Ontologia

Commune · VNM

Vạn Xuân

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

257

Observations

1 243

Area

138,7km²

Ecological tissue

Sample of 30 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 Vạn Xuân : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
26
Connectance
0.060
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

257 distinct species · 1 243 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 243 obs · 4 cellules
Obs. / cellule
≥ 1 103
1 103–1 102
86–1 102
86–85
< 86

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

Climate

Mean T°

22,5°C

Annual rain

2 165mm

Warmest m°

30,9°C

Coldest m°

12,1°C

Elevation: 304 m on average (min 88 m, max 1 214 m)

Bioclimatic detailsExpert
Annual mean temp.
22,5°C
Annual rain
2 165mm
Warmest month
30,9°C
Coldest month
12,1°C
Mean alt.
304m
Min
88m
Max
1 214m
Std. dev.
238m
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

5,4

Org. C

29,2g/kg

Clay

33,7%

Sand

31,9%

Silt

34,5%

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

Dominant lithology: paGLiMaggregated to Thường Xuân

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
39,4g/kg
Clay
31,6%
Sand
33,2%
Silt
35,2%
5–15 cm
pH H₂O
5,4
Org. C
28,7g/kg
Clay
32,5%
Sand
32,5%
Silt
35,0%
15–30 cm
pH H₂O
5,4
Org. C
19,6g/kg
Clay
36,8%
Sand
30,0%
Silt
33,2%

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

Land cover

Forest86.4%
Crops1.8%
Built-up0.2%
Bare soil0.6%
Other (grassland, water…)11.1%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

20,1km

Basins crossed

1

Max stream order

5

Max drainage

6 455km²

Discharge in basins

8,9m³/s

Mean precip.

1 543mm/an

Mean T°

21,8°C

Moisture idx

0,13

Mean runoff

863mm/an

Mean elev. (basins)

506m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

15,7%

Pesticides

9,5kg/km²

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

Protected areas2

IUCN Not Applicable · 1IUCN Not Reported · 1

Western Nghe An

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2007

12 990 km²

Xuan Lien

IUCN Not Reported

Nature Reserve · 2013

256 km²

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