Ontologia

Commune · VNM

Hoàn Sơn

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

12

Observations

20

Area

7km²

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

12 distinct species · 20 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 obs · 1 cellules
Obs. / cellule
≥ 20
20–19
20–19
20–19
< 20

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 890mm

Warmest m°

32,4°C

Coldest m°

13,2°C

Elevation: 9 m on average (min 6 m, max 15 m)

Bioclimatic detailsExpert
Annual mean temp.
24,1°C
Annual rain
1 890mm
Warmest month
32,4°C
Coldest month
13,2°C
Mean alt.
9m
Min
6m
Max
15m
Std. dev.
4m
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

17,2g/kg

Clay

28,3%

Sand

32,3%

Silt

39,5%

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
22,3g/kg
Clay
27,7%
Sand
33,3%
Silt
39,1%
5–15 cm
pH H₂O
6,2
Org. C
16,5g/kg
Clay
28,2%
Sand
32,2%
Silt
39,8%
15–30 cm
pH H₂O
6,2
Org. C
12,6g/kg
Clay
29,2%
Sand
31,3%
Silt
39,5%

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

Land cover

Forest7.6%
Crops12.3%
Built-up15.8%
Bare soil0.3%
Other (grassland, water…)64.1%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

2,1km

Basins crossed

2

Max stream order

1

Max drainage

5 705km²

Discharge in basins

0,8m³/s

Mean precip.

1 641mm/an

Mean T°

23,9°C

Moisture idx

0,21

Mean runoff

815mm/an

Mean elev. (basins)

8m

Watersheds crossing here

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

Human pressure

Pop. density

31hab/km²

Night light

12,8nW

Built-up

1 575,6%

Pesticides

8,5kg/km²

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