HydroBASINS lev08 watershed · #4080018280
Bassin de แม่น้ำเจ้าพระยา
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 62 administrative regions : Bang Bua Thong, Bang Kapi, Bang Khen, Bang Kho Laem, Bang Kruai +57
Sub-basin area
1 419,2km²
Upstream area
144 308,8km²
Discharge
835,95m³/s
Mean elev.
6m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de แม่น้ำเจ้าพระยา733 km²
- Bassin de แม่น้ำน้อย210 km²
62 dept-equivalent regions (GADM L2)
- Lat Bua LuangPhra Nakhon Si Ayutthaya · Thailand160.3 km²11.3% of basin
- 122.7 km²8.7% of basin
- Sam Khok119.5 km²8.5% of basin
- 116.5 km²8.2% of basin
- 72.7 km²5.1% of basin
- 64.3 km²4.5% of basin
- Lat Lum Kaeo63.9 km²4.5% of basin
- 57.3 km²4.1% of basin
54 moreFull L2 list
- Phra Samut Jadee41.1 km² · 2.9%
- Khlong Luang36.2 km² · 2.6%
- Sena35.2 km² · 2.5%
- Don Muang33.4 km² · 2.4%
- Chatuchak32.4 km² · 2.3%
- Thungkru31.2 km² · 2.2%
- Bang Kruai29.4 km² · 2.1%
- Chom Thong20.5 km² · 1.5%
- Lak Si19.8 km² · 1.4%
- Suan Luang17.2 km² · 1.2%
- Bang Na16.5 km² · 1.2%
- Huai Kwang16.0 km² · 1.1%
- Yannawa14.8 km² · 1.0%
- Khlong Toey14.6 km² · 1.0%
- Rat Burana13.3 km² · 0.9%
- Wattana12.8 km² · 0.9%
- Bang Khen12.5 km² · 0.9%
- Prakanong12.5 km² · 0.9%
- Bangkok Noi11.9 km² · 0.8%
- Taling Chan11.9 km² · 0.8%
- Dusit11.4 km² · 0.8%
- Bang Su10.9 km² · 0.8%
- Muang Samut Prakan10.5 km² · 0.7%
- Phasi Charoen10.3 km² · 0.7%
- Bang Bua Thong10.3 km² · 0.7%
- Bang Plad9.4 km² · 0.7%
- Phaya Thai8.9 km² · 0.6%
- Bang Yai8.9 km² · 0.6%
- Bang Kho Laem8.6 km² · 0.6%
- Wang Thonglang8.5 km² · 0.6%
- Bangkhuntien8.3 km² · 0.6%
- Din Dang8.3 km² · 0.6%
- Thon Buri8.0 km² · 0.6%
- Pathum Wan7.8 km² · 0.6%
- Sathorn7.3 km² · 0.5%
- Ratchathewi7.0 km² · 0.5%
- Lat Phrao6.6 km² · 0.5%
- Bangkok Yai6.3 km² · 0.4%
- Khlong San6.1 km² · 0.4%
- Bang Pa-In6.1 km² · 0.4%
- Thanyaburi5.4 km² · 0.4%
- Sai Mai5.3 km² · 0.4%
- Phra Nakhon5.2 km² · 0.4%
- Bang Rak4.1 km² · 0.3%
- Lam Luk Ka3.1 km² · 0.2%
- Pom Pram Sattru2.4 km² · 0.2%
- Bang Kapi2.0 km² · 0.1%
- Samphantawong1.8 km² · 0.1%
- Sai Noi1.6 km² · 0.1%
- Bang Pla Ma1.2 km² · 0.1%
- Prawet0.9 km² · 0.1%
- Bang Len0.7 km² · 0.1%
- Song Phi Nong0.1 km² · 0.0%
- Bang Plee0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 817 distinct species · 462 582 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 แม่น้ำเจ้าพระยา : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 5.4%, 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°
28,1°C
Annual rain
1 408mm
Moisture idx (CMI)
-0,15
Runoff
435mm/an
PET
1 657mm
AET
1 028mm
Mean slope
0,1°
Water table
5cm
Forest
0%
Crops
30%
Urban
71%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)