Ontologia

Commune · VNM

Tứ Quận

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

1

Observations

6

Area

35,9km²

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

1 distinct species · 6 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 obs · 1 cellules
Obs. / cellule
≥ 6
6–5
6–5
6–5
< 6

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

1 926mm

Warmest m°

31,3°C

Coldest m°

13,0°C

Elevation: 71 m on average (min 44 m, max 243 m)

Bioclimatic detailsExpert
Annual mean temp.
23,8°C
Annual rain
1 926mm
Warmest month
31,3°C
Coldest month
13,0°C
Mean alt.
71m
Min
44m
Max
243m
Std. dev.
34m
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

5,6

Org. C

22,4g/kg

Clay

33,4%

Sand

28,3%

Silt

38,2%

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
5,6
Org. C
29,4g/kg
Clay
33,0%
Sand
29,2%
Silt
37,7%
5–15 cm
pH H₂O
5,5
Org. C
24,2g/kg
Clay
31,7%
Sand
29,3%
Silt
39,0%
15–30 cm
pH H₂O
5,5
Org. C
13,6g/kg
Clay
35,6%
Sand
26,5%
Silt
37,9%

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

Land cover

Forest55.9%
Crops14.1%
Built-up0.8%
Bare soil2.6%
Other (grassland, water…)26.6%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

4,0km

Basins crossed

2

Max stream order

6

Max drainage

27 798km²

Discharge in basins

19,8m³/s

Mean precip.

1 749mm/an

Mean T°

22,8°C

Moisture idx

0,22

Mean runoff

1 075mm/an

Mean elev. (basins)

179m

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

85,5%

Pesticides

8,5kg/km²

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