HydroBASINS lev08 watershed · #5080116230
Bassin de Angat River
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 19 administrative regions : Angat, Apalit, Baliuag, Bustos, Calumpit +14
Sub-basin area
991,2km²
Upstream area
991,2km²
Discharge
44,04m³/s
Mean elev.
361m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
19 dept-equivalent regions (GADM L2)
- Doña Remedios TrinidadBulacan · Philippines519.2 km²52.6% of basin
- NorzagarayBulacan · Philippines191.1 km²19.3% of basin
- San RafaelBulacan · Philippines64.8 km²6.6% of basin
- AngatBulacan · Philippines48.9 km²4.9% of basin
- CalumpitBulacan · Philippines34.5 km²3.5% of basin
- PulilanBulacan · Philippines33.1 km²3.4% of basin
- BaliuagBulacan · Philippines24.4 km²2.5% of basin
- 24.1 km²2.4% of basin
11 moreFull L2 list
- Apalit14.2 km² · 1.4%
- Bustos10.4 km² · 1.1%
- Plaridel8.9 km² · 0.9%
- Dingalan7.6 km² · 0.8%
- Malolos City3.8 km² · 0.4%
- Hagonoy1.1 km² · 0.1%
- San Jose del Monte City0.9 km² · 0.1%
- Santa Maria0.6 km² · 0.1%
- San Ildefonso0.1 km² · 0.0%
- Pandi0.1 km² · 0.0%
- General Tinio0.0 km² · 0.0%
5 intersecting protected areas
Angat (Metro Water District) Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
524.40 km² overlap
Angat (Pilot) Watershed and Forest Range
IUCN Not AssignedWatershed and Forest Range
60.16 km² overlap
Wildlife Sanctuary
1.27 km² overlap
Doña Remedios Trinidad-General Tinio Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
1.17 km² overlap
Protected Landscape
0.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
832 distinct species · 4 109 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Angat River : 23 espèces reliées par 25 interactions GloBI sur 2 types (connectance 7.1%, filtre Serrano α=0.2). 4 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°
25,2°C
Annual rain
2 899mm
Moisture idx (CMI)
0,48
Runoff
1 539mm/an
PET
1 486mm
AET
1 279mm
Mean slope
11,1°
Water table
341cm
Forest
55%
Crops
20%
Urban
22%
Protected
61%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)