HydroBASINS lev08 watershed · #4081122110
Bassin de แม่น้ำแควใหญ่
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 : Bo Phloi, Muang Kanchanaburi, Sai Yok, Si Sawat
Sub-basin area
1 485,7km²
Upstream area
11 878,5km²
Discharge
139,44m³/s
Mean elev.
386m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de แม่น้ำแควน้อย1400 km²
- Bassin de แม่น้ำแควน้อย919 km²
4 dept-equivalent regions (GADM L2)
- 976.7 km²66.0% of basin
- 442.7 km²29.9% of basin
- Sai Yok57.6 km²3.9% of basin
- Bo Phloi3.3 km²0.2% of basin
4 intersecting protected areas
Salak Phra
IUCN IaWildlife Sanctuary
706.48 km² overlap
Erawan
IUCN IINational Park
296.05 km² overlap
Khuen Si Nakarin
IUCN IINational Park
24.54 km² overlap
Chalearm Rattanakosin
IUCN IINational Park
1.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 058 distinct species · 7 655 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 แม่น้ำแควใหญ่ : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 3 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°
25,5°C
Annual rain
1 616mm
Moisture idx (CMI)
-0,03
Runoff
844mm/an
PET
1 666mm
AET
1 066mm
Mean slope
10,2°
Water table
363cm
Forest
32%
Crops
8%
Urban
0%
Protected
69%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)