HydroBASINS lev08 watershed · #4081106830
Bassin de แม่น้ำแควน้อย
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 across 2 countries : Hpa-an, Myawady, Sangkhla Buri, Umphang
Sub-basin area
754,5km²
Upstream area
754,8km²
Discharge
16,38m³/s
Mean elev.
659m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 742.1 km²98.7% of basin
- 3.7 km²0.5% of basin
- 3.3 km²0.4% of basin
- 2.8 km²0.4% of basin
3 intersecting protected areas
Um Phang
IUCN IaWildlife Sanctuary
419.38 km² overlap
Thungyai-Huai Kha Khaeng Wildlife Sanctuaries
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
234.00 km² overlap
Thungyai Naresuan
IUCN IaWildlife Sanctuary
226.91 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
106 distinct species · 172 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 แม่น้ำแควน้อย : 9 espèces reliées par 5 interactions GloBI sur 3 types (connectance 13.9%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,1°C
Annual rain
1 804mm
Moisture idx (CMI)
0,11
Runoff
830mm/an
PET
1 607mm
AET
1 028mm
Mean slope
11,1°
Water table
353cm
Forest
55%
Crops
6%
Urban
0%
Protected
86%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)