Ontologia

District · VNM

Gia Viễn

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

541

Observations

9 465

Area

177km²

Ecological tissue

Sample of 34 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 Gia Viễn : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
49
Connectance
0.087
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

541 distinct species · 9 465 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 465 obs · 5 cellules
Obs. / cellule
≥ 8 029
8 029–8 028
606–8 028
334–605
< 334

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

Climate

Mean T°

23,9°C

Annual rain

1 837mm

Warmest m°

32,5°C

Coldest m°

13,4°C

Elevation: 23 m on average (min 2 m, max 212 m)

Bioclimatic detailsExpert
Annual mean temp.
23,9°C
Annual rain
1 837mm
Warmest month
32,5°C
Coldest month
13,4°C
Mean alt.
23m
Min
2m
Max
212m
Std. dev.
40m
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

6,0

Org. C

24,1g/kg

Clay

35,0%

Sand

26,7%

Silt

38,3%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
31,1g/kg
Clay
33,7%
Sand
27,5%
Silt
38,8%
5–15 cm
pH H₂O
6,0
Org. C
24,3g/kg
Clay
33,6%
Sand
27,4%
Silt
39,0%
15–30 cm
pH H₂O
6,0
Org. C
16,9g/kg
Clay
37,8%
Sand
25,2%
Silt
36,9%

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

Land cover

Forest23.9%
Crops41.7%
Built-up3.1%
Bare soil1.9%
Other (grassland, water…)29.3%

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

Hydrology1 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

43,2km

Basins crossed

1

Max stream order

5

Max drainage

5 752km²

Discharge in basins

5,4m³/s

Mean precip.

1 729mm/an

Mean T°

23,8°C

Moisture idx

0,24

Mean runoff

950mm/an

Mean elev. (basins)

65m

Watersheds crossing here

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

Human pressure

Pop. density

6hab/km²

Night light

2,0nW

Built-up

313,2%

Pesticides

9,4kg/km²

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

Protected areas4

IUCN Not Reported · 2IUCN Not Applicable · 1IUCN IV · 1

Hoa Lu

IUCN Not Reported

Cultural and Historical Site · 2014

65 km²

Van Long

IUCN Not Reported

Nature Reserve · 2001

34 km²

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

Sub-administrations16