HydroBASINS lev08 watershed · #4081079370
Bassin de ลำน้ำยาม
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 10 administrative regions : Akat Amnuai, Chareon Silp, Kham Ta Kla, Na Wa, Phanna Nikhom +5
Sub-basin area
1 769,4km²
Upstream area
1 769,6km²
Discharge
52,72m³/s
Mean elev.
172m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- Wanon Niwat684.0 km²38.8% of basin
- 392.1 km²22.2% of basin
- Sawang Daen Din223.1 km²12.6% of basin
- Song Dao146.2 km²8.3% of basin
- 131.8 km²7.5% of basin
- Waritchaphum62.4 km²3.5% of basin
- 57.3 km²3.3% of basin
- Si Songkhram34.3 km²1.9% of basin
2 moreFull L2 list
- Phanna Nikhom19.0 km² · 1.1%
- Kham Ta Kla13.5 km² · 0.8%
2 intersecting protected areas
Phu Pha Lek
IUCN IINational Park
21.95 km² overlap
Lower Songkhram River
IUCN IVWetland of International Importance (Ramsar Site)
0.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
307 distinct species · 833 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 ลำน้ำยาม : 29 espèces reliées par 40 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 6 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°
26,0°C
Annual rain
2 018mm
Moisture idx (CMI)
0,19
Runoff
941mm/an
PET
1 619mm
AET
1 069mm
Mean slope
0,7°
Water table
34cm
Forest
0%
Crops
44%
Urban
2%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)