HydroBASINS lev08 watershed · #4081039180
Bassin de น้ำแม่สาย
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 7 administrative regions across 2 countries : Chiang Saen, Mae Chan, Mae Fa Luang, Mae Sai, Mongphat +2
Sub-basin area
2 821,3km²
Upstream area
2 821,3km²
Discharge
43,99m³/s
Mean elev.
774m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 1643.3 km²58.4% of basin
- 671.2 km²23.9% of basin
- Mae Sai292.7 km²10.4% of basin
- 126.7 km²4.5% of basin
- 40.3 km²1.4% of basin
- Mae Chan20.8 km²0.7% of basin
- Mae Fa Luang18.3 km²0.7% of basin
1 intersecting protected areas
Parsar Protected Area
IUCN IVNational Park
2.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 605 distinct species · 8 795 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 น้ำแม่สาย : 13 espèces reliées par 15 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2). 4 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°
22,9°C
Annual rain
1 490mm
Moisture idx (CMI)
-0,08
Runoff
494mm/an
PET
1 622mm
AET
1 041mm
Mean slope
10,4°
Water table
352cm
Forest
4%
Crops
21%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)