HydroBASINS lev08 watershed · #4081119570
Bassin de แม่น้ำน้อย
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 26 administrative regions : Bang Ban, Bang Pla Ma, Bang Rachan, Bang Sai, Chaiyo +21
Sub-basin area
2 075,3km²
Upstream area
2 075,5km²
Discharge
21,79m³/s
Mean elev.
10m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
26 dept-equivalent regions (GADM L2)
- 227.2 km²11.0% of basin
- 217.2 km²10.5% of basin
- 203.8 km²9.9% of basin
- Phak HaiPhra Nakhon Si Ayutthaya · Thailand171.7 km²8.3% of basin
- 169.1 km²8.2% of basin
- 165.3 km²8.0% of basin
- 157.3 km²7.6% of basin
- 120.5 km²5.8% of basin
18 moreFull L2 list
- Doembang Nangbua111.7 km² · 5.4%
- Bang Sai110.3 km² · 5.3%
- Samko86.8 km² · 4.2%
- Bang Pla Ma63.4 km² · 3.1%
- Muang Suphanburi56.1 km² · 2.7%
- Muang Chai Nat46.9 km² · 2.3%
- Tha Chang43.9 km² · 2.1%
- Si Prachan29.8 km² · 1.4%
- In Buri29.5 km² · 1.4%
- Muang Sing Buri23.0 km² · 1.1%
- Muang Ang Thong13.7 km² · 0.7%
- Sam Chuk10.3 km² · 0.5%
- Bang Ban3.3 km² · 0.2%
- Sanphaya2.3 km² · 0.1%
- Chaiyo2.3 km² · 0.1%
- Phrom Buri2.1 km² · 0.1%
- Pa Mok0.3 km² · 0.0%
- Lat Bua Luang0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
433 distinct species · 8 132 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 แม่น้ำน้อย : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 7.4%, 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°
28,2°C
Annual rain
1 237mm
Moisture idx (CMI)
-0,29
Runoff
332mm/an
PET
1 736mm
AET
991mm
Mean slope
0,0°
Water table
6cm
Forest
1%
Crops
63%
Urban
14%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)