HydroBASINS lev08 watershed · #4081157380
Bassin de Maguru Oya
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 11 administrative regions : Bamunakotuwa, Ganewatta, Kurunegala, Mahawa, Mallawapitiya +6
Sub-basin area
240,1km²
Upstream area
240,1km²
Discharge
5,9m³/s
Mean elev.
124m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
11 dept-equivalent regions (GADM L2)
- 67.1 km²28.1% of basin
- KurunegalaKurunegala · Sri Lanka66.1 km²27.6% of basin
- WariyapolaKurunegala · Sri Lanka41.3 km²17.3% of basin
- MallawapitiyaKurunegala · Sri Lanka27.8 km²11.6% of basin
- WeerambugedaraKurunegala · Sri Lanka20.0 km²8.4% of basin
- PolgahawelaKurunegala · Sri Lanka12.2 km²5.1% of basin
- BamunakotuwaKurunegala · Sri Lanka3.3 km²1.4% of basin
- RambukkanaKegalle · Sri Lanka0.8 km²0.3% of basin
3 moreFull L2 list
- Ganewatta0.3 km² · 0.1%
- Mawathagama0.2 km² · 0.1%
- Mahawa0.1 km² · 0.0%
7 intersecting protected areas
Yakdessagalakana
IUCN IbReserved Forest
8.17 km² overlap
Talagomuwa
IUCN IbReserved Forest
0.58 km² overlap
Sundapola
IUCN IbReserved Forest
0.57 km² overlap
Haweniyawatta
IUCN IbReserved Forest
0.43 km² overlap
Kumbalpola
IUCN IbReserved Forest
0.28 km² overlap
Moragolla
IUCN Not ReportedForest Reserve
0.24 km² overlap
Palagalakanda
IUCN IaConservation Forest
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
801 distinct species · 15 227 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Maguru Oya : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 3 types (connectance 5.9%, 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°
27,1°C
Annual rain
1 895mm
Moisture idx (CMI)
0,14
Runoff
788mm/an
PET
1 612mm
AET
1 387mm
Mean slope
3,2°
Water table
137cm
Forest
0%
Crops
64%
Urban
53%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)