Bukit Dua Belas
IUCN IINational Park
547 km²
Commune · IDN
Muara Tabir
Indonesia
AfTropical, rainforest(100 %)
Species observed
10
Observations
13
Area
688,6km²
Partial data for this territory
Few observations recorded here. Real biodiversity is likely richer.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
10 distinct species · 13 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,4°C
Annual rain
2 827mm
Warmest m°
30,2°C
Coldest m°
22,5°C
Elevation: 57 m on average (min 29 m, max 94 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,4°C
Annual rain
2 827mm
Warmest month
30,2°C
Coldest month
22,5°C
Mean alt.
57m
Min
29m
Max
94m
Std. dev.
13m
Köppen-Geiger (dominant)
AfTropical, rainforest(100 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
4,5
Org. C
49,3g/kg
Clay
43,5%
Sand
36,2%
Silt
20,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Tebo
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,5
Org. C
60,2g/kg
Clay
42,4%
Sand
37,1%
Silt
20,5%
5–15 cm
pH H₂O
4,5
Org. C
51,3g/kg
Clay
43,1%
Sand
36,5%
Silt
20,4%
15–30 cm
pH H₂O
4,6
Org. C
36,5g/kg
Clay
45,1%
Sand
35,1%
Silt
19,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest86.4%
Crops1.5%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)11.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 0 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
105,1km
Basins crossed
7
Max stream order
5
Max drainage
19 288km²
Discharge in basins
196,2m³/s
Mean precip.
2 766mm/an
Mean T°
26,7°C
Moisture idx
0,41
Mean runoff
1 496mm/an
Mean elev. (basins)
69m
Watersheds crossing here
- Bassin de Batang Tabirsub-area521,8 km²overlap335.61 km²49%
- Bassin de Sungai Bernaisub-area238,4 km²overlap184.92 km²27%
- Bassin de Batang Harisub-area1 341,6 km²overlap50.50 km²7%
- Bassin de Batang Tabirsub-area91,8 km²overlap40.45 km²6%
- Bassin de Sungai Mendelangsub-area223,7 km²overlap35.19 km²5%
- Bassin de Sungai Kejasung Kecilsub-area315,1 km²overlap29.35 km²4%
- Bassin de Sungai Air Hitamsub-area752 km²overlap12.54 km²2%
Rivers / streams (13, ord ≥ 4)
- Batang Tabirord 5len here36.33 km12%total293 km
- Sungai Mengkekalord 2len here27.68 km100%total28 km
- Sungai Anak Sungkaiord 1len here6.82 km100%total7 km
- Sungai Banyuord 5len here5.71 km37%total15 km
- Sungai Bernaiord 1len here5.33 km100%total5 km
- Sungai Rawangord 3len here4.74 km30%total16 km
- Sungai Kembang Bungoord 2len here4.54 km100%total5 km
- Sungai Kaparord 5len here3.67 km100%total4 km
- Sungai Kejasung Besarord 4len here3.19 km14%total23 km
- Sungai Serantenord 3len here3.11 km99%total3 km
- Sungai Sungkaiord 1len here1.90 km100%total2 km
- Sungai Belilasord 3len here1.72 km8%total21 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
9,3%
Pesticides
0,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN II · 1IUCN Not Reported · 1IUCN III · 1
Tabir Kejasung/Sungai Bengkal
IUCN Not ReportedUndesigned
7 km²
Gua Ulu Tiangko
IUCN IIINature Reserve · 1919
7 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN