HydroBASINS lev08 watershed · #4081157440
Bassin de Kimbulwana 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 8 administrative regions : Galewela, Ganewatta, Ibbagamuwa, Mahawa, Palagala +3
Sub-basin area
548km²
Upstream area
548km²
Discharge
11,83m³/s
Mean elev.
165m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- PolpithigamaKurunegala · Sri Lanka253.5 km²46.4% of basin
- IbbagamuwaKurunegala · Sri Lanka144.9 km²26.5% of basin
- 84.1 km²15.4% of basin
- 18.6 km²3.4% of basin
- 18.0 km²3.3% of basin
- 11.7 km²2.2% of basin
- 9.2 km²1.7% of basin
- 5.7 km²1.1% of basin
22 intersecting protected areas
Pallekele
IUCN IbReserved Forest
109.33 km² overlap
Kahalla - Pallekele
IUCN IVSanctuary
45.40 km² overlap
Kahalla
IUCN IbReserved Forest
5.69 km² overlap
Manapayakanda[mana .part]
IUCN IbReserved Forest
4.61 km² overlap
Dolukanda
IUCN IaConservation Forest
4.56 km² overlap
Degodaturawa
IUCN IbReserved Forest
4.56 km² overlap
Henegedaralanda
IUCN IbReserved Forest
2.76 km² overlap
Maeliyakanda
IUCN IbReserved Forest
2.61 km² overlap
Udangarekanda -2Galapaya
IUCN IbReserved Forest
2.23 km² overlap
13 more protected areassorted by overlap area
Korakahagolla
IUCN IbReserved Forest
2.14 km² overlap
Nawagalakanda
IUCN IbReserved Forest
1.53 km² overlap
Udangarekanda
IUCN IbReserved Forest
1.49 km² overlap
Ma-Eliya
IUCN IbReserved Forest
1.48 km² overlap
Wegodapola
IUCN IbReserved Forest
0.87 km² overlap
Kalugalla
IUCN IbReserved Forest
0.83 km² overlap
Kiribamunakanda
IUCN IaConservation Forest
0.82 km² overlap
Dodangaslanda 5
IUCN IbReserved Forest
0.35 km² overlap
Manapaya kumbukgete
IUCN IbReserved Forest
0.28 km² overlap
Omaragolla
IUCN IaConservation Forest
0.28 km² overlap
Oyadeka(Hevanatenna)
IUCN IbReserved Forest
0.18 km² overlap
Ambokka kanda
IUCN IbReserved Forest
0.18 km² overlap
Diggalkanda
IUCN IbReserved Forest
0.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
270 distinct species · 904 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Kimbulwana Oya : 35 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 4 types (connectance 4.2%, 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°
26,9°C
Annual rain
1 608mm
Moisture idx (CMI)
0,00
Runoff
689mm/an
PET
1 602mm
AET
1 217mm
Mean slope
4,1°
Water table
190cm
Forest
5%
Crops
59%
Urban
14%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)