HydroBASINS lev08 watershed · #4081079580
Bassin de แม่น้ำยม
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 : Long, Mae Mo, Mae Tha, Si Satchanalai, Sop Prap +2
Sub-basin area
1 574,4km²
Upstream area
11 011,4km²
Discharge
30,12m³/s
Mean elev.
279m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de แม่น้ำยม1841 km²
- Bassin de ห้วยแม่ต้า533 km²
7 dept-equivalent regions (GADM L2)
- 722.6 km²46.0% of basin
- 667.3 km²42.5% of basin
- 131.6 km²8.4% of basin
- 17.6 km²1.1% of basin
- 15.5 km²1.0% of basin
- 7.5 km²0.5% of basin
- 7.2 km²0.5% of basin
2 intersecting protected areas
Wiang Kosai
IUCN IINational Park
245.64 km² overlap
Doi Phaklong
IUCN IINational Park
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
890 distinct species · 1 556 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 แม่น้ำยม : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
26,4°C
Annual rain
1 111mm
Moisture idx (CMI)
-0,38
Runoff
68mm/an
PET
1 786mm
AET
934mm
Mean slope
8,0°
Water table
434cm
Forest
41%
Crops
9%
Urban
2%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)