HydroBASINS lev08 watershed · #4080989460

Bassin de 斋河 Sông Chảy

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 across 2 countries : Mường Khương, Si Ma Cai, Wenshan Zhuang and Miao

Pfafstetter: 43682205

Sub-basin area

99,5km²

Upstream area

1 684,1km²

Discharge

64,85m³/s

Mean elev.

1 144m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sông Chảy2329 km²

▲ Receives from 2 basins

Bassin de Sông Chảy489 km²
Bassin de 白河385 km²

3 dept-equivalent regions (GADM L2)

Wenshan Zhuang and Miao
Yunnan · China
79.6 km²
80.1% of basin
Si Ma Cai
Lào Cai · Vietnam
19.7 km²
19.8% of basin
Mường Khương
Lào Cai · Vietnam
0.0 km²
0.0% 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°

18,2°C

Annual rain

1 617mm

Moisture idx (CMI)

0,28

Runoff

1 038mm/an

PET

1 159mm

AET

972mm

Mean slope

21,9°

Water table

781cm

Forest

Crops

31%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)