Ontologia

District · VNM

Bắc Sơn

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

88

Observations

113

Area

699,9km²

Ecological tissue

Sample of 17 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bắc Sơn : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 8.8%, filtre Serrano α=0.2).

Espèces affichées
17
Interactions affichées
12
Connectance
0.088
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

88 distinct species · 113 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

113 obs · 15 cellules
Obs. / cellule
≥ 36
25–35
10–24
3–9
< 3

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

Climate

Mean T°

21,3°C

Annual rain

2 002mm

Warmest m°

29,2°C

Coldest m°

10,2°C

Elevation: 402 m on average (min 166 m, max 803 m)

Bioclimatic detailsExpert
Annual mean temp.
21,3°C
Annual rain
2 002mm
Warmest month
29,2°C
Coldest month
10,2°C
Mean alt.
402m
Min
166m
Max
803m
Std. dev.
98m
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

24,1g/kg

Clay

34,3%

Sand

25,3%

Silt

40,4%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
35,1g/kg
Clay
33,1%
Sand
26,1%
Silt
40,8%
5–15 cm
pH H₂O
5,6
Org. C
22,5g/kg
Clay
33,9%
Sand
25,8%
Silt
40,3%
15–30 cm
pH H₂O
5,6
Org. C
14,6g/kg
Clay
35,8%
Sand
24,2%
Silt
40,0%

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

Land cover

Forest68.3%
Crops5.9%
Built-up0.2%
Bare soil0.4%
Other (grassland, water…)25.2%

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

Hydrology5 basins · 1 lakes · 0 rivers

Hydrology metrics for this exact territory

Lake surface here

0,23km²

Basins crossed

5

Max drainage

3 099km²

Discharge in basins

10,5m³/s

Mean precip.

1 572mm/an

Mean T°

21,6°C

Moisture idx

0,17

Mean runoff

647mm/an

Mean elev. (basins)

385m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

20,7%

Pesticides

9,1kg/km²

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

Protected areas2

IUCN IV · 1IUCN V · 1

Huu Lien

IUCN IV

Nature Reserve · 2006

97 km²

Bac Son

IUCN V

Nature Reserve · 2013

18 km²

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

Sub-administrations14