Ontologia

Commune · CHN

Song

China

DwaCold, dry winter, hot summer(59 %)

Species observed

1 528

Observations

4 455

Area

3 016,6km²

Ecological tissue

Sample of 21 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 Song : 20 espèces reliées par 16 interactions GloBI sur 2 types (connectance 7.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
16
Connectance
0.076
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

1 528 distinct species · 4 455 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 455 obs · 47 cellules
Obs. / cellule
≥ 3 085
54–3 084
8–53
3–7
< 3

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

Climate

Mean T°

12,3°C

Annual rain

809mm

Warmest m°

28,1°C

Coldest m°

-5,6°C

Elevation: 770 m on average (min 244 m, max 1 901 m)

Bioclimatic detailsExpert
Annual mean temp.
12,3°C
Annual rain
809mm
Warmest month
28,1°C
Coldest month
-5,6°C
Mean alt.
770m
Min
244m
Max
1 901m
Std. dev.
309m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(59 %)Cold

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

Soil & lithology

pH H₂O

6,9

Org. C

21,3g/kg

Clay

21,5%

Sand

32,2%

Silt

46,3%

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

Dominant lithology: smGLiMaggregated to Luoyang

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
36,4g/kg
Clay
20,3%
Sand
33,0%
Silt
46,7%
5–15 cm
pH H₂O
6,9
Org. C
17,6g/kg
Clay
21,2%
Sand
32,3%
Silt
46,5%
15–30 cm
pH H₂O
6,9
Org. C
9,9g/kg
Clay
23,1%
Sand
31,2%
Silt
45,8%

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

Land cover

Forest44.1%
Crops14.4%
Built-up0.4%
Bare soil0.7%
Other (grassland, water…)40.4%

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

Hydrology14 basins · 3 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

253,2km

Lake surface here

57,90km²

Basins crossed

14

Max stream order

4

Max drainage

10 200km²

Discharge in basins

29,1m³/s

Mean precip.

732mm/an

Mean T°

11,9°C

Moisture idx

-0,34

Max snow

1%

Mean runoff

175mm/an

Mean elev. (basins)

698m

Watersheds crossing here

5 more basins

Lakes (3, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,2nW

Built-up

39,8%

Pesticides

80,4kg/km²

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