HydroBASINS lev08 watershed · #4080643680
Bassin de 西汉水
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 : Dingxi, Longnan
Sub-basin area
621,9km²
Upstream area
621,9km²
Discharge
5,5m³/s
Mean elev.
2 281m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 617.9 km²99.4% of basin
- 3.8 km²0.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
7,2°C
Annual rain
635mm
Moisture idx (CMI)
-0,28
Runoff
244mm/an
PET
893mm
AET
542mm
Mean slope
16,7°
Water table
581cm
Forest
56%
Crops
33%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)