HydroBASINS lev08 watershed · #4080782650
Bassin de 大渡河
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 2 administrative regions : Garzê Tibetan, Ya'an
Sub-basin area
2 176,4km²
Upstream area
60 740,4km²
Discharge
752,55m³/s
Mean elev.
3 142m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de 雅拉河1569 km²
- Bassin de 大渡河524 km²
2 dept-equivalent regions (GADM L2)
- 2085.8 km²95.9% of basin
- 88.0 km²4.1% of basin
1 intersecting protected areas
Sichuan Giant Panda Sanctuaries - Wolong, Mt Siguniang and Jiajin Mountains
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
69.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 079 distinct species · 27 699 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 大渡河 : 23 espèces reliées par 27 interactions GloBI sur 3 types (connectance 8.3%, 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°
6,2°C
Annual rain
981mm
Moisture idx (CMI)
0,12
Runoff
625mm/an
PET
850mm
AET
686mm
Mean slope
29,3°
Water table
996cm
Forest
49%
Crops
5%
Urban
0%
Protected
61%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)