Ontologia

Commune · VNM

Hiên Vân

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

8

Observations

8

Area

4,5km²

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 · 8 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 obs · 1 cellules
Obs. / cellule
≥ 8
8–7
8–7
8–7
< 8

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

Climate

Mean T°

24,1°C

Annual rain

1 902mm

Warmest m°

32,4°C

Coldest m°

13,2°C

Elevation: 8 m on average (min 5 m, max 10 m)

Bioclimatic detailsExpert
Annual mean temp.
24,1°C
Annual rain
1 902mm
Warmest month
32,4°C
Coldest month
13,2°C
Mean alt.
8m
Min
5m
Max
10m
Std. dev.
2m
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

6,1

Org. C

18,4g/kg

Clay

30,7%

Sand

31,7%

Silt

37,6%

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

Dominant lithology: suGLiMaggregated to Tiên Du

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
25,4g/kg
Clay
29,3%
Sand
33,1%
Silt
37,8%
5–15 cm
pH H₂O
6,1
Org. C
16,8g/kg
Clay
29,8%
Sand
32,0%
Silt
38,2%
15–30 cm
pH H₂O
6,1
Org. C
12,9g/kg
Clay
33,0%
Sand
30,0%
Silt
36,9%

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

Land cover

Forest7.4%
Crops46.0%
Built-up4.7%
Bare soil1.0%
Other (grassland, water…)41.0%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

1,0km

Basins crossed

1

Max stream order

2

Max drainage

510km²

Discharge in basins

0,1m³/s

Mean precip.

1 637mm/an

Mean T°

23,9°C

Moisture idx

0,21

Mean runoff

822mm/an

Mean elev. (basins)

7m

Watersheds crossing here

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

Human pressure

Pop. density

6hab/km²

Night light

3,4nW

Built-up

469,6%

Pesticides

8,5kg/km²

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