Ontologia

Commune · VNM

Xuân Vân

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

3

Observations

4

Area

40,1km²

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

3 distinct species · 4 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 obs · 1 cellules
Obs. / cellule
≥ 4
4–3
4–3
4–3
< 4

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

Climate

Mean T°

23,6°C

Annual rain

1 930mm

Warmest m°

31,1°C

Coldest m°

12,7°C

Elevation: 114 m on average (min 43 m, max 322 m)

Bioclimatic detailsExpert
Annual mean temp.
23,6°C
Annual rain
1 930mm
Warmest month
31,1°C
Coldest month
12,7°C
Mean alt.
114m
Min
43m
Max
322m
Std. dev.
77m
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

21,8g/kg

Clay

33,5%

Sand

26,4%

Silt

40,1%

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

Dominant lithology: scGLiMaggregated to Yên Sơn

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
29,5g/kg
Clay
33,2%
Sand
27,1%
Silt
39,7%
5–15 cm
pH H₂O
5,7
Org. C
22,7g/kg
Clay
32,2%
Sand
27,2%
Silt
40,6%
15–30 cm
pH H₂O
5,7
Org. C
13,2g/kg
Clay
35,0%
Sand
24,9%
Silt
40,0%

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

Land cover

Forest50.6%
Crops14.7%
Built-up0.9%
Bare soil2.1%
Other (grassland, water…)31.7%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

12,9km

Basins crossed

2

Max stream order

6

Max drainage

27 798km²

Discharge in basins

25,1m³/s

Mean precip.

1 704mm/an

Mean T°

22,4°C

Moisture idx

0,22

Mean runoff

967mm/an

Mean elev. (basins)

236m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

91,4%

Pesticides

8,6kg/km²

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