Dolok Surungan
IUCN IVWildlife Reserve
215 km²
Subdivision · IDN
Lumban Balik
Indonesia
AfTropical, rainforest(100 %)
Species observed
32
Observations
42
Area
15,2km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
32 distinct species · 42 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
20,2°C
Annual rain
3 933mm
Warmest m°
24,6°C
Coldest m°
15,8°C
Elevation: 1 126 m on average (min 792 m, max 1 250 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
20,2°C
Annual rain
3 933mm
Warmest month
24,6°C
Coldest month
15,8°C
Mean alt.
1 126m
Min
792m
Max
1 250m
Std. dev.
122m
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
5,0
Org. C
48,6g/kg
Clay
35,8%
Sand
34,3%
Silt
30,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Toba Samosir
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,0
Org. C
61,9g/kg
Clay
35,1%
Sand
34,5%
Silt
30,5%
5–15 cm
pH H₂O
5,0
Org. C
55,9g/kg
Clay
35,0%
Sand
34,6%
Silt
30,5%
15–30 cm
pH H₂O
5,1
Org. C
27,9g/kg
Clay
37,2%
Sand
33,8%
Silt
29,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest97.5%
Crops0.6%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)1.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
1
Max drainage
3 278km²
Discharge in basins
0,5m³/s
Mean precip.
2 369mm/an
Mean T°
24,6°C
Moisture idx
0,31
Mean runoff
1 078mm/an
Mean elev. (basins)
393m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
4,2%
Pesticides
0,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN IV · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN