discharge
22 722,32m³/s
Mean elev.
116m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 富水河1157 km²
- Bassin de 长江251 km²
3 dept-equivalent regions (GADM L2)
- 1880.7 km²81.1% of basin
- 418.5 km²18.0% of basin
- 20.9 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 155 distinct species · 26 747 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 长河 : 22 espèces reliées par 20 interactions GloBI sur 3 types (connectance 5.7%, 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°
16,8°C
Annual rain
1 481mm
Moisture idx (CMI)
0,24
Runoff
1 011mm/an
PET
1 120mm
AET
1 066mm
Mean slope
5,9°
Water table
199cm
Forest
27%
Crops
37%
Urban
32%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)