HydroBASINS lev08 watershed · #4081083240
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 4 administrative regions : Laplae, Si Satchanalai, Thoen, Wang Chin
Sub-basin area
1 106,9km²
Upstream area
12 645,4km²
Discharge
33,56m³/s
Mean elev.
221m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de แม่น้ำยม1574 km²
- Bassin de แม่น้ำยม527 km²
4 dept-equivalent regions (GADM L2)
- 1095.6 km²99.3% of basin
- 6.5 km²0.6% of basin
- 1.1 km²0.1% of basin
- 0.1 km²0.0% of basin
1 intersecting protected areas
Sri Satchanalai
IUCN IINational Park
122.40 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
305 distinct species · 2 509 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 25 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 3 types (connectance 8.2%, filtre Serrano α=0.2). 9 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°
26,8°C
Annual rain
1 162mm
Moisture idx (CMI)
-0,35
Runoff
104mm/an
PET
1 787mm
AET
965mm
Mean slope
7,6°
Water table
422cm
Forest
28%
Crops
20%
Urban
2%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)