Ontologia

Commune · VNM

Âu Lâu

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

5

Observations

15

Area

15,9km²

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

5 distinct species · 15 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 obs · 1 cellules
Obs. / cellule
≥ 15
15–14
15–14
15–14
< 15

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

Climate

Mean T°

23,8°C

Annual rain

2 017mm

Warmest m°

31,1°C

Coldest m°

13,0°C

Elevation: 59 m on average (min 33 m, max 140 m)

Bioclimatic detailsExpert
Annual mean temp.
23,8°C
Annual rain
2 017mm
Warmest month
31,1°C
Coldest month
13,0°C
Mean alt.
59m
Min
33m
Max
140m
Std. dev.
26m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,4

Org. C

20,1g/kg

Clay

33,1%

Sand

29,7%

Silt

37,2%

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

Dominant lithology: pbGLiMaggregated to Yên Bái

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
24,6g/kg
Clay
31,8%
Sand
31,0%
Silt
37,3%
5–15 cm
pH H₂O
5,4
Org. C
21,8g/kg
Clay
31,7%
Sand
30,5%
Silt
38,0%
15–30 cm
pH H₂O
5,4
Org. C
13,8g/kg
Clay
35,9%
Sand
27,8%
Silt
36,4%

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

Land cover

Forest47.1%
Crops21.4%
Built-up1.6%
Bare soil3.4%
Other (grassland, water…)26.5%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

2,1km

Basins crossed

1

Max stream order

6

Max drainage

47 031km²

Discharge in basins

4,7m³/s

Mean precip.

1 720mm/an

Mean T°

22,4°C

Moisture idx

0,21

Mean runoff

839mm/an

Mean elev. (basins)

223m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

3hab/km²

Night light

0,7nW

Built-up

160,9%

Pesticides

7,8kg/km²

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