Ontologia

Commune · CHN

Siyang

China

CwaTemperate, dry winter, hot summer(76 %)

Species observed

26

Observations

41

Area

1 742,6km²

Ecological tissue

Sample of 6 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 Siyang : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 26.7%, filtre Serrano α=0.2).

Espèces affichées
6
Interactions affichées
4
Connectance
0.267
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

26 distinct species · 41 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

41 obs · 13 cellules
Obs. / cellule
≥ 14
5–13
4–4
2–3
< 2

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

Climate

Mean T°

15,0°C

Annual rain

974mm

Warmest m°

30,7°C

Coldest m°

-3,2°C

Elevation: 14 m on average (min 8 m, max 27 m)

Bioclimatic detailsExpert
Annual mean temp.
15,0°C
Annual rain
974mm
Warmest month
30,7°C
Coldest month
-3,2°C
Mean alt.
14m
Min
8m
Max
27m
Std. dev.
4m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(76 %)Temperate

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

Soil & lithology

pH H₂O

7,9

Org. C

9,2g/kg

Clay

29,6%

Sand

24,8%

Silt

45,6%

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

Dominant lithology: suGLiMaggregated to Suqian

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
13,9g/kg
Clay
29,4%
Sand
24,9%
Silt
45,7%
5–15 cm
pH H₂O
8,0
Org. C
7,7g/kg
Clay
29,8%
Sand
24,7%
Silt
45,5%
15–30 cm
pH H₂O
8,0
Org. C
6,0g/kg
Clay
29,6%
Sand
24,9%
Silt
45,5%

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

Land cover

Forest3.4%
Crops57.2%
Built-up3.0%
Bare soil2.3%
Other (grassland, water…)34.1%

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

Hydrology7 basins · 8 lakes · 36 rivers

Hydrology metrics for this exact territory

Stream length here

319,2km

Lake surface here

237,65km²

Basins crossed

7

Max stream order

4

Max drainage

55 264km²

Discharge in basins

76,8m³/s

Mean precip.

832mm/an

Mean T°

14,6°C

Moisture idx

-0,22

Max snow

3%

Mean runoff

254mm/an

Mean elev. (basins)

13m

Watersheds crossing here

Lakes (8, top by area)

Rivers / streams (36, ord ≥ 4)

24 more river segments

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

Human pressure

Pop. density

5hab/km²

Night light

1,7nW

Built-up

300,6%

Pesticides

75,1kg/km²

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