Ontologia

Commune · CHN

Pi

China

CwaTemperate, dry winter, hot summer(100 %)

Species observed

202

Observations

1 166

Area

419,7km²

Ecological tissue

Sample of 44 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 Pi : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 4.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
46
Connectance
0.049
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

202 distinct species · 1 166 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 166 obs · 11 cellules
Obs. / cellule
≥ 455
343–454
95–342
29–94
< 29

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

Climate

Mean T°

16,8°C

Annual rain

994mm

Warmest m°

28,9°C

Coldest m°

2,1°C

Elevation: 567 m on average (min 510 m, max 640 m)

Bioclimatic detailsExpert
Annual mean temp.
16,8°C
Annual rain
994mm
Warmest month
28,9°C
Coldest month
2,1°C
Mean alt.
567m
Min
510m
Max
640m
Std. dev.
31m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, 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

6,8

Org. C

25,9g/kg

Clay

27,1%

Sand

23,2%

Silt

49,7%

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

Dominant lithology: scGLiMaggregated to Chengdu

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
46,5g/kg
Clay
26,0%
Sand
23,2%
Silt
50,7%
5–15 cm
pH H₂O
6,8
Org. C
18,1g/kg
Clay
26,9%
Sand
23,4%
Silt
49,7%
15–30 cm
pH H₂O
6,8
Org. C
13,2g/kg
Clay
28,4%
Sand
23,0%
Silt
48,6%

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

Land cover

Forest14.6%
Crops37.4%
Built-up7.6%
Bare soil1.7%
Other (grassland, water…)38.7%

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

Hydrology4 basins · 0 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

101,8km

Basins crossed

4

Max stream order

4

Max drainage

23 543km²

Discharge in basins

11,5m³/s

Mean precip.

1 015mm/an

Mean T°

16,2°C

Moisture idx

-0,02

Max snow

5%

Mean runoff

568mm/an

Mean elev. (basins)

570m

Watersheds crossing here

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

Human pressure

Pop. density

15hab/km²

Night light

9,9nW

Built-up

759,7%

Pesticides

68,1kg/km²

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