Ontologia

Province · vnm

Bắc Kạn

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

1 189

Observations

3 951

Area

4 862,5km²

Ecological tissue

Sample of 39 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 Kạn : 35 espèces reliées par 26 interactions GloBI sur 3 types (connectance 3.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
26
Connectance
0.035
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

1 189 distinct species · 3 951 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 951 obs · 88 cellules
Obs. / cellule
≥ 1 892
55–1 891
15–54
6–14
< 6

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

Climate

Mean T°

21,1°C

Annual rain

1 999mm

Warmest m°

28,8°C

Coldest m°

9,9°C

Elevation: 485 m on average (min 90 m, max 1 360 m)

Bioclimatic detailsExpert
Annual mean temp.
21,1°C
Annual rain
1 999mm
Warmest month
28,8°C
Coldest month
9,9°C
Mean alt.
485m
Min
90m
Max
1 360m
Std. dev.
210m
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

5,5

Org. C

27,5g/kg

Clay

33,2%

Sand

24,4%

Silt

42,4%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
40,9g/kg
Clay
32,7%
Sand
25,0%
Silt
42,3%
5–15 cm
pH H₂O
5,5
Org. C
25,5g/kg
Clay
32,3%
Sand
25,0%
Silt
42,7%
15–30 cm
pH H₂O
5,5
Org. C
16,1g/kg
Clay
34,6%
Sand
23,3%
Silt
42,1%

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

Land cover

Forest77.0%
Crops2.5%
Built-up0.1%
Bare soil0.2%
Other (grassland, water…)20.2%

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

Hydrology14 basins · 1 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

489,4km

Lake surface here

2,84km²

Basins crossed

14

Max stream order

5

Max drainage

14 973km²

Discharge in basins

205,3m³/s

Mean precip.

1 649mm/an

Mean T°

21,3°C

Moisture idx

0,21

Mean runoff

743mm/an

Mean elev. (basins)

462m

Watersheds crossing here

5 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

14,4%

Pesticides

8,9kg/km²

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

Protected areas6

IUCN Not Reported · 5IUCN IV · 1

Na Hang

IUCN IV

Nature Reserve · 1994

239 km²

Kim Hy

IUCN Not Reported

Nature Reserve · 2003

151 km²

Ba Be

IUCN Not Reported

National Park · 1992

99 km²

Ba Be

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2011

99 km²

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

Sub-administrations7