Ontologia

Commune · CHN

Hai'an

China

CfaTemperate, no dry season, hot summer(100 %)

Species observed

144

Observations

219

Area

1 132,6km²

Ecological tissue

Sample of 42 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 Hai'an : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 4 types (connectance 5.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
47
Connectance
0.055
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

144 distinct species · 219 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

219 obs · 11 cellules
Obs. / cellule
≥ 55
40–54
31–39
13–30
< 13

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

Climate

Mean T°

15,3°C

Annual rain

1 141mm

Warmest m°

30,8°C

Coldest m°

-1,8°C

Elevation: 4 m on average (min 2 m, max 6 m)

Bioclimatic detailsExpert
Annual mean temp.
15,3°C
Annual rain
1 141mm
Warmest month
30,8°C
Coldest month
-1,8°C
Mean alt.
4m
Min
2m
Max
6m
Std. dev.
1m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, 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

7,7

Org. C

13,9g/kg

Clay

23,0%

Sand

21,6%

Silt

55,5%

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

Dominant lithology: suGLiMaggregated to Nantong

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
19,4g/kg
Clay
22,0%
Sand
22,7%
Silt
55,3%
5–15 cm
pH H₂O
7,7
Org. C
13,0g/kg
Clay
22,4%
Sand
21,7%
Silt
55,9%
15–30 cm
pH H₂O
7,8
Org. C
9,3g/kg
Clay
24,6%
Sand
20,3%
Silt
55,1%

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

Land cover

Forest3.7%
Crops46.3%
Built-up7.4%
Bare soil1.3%
Other (grassland, water…)41.3%

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

Hydrology8 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

130,9km

Basins crossed

8

Max stream order

3

Max drainage

2 523km²

Discharge in basins

9,7m³/s

Mean precip.

1 002mm/an

Mean T°

14,8°C

Moisture idx

-0,02

Max snow

4%

Mean runoff

318mm/an

Mean elev. (basins)

4m

Watersheds crossing here

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

Human pressure

Pop. density

5hab/km²

Night light

3,1nW

Built-up

739,8%

Pesticides

74,0kg/km²

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