Ontologia

City · vnm

Hà Nội

Vietnam

CwaTemperate, dry winter, hot summer(100 %)

Species observed

2 323

Observations

28 331

Area

3 356,7km²

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 Hà Nội : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
28
Connectance
0.064
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

2 323 distinct species · 28 331 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 331 obs · 82 cellules
Obs. / cellule
≥ 8 830
222–8 829
52–221
15–51
< 15

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

Climate

Mean T°

24,0°C

Annual rain

1 859mm

Warmest m°

32,3°C

Coldest m°

13,2°C

Elevation: 23 m on average (min 4 m, max 810 m)

Bioclimatic detailsExpert
Annual mean temp.
24,0°C
Annual rain
1 859mm
Warmest month
32,3°C
Coldest month
13,2°C
Mean alt.
23m
Min
4m
Max
810m
Std. dev.
63m
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

20,1g/kg

Clay

31,5%

Sand

27,0%

Silt

41,5%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
26,3g/kg
Clay
31,0%
Sand
27,7%
Silt
41,3%
5–15 cm
pH H₂O
6,0
Org. C
19,6g/kg
Clay
30,6%
Sand
27,3%
Silt
42,1%
15–30 cm
pH H₂O
6,0
Org. C
14,4g/kg
Clay
32,9%
Sand
26,0%
Silt
41,1%

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

Land cover

Forest18.9%
Crops32.6%
Built-up6.7%
Bare soil1.4%
Other (grassland, water…)40.4%

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

Hydrology16 basins · 29 lakes · 32 rivers

Hydrology metrics for this exact territory

Stream length here

699,6km

Lake surface here

31,11km²

Basins crossed

16

Max stream order

8

Max drainage

138 091km²

Discharge in basins

8 614,0m³/s

Mean precip.

1 709mm/an

Mean T°

23,6°C

Moisture idx

0,23

Mean runoff

919mm/an

Mean elev. (basins)

66m

Watersheds crossing here

7 more basins

Lakes (29, top by area)

20 more lakes

Rivers / streams (32, ord ≥ 4)

20 more river segments

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

Human pressure

Pop. density

18hab/km²

Night light

5,3nW

Built-up

667,9%

Pesticides

8,3kg/km²

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

Protected areas2

IUCN II · 1IUCN V · 1

Ba Vi

IUCN II

National Park · 2003

119 km²

Huong Son

IUCN V

Cultural and Historical Site · 2013

38 km²

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

Sub-administrations180