HydroBASINS lev08 watershed · #5080116220
Bassin de Abacan 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 22 administrative regions : Angat, Angeles City, Apalit, Arayat, Bacolor +17
Sub-basin area
830,7km²
Upstream area
8 107,9km²
Discharge
347,87m³/s
Mean elev.
55m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de San Miguel River902 km²
- Bassin de Pampanga River173 km²
22 dept-equivalent regions (GADM L2)
- 106.7 km²12.9% of basin
- San Fernando City72.0 km²8.7% of basin
- 67.0 km²8.1% of basin
- San IldefonsoBulacan · Philippines65.9 km²8.0% of basin
- 60.6 km²7.3% of basin
- 55.9 km²6.8% of basin
- San Luis55.4 km²6.7% of basin
- Doña Remedios TrinidadBulacan · Philippines50.6 km²6.1% of basin
14 moreFull L2 list
- San Simon50.4 km² · 6.1%
- Apalit49.2 km² · 5.9%
- San Rafael41.5 km² · 5.0%
- Porac34.3 km² · 4.1%
- Santa Ana32.9 km² · 4.0%
- Minalin25.1 km² · 3.0%
- Mabalacat24.2 km² · 2.9%
- Baliuag17.2 km² · 2.1%
- Santo Tomas14.0 km² · 1.7%
- Pulilan2.0 km² · 0.2%
- Calumpit1.1 km² · 0.1%
- Macabebe0.9 km² · 0.1%
- Angat0.6 km² · 0.1%
- Arayat0.3 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
601 distinct species · 41 364 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Abacan River : 18 espèces reliées par 37 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 8 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°
27,0°C
Annual rain
2 333mm
Moisture idx (CMI)
0,32
Runoff
1 522mm/an
PET
1 564mm
AET
1 184mm
Mean slope
1,0°
Water table
38cm
Forest
4%
Crops
39%
Urban
65%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)