Ontologia

Commune · CHN

Xichuan

China

CwaTemperate, dry winter, hot summer(97 %)

Species observed

663

Observations

1 002

Area

2 775,9km²

Ecological tissue

Sample of 32 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 Xichuan : 26 espèces reliées par 39 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
39
Connectance
0.079
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

663 distinct species · 1 002 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 002 obs · 20 cellules
Obs. / cellule
≥ 700
117–699
20–116
4–19
< 4

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

Climate

Mean T°

15,3°C

Annual rain

948mm

Warmest m°

30,3°C

Coldest m°

-2,7°C

Elevation: 295 m on average (min 132 m, max 818 m)

Bioclimatic detailsExpert
Annual mean temp.
15,3°C
Annual rain
948mm
Warmest month
30,3°C
Coldest month
-2,7°C
Mean alt.
295m
Min
132m
Max
818m
Std. dev.
145m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(97 %)Temperate

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

19,1g/kg

Clay

27,4%

Sand

30,9%

Silt

41,6%

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

Dominant lithology: paGLiMaggregated to Nanyang

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
32,7g/kg
Clay
26,4%
Sand
31,5%
Silt
42,1%
5–15 cm
pH H₂O
6,9
Org. C
14,8g/kg
Clay
27,0%
Sand
31,0%
Silt
42,0%
15–30 cm
pH H₂O
6,9
Org. C
9,9g/kg
Clay
28,9%
Sand
30,3%
Silt
40,8%

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

Land cover

Forest28.7%
Crops25.8%
Built-up0.7%
Bare soil2.9%
Other (grassland, water…)41.8%

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

Hydrology11 basins · 3 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

402,5km

Lake surface here

142,60km²

Basins crossed

11

Max stream order

5

Max drainage

16 149km²

Discharge in basins

191,3m³/s

Mean precip.

821mm/an

Mean T°

14,4°C

Moisture idx

-0,30

Max snow

2%

Mean runoff

238mm/an

Mean elev. (basins)

355m

Watersheds crossing here

2 more basins

Lakes (3, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

0,2nW

Built-up

70,2%

Pesticides

79,6kg/km²

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