Ontologia

Subdivision · IDN

Sungai Undan

Indonesia

AfTropical, rainforest(100 %)

Species observed

8

Observations

9

Area

89,2km²

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

8 distinct species · 9 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 obs · 2 cellules
Obs. / cellule
≥ 6
6–5
6–5
6–5
< 6

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

Climate

Mean T°

26,6°C

Annual rain

2 442mm

Warmest m°

30,0°C

Coldest m°

23,2°C

Elevation: 4 m on average (min 1 m, max 6 m)

Bioclimatic detailsExpert
Annual mean temp.
26,6°C
Annual rain
2 442mm
Warmest month
30,0°C
Coldest month
23,2°C
Mean alt.
4m
Min
1m
Max
6m
Std. dev.
1m
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

4,7

Org. C

175,9g/kg

Clay

41,5%

Sand

23,1%

Silt

35,5%

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

Dominant lithology: suGLiMaggregated to Indragiri Hilir

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,7
Org. C
156,9g/kg
Clay
39,3%
Sand
24,1%
Silt
36,5%
5–15 cm
pH H₂O
4,7
Org. C
199,9g/kg
Clay
41,2%
Sand
23,2%
Silt
35,6%
15–30 cm
pH H₂O
4,7
Org. C
170,8g/kg
Clay
43,9%
Sand
21,8%
Silt
34,4%

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

Land cover

Forest70.9%
Crops0.8%
Built-up0.0%
Bare soil0.2%
Other (grassland, water…)28.0%

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

Hydrology4 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,4km

Basins crossed

4

Max stream order

5

Max drainage

3 509km²

Discharge in basins

25,5m³/s

Mean precip.

2 360mm/an

Mean T°

26,9°C

Moisture idx

0,32

Mean runoff

1 089mm/an

Mean elev. (basins)

7m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Built-up

4,2%

Pesticides

0,5kg/km²

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