HydroBASINS lev08 watershed · #4081118140
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 3 administrative regions : Nong Prue, Si Sawat, Thong Pha Phum
Sub-basin area
918,7km²
Upstream area
8 992,8km²
Discharge
71,93m³/s
Mean elev.
463m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de แม่น้ำแควน้อย2382 km²
- Bassin de แม่น้ำแควน้อย1530 km²
3 dept-equivalent regions (GADM L2)
- 912.7 km²99.7% of basin
- 2.4 km²0.3% of basin
- 0.3 km²0.0% of basin
5 intersecting protected areas
Khuen Si Nakarin
IUCN IINational Park
478.10 km² overlap
Chalearm Rattanakosin
IUCN IINational Park
18.84 km² overlap
Khlong Lamngu
IUCN IINational Park
7.48 km² overlap
Salak Phra
IUCN IaWildlife Sanctuary
0.28 km² overlap
Thungyai Naresuan
IUCN IaWildlife Sanctuary
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
555 distinct species · 993 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 : 36 espèces reliées par 37 interactions GloBI sur 4 types (connectance 4.3%, 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°
25,1°C
Annual rain
1 697mm
Moisture idx (CMI)
0,02
Runoff
690mm/an
PET
1 647mm
AET
1 061mm
Mean slope
11,7°
Water table
406cm
Forest
28%
Crops
8%
Urban
0%
Protected
55%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)