Ontologia

Commune · CHN

Ya An

China

CwaTemperate, dry winter, hot summer(85 %)

Species observed

940

Observations

3 756

Area

1 054,5km²

Ecological tissue

Sample of 33 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 Ya An : 30 espèces reliées par 33 interactions GloBI sur 4 types (connectance 5.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
33
Connectance
0.059
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

940 distinct species · 3 756 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 756 obs · 29 cellules
Obs. / cellule
≥ 1 188
570–1 187
54–569
13–53
< 13

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

Climate

Mean T°

14,1°C

Annual rain

1 894mm

Warmest m°

25,9°C

Coldest m°

-0,5°C

Elevation: 1 032 m on average (min 542 m, max 2 317 m)

Bioclimatic detailsExpert
Annual mean temp.
14,1°C
Annual rain
1 894mm
Warmest month
25,9°C
Coldest month
-0,5°C
Mean alt.
1 032m
Min
542m
Max
2 317m
Std. dev.
297m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(85 %)Temperate

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

Soil & lithology

pH H₂O

5,7

Org. C

36,4g/kg

Clay

27,8%

Sand

27,3%

Silt

44,8%

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

Dominant lithology: smGLiMaggregated to Ya'an

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
54,9g/kg
Clay
27,2%
Sand
27,7%
Silt
45,1%
5–15 cm
pH H₂O
5,7
Org. C
30,6g/kg
Clay
27,5%
Sand
27,4%
Silt
45,1%
15–30 cm
pH H₂O
5,7
Org. C
23,5g/kg
Clay
28,7%
Sand
26,9%
Silt
44,3%

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

Land cover

Forest66.2%
Crops10.8%
Built-up0.6%
Bare soil0.3%
Other (grassland, water…)22.1%

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

Hydrology9 basins · 1 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

202,1km

Lake surface here

0,12km²

Basins crossed

9

Max stream order

6

Max drainage

12 933km²

Discharge in basins

296,1m³/s

Mean precip.

1 398mm/an

Mean T°

14,8°C

Moisture idx

0,26

Max snow

12%

Mean runoff

898mm/an

Mean elev. (basins)

1 176m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

3hab/km²

Night light

0,8nW

Built-up

56,6%

Pesticides

77,2kg/km²

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