Ontologia

Commune · CHN

Ji An

China

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

Species observed

423

Observations

797

Area

517,6km²

Ecological tissue

Sample of 31 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 Ji An : 29 espèces reliées par 28 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
28
Connectance
0.057
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

423 distinct species · 797 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

797 obs · 9 cellules
Obs. / cellule
≥ 371
371–370
88–370
56–87
< 56

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

Climate

Mean T°

19,3°C

Annual rain

1 802mm

Warmest m°

33,6°C

Coldest m°

3,1°C

Elevation: 81 m on average (min 45 m, max 368 m)

Bioclimatic detailsExpert
Annual mean temp.
19,3°C
Annual rain
1 802mm
Warmest month
33,6°C
Coldest month
3,1°C
Mean alt.
81m
Min
45m
Max
368m
Std. dev.
40m
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

5,9

Org. C

13,6g/kg

Clay

25,9%

Sand

30,3%

Silt

43,9%

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

Dominant lithology: ssGLiMaggregated to Ji'an

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
18,7g/kg
Clay
25,4%
Sand
30,8%
Silt
43,8%
5–15 cm
pH H₂O
5,9
Org. C
12,8g/kg
Clay
26,0%
Sand
30,1%
Silt
44,0%
15–30 cm
pH H₂O
5,9
Org. C
9,2g/kg
Clay
26,2%
Sand
30,0%
Silt
43,8%

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

Land cover

Forest24.8%
Crops33.0%
Built-up3.6%
Bare soil2.9%
Other (grassland, water…)35.8%

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

Hydrology7 basins · 6 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

105,3km

Lake surface here

3,45km²

Basins crossed

7

Max stream order

7

Max drainage

61 071km²

Discharge in basins

2 466,6m³/s

Mean precip.

1 465mm/an

Mean T°

18,6°C

Moisture idx

0,17

Mean runoff

900mm/an

Mean elev. (basins)

93m

Watersheds crossing here

Lakes (6, top by area)

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

Human pressure

Pop. density

7hab/km²

Night light

4,3nW

Built-up

363,2%

Pesticides

63,7kg/km²

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