Ontologia

Commune · VNM

Văn Hán

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

10

Observations

27

Area

65,2km²

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

10 distinct species · 27 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

27 obs · 2 cellules
Obs. / cellule
≥ 16
16–15
16–15
16–15
< 16

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

Climate

Mean T°

23,2°C

Annual rain

1 915mm

Warmest m°

31,0°C

Coldest m°

12,1°C

Elevation: 94 m on average (min 41 m, max 213 m)

Bioclimatic detailsExpert
Annual mean temp.
23,2°C
Annual rain
1 915mm
Warmest month
31,0°C
Coldest month
12,1°C
Mean alt.
94m
Min
41m
Max
213m
Std. dev.
40m
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

5,7

Org. C

21,9g/kg

Clay

32,5%

Sand

26,6%

Silt

40,9%

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

Dominant lithology: scGLiMaggregated to Đồng Hỷ

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
30,4g/kg
Clay
32,1%
Sand
27,1%
Silt
40,8%
5–15 cm
pH H₂O
5,7
Org. C
20,4g/kg
Clay
32,1%
Sand
27,2%
Silt
40,7%
15–30 cm
pH H₂O
5,7
Org. C
15,0g/kg
Clay
33,2%
Sand
25,5%
Silt
41,3%

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

Land cover

Forest63.0%
Crops9.5%
Built-up0.1%
Bare soil2.3%
Other (grassland, water…)25.1%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

3 545km²

Discharge in basins

5,7m³/s

Mean precip.

1 843mm/an

Mean T°

23,1°C

Moisture idx

0,28

Mean runoff

799mm/an

Mean elev. (basins)

92m

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

12,7%

Pesticides

9,4kg/km²

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