HydroBASINS lev08 watershed · #4080220950
Bassin de 七星河
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 : Jiamusi, Qitaihe, Shuangyashan
Sub-basin area
593,9km²
Upstream area
594km²
Discharge
2,3m³/s
Mean elev.
306m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Shuangyashan572.4 km²96.1% of basin
- Qitaihe22.9 km²3.8% of basin
- Jiamusi0.1 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
2,6°C
Annual rain
566mm
Moisture idx (CMI)
-0,26
Runoff
133mm/an
PET
769mm
AET
485mm
Mean slope
7,5°
Water table
151cm
Forest
71%
Crops
29%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)