Ontologia

Subdivision · IDN

Tandun

Indonesia

AfTropical, rainforest(100 %)

Species observed

12

Observations

14

Area

53km²

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

12 distinct species · 14 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 obs · 2 cellules
Obs. / cellule
≥ 13
13–12
13–12
13–12
< 13

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

26,3°C

Annual rain

3 105mm

Warmest m°

30,7°C

Coldest m°

22,0°C

Elevation: 62 m on average (min 45 m, max 138 m)

Bioclimatic detailsExpert
Annual mean temp.
26,3°C
Annual rain
3 105mm
Warmest month
30,7°C
Coldest month
22,0°C
Mean alt.
62m
Min
45m
Max
138m
Std. dev.
14m
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

4,6

Org. C

65,1g/kg

Clay

40,7%

Sand

34,2%

Silt

25,1%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: smGLiMaggregated to Rokan Hulu

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,6
Org. C
73,4g/kg
Clay
41,1%
Sand
34,2%
Silt
24,6%
5–15 cm
pH H₂O
4,6
Org. C
60,2g/kg
Clay
40,7%
Sand
34,0%
Silt
25,3%
15–30 cm
pH H₂O
4,6
Org. C
61,6g/kg
Clay
40,2%
Sand
34,4%
Silt
25,4%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest91.0%
Crops0.6%
Built-up0.5%
Bare soil0.0%
Other (grassland, water…)8.0%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

22,5km

Basins crossed

1

Max stream order

3

Max drainage

2 274km²

Discharge in basins

2,3m³/s

Mean precip.

2 979mm/an

Mean T°

26,7°C

Moisture idx

0,41

Mean runoff

1 296mm/an

Mean elev. (basins)

63m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

1hab/km²

Night light

0,2nW

Built-up

44,7%

Pesticides

0,6kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)