HydroBASINS lev08 watershed · #4081087810
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 2 administrative regions : Dan Sai, Nakhon Thai
Sub-basin area
242,4km²
Upstream area
1 089,3km²
Discharge
10,38m³/s
Mean elev.
419m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de แม่น้ำแควน้อย450 km²
- Bassin de ห้วยน้ำเฟี้ย397 km²
2 dept-equivalent regions (GADM L2)
- Nakhon Thai240.2 km²99.4% of basin
- 1.5 km²0.6% of basin
2 intersecting protected areas
Phu Hin Rong Kla
IUCN IINational Park
65.48 km² overlap
Namtok Chat Trakan
IUCN IINational Park
20.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
217 distinct species · 474 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 : 28 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 5.0%, filtre Serrano α=0.2). 7 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°
25,6°C
Annual rain
1 201mm
Moisture idx (CMI)
-0,32
Runoff
267mm/an
PET
1 756mm
AET
988mm
Mean slope
4,8°
Water table
218cm
Forest
33%
Crops
22%
Urban
7%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)