Ontologia

Commune · CHN

Gai

China

DwaCold, dry winter, hot summer(96 %)

Species observed

445

Observations

1 430

Area

3 115,3km²

Ecological tissue

Sample of 17 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 Gai : 14 espèces reliées par 11 interactions GloBI sur 2 types (connectance 8.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
11
Connectance
0.081
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

445 distinct species · 1 430 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 430 obs · 19 cellules
Obs. / cellule
≥ 1 206
70–1 205
16–69
3–15
< 3

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

Climate

Mean T°

8,9°C

Annual rain

703mm

Warmest m°

27,0°C

Coldest m°

-13,9°C

Elevation: 216 m on average (min -51 m, max 819 m)

Bioclimatic detailsExpert
Annual mean temp.
8,9°C
Annual rain
703mm
Warmest month
27,0°C
Coldest month
-13,9°C
Mean alt.
216m
Min
-51m
Max
819m
Std. dev.
169m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(96 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,5

Org. C

19,6g/kg

Clay

20,0%

Sand

43,5%

Silt

36,5%

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

Dominant lithology: paGLiMaggregated to Tieling

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
32,3g/kg
Clay
18,9%
Sand
44,2%
Silt
36,9%
5–15 cm
pH H₂O
6,5
Org. C
15,7g/kg
Clay
19,2%
Sand
44,1%
Silt
36,6%
15–30 cm
pH H₂O
6,5
Org. C
10,8g/kg
Clay
21,9%
Sand
42,1%
Silt
36,0%

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

Land cover

Forest31.6%
Crops26.4%
Built-up2.4%
Bare soil2.0%
Other (grassland, water…)37.5%

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

Hydrology12 basins · 6 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

226,2km

Lake surface here

3,38km²

Basins crossed

12

Max stream order

4

Max drainage

2 066km²

Discharge in basins

24,3m³/s

Mean precip.

719mm/an

Mean T°

8,1°C

Moisture idx

-0,14

Max snow

7%

Mean runoff

200mm/an

Mean elev. (basins)

219m

Watersheds crossing here

3 more basins

Lakes (6, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

1,3nW

Built-up

241,4%

Pesticides

79,3kg/km²

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