HydroBASINS lev08 watershed · #4080808300
Bassin de 沅江
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 : Huaihua, Xiangxi Tujia and Miao, Zhangjiajie
Sub-basin area
1 715,1km²
Upstream area
80 932,6km²
Discharge
1 819,61m³/s
Mean elev.
388m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 沅江69 km²
- Bassin de 酉水58 km²
3 dept-equivalent regions (GADM L2)
- 1505.8 km²87.9% of basin
- 204.0 km²11.9% of basin
- 3.0 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 73 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 沅江 : 4 espèces reliées par 3 interactions GloBI sur 2 types (connectance 50.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
16,1°C
Annual rain
1 454mm
Moisture idx (CMI)
0,23
Runoff
693mm/an
PET
1 118mm
AET
1 070mm
Mean slope
15,7°
Water table
539cm
Forest
42%
Crops
7%
Urban
1%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)