Ontologia

District · VNM

Lục Ngạn

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

16

Observations

19

Area

1 029km²

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

16 distinct species · 19 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

19 obs · 12 cellules
Obs. / cellule
≥ 2
2–1
2–1
2–1
< 2

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

Climate

Mean T°

22,8°C

Annual rain

1 582mm

Warmest m°

30,9°C

Coldest m°

11,4°C

Elevation: 125 m on average (min 9 m, max 755 m)

Bioclimatic detailsExpert
Annual mean temp.
22,8°C
Annual rain
1 582mm
Warmest month
30,9°C
Coldest month
11,4°C
Mean alt.
125m
Min
9m
Max
755m
Std. dev.
102m
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

5,9

Org. C

20,9g/kg

Clay

32,4%

Sand

24,4%

Silt

43,2%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
29,9g/kg
Clay
31,2%
Sand
25,3%
Silt
43,5%
5–15 cm
pH H₂O
5,9
Org. C
20,2g/kg
Clay
32,0%
Sand
24,8%
Silt
43,3%
15–30 cm
pH H₂O
5,9
Org. C
12,6g/kg
Clay
33,9%
Sand
23,0%
Silt
43,0%

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

Land cover

Forest45.3%
Crops18.1%
Built-up0.6%
Bare soil2.0%
Other (grassland, water…)33.9%

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

Hydrology7 basins · 8 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

128,5km

Lake surface here

12,33km²

Basins crossed

7

Max stream order

5

Max drainage

3 099km²

Discharge in basins

63,5m³/s

Mean precip.

1 526mm/an

Mean T°

22,8°C

Moisture idx

0,15

Mean runoff

689mm/an

Mean elev. (basins)

147m

Watersheds crossing here

Lakes (8, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

0,2nW

Built-up

60,4%

Pesticides

8,8kg/km²

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

Protected areas1

IUCN V · 1

Cam Son

IUCN V

Cultural and Historical Site · 1986

17 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations20