HydroBASINS lev08 watershed · #4080753740
Bassin de 西河
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
1 351km²
Upstream area
1 351,4km²
Discharge
30,76m³/s
Mean elev.
2 860m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 1342.6 km²99.5% of basin
- 7.1 km²0.5% of basin
2 intersecting protected areas
Sichuan Giant Panda Sanctuaries - Wolong, Mt Siguniang and Jiajin Mountains
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1139.67 km² overlap
Wolong Nature Reserve
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
523.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
507 distinct species · 2 216 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 西河 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 4 types (connectance 5.6%, 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°
7,2°C
Annual rain
975mm
Moisture idx (CMI)
0,11
Runoff
702mm/an
PET
858mm
AET
723mm
Mean slope
29,5°
Water table
962cm
Forest
63%
Crops
4%
Urban
0%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)