Danau Bian
IUCN IVWildlife Reserve
1 105 km²
Subdivision · IDN
Waan
Indonesia
AfTropical, rainforest(100 %)
Species observed
2
Observations
2
Area
260,6km²
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
2 distinct species · 2 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,3°C
Annual rain
2 531mm
Warmest m°
31,3°C
Coldest m°
22,3°C
Elevation: 11 m on average (min 6 m, max 27 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,3°C
Annual rain
2 531mm
Warmest month
31,3°C
Coldest month
22,3°C
Mean alt.
11m
Min
6m
Max
27m
Std. dev.
5m
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
5,2
Org. C
90,4g/kg
Clay
36,5%
Sand
34,3%
Silt
29,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Merauke
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,2
Org. C
97,0g/kg
Clay
36,0%
Sand
34,6%
Silt
29,4%
5–15 cm
pH H₂O
5,1
Org. C
99,2g/kg
Clay
35,8%
Sand
34,8%
Silt
29,4%
15–30 cm
pH H₂O
5,1
Org. C
75,1g/kg
Clay
37,7%
Sand
33,5%
Silt
28,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest62.6%
Crops1.0%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)36.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 4 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
74,5km
Lake surface here
3,44km²
Basins crossed
4
Max stream order
5
Max drainage
5 510km²
Discharge in basins
23,9m³/s
Mean precip.
2 555mm/an
Mean T°
26,4°C
Moisture idx
0,37
Mean runoff
1 282mm/an
Mean elev. (basins)
35m
Watersheds crossing here
Lakes (4, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
0,2%
Pesticides
0,5kg/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