Ontologia

Commune · CHN

Xuanhan

China

CwaTemperate, dry winter, hot summer(97 %)

Species observed

154

Observations

292

Area

4 256,3km²

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 Xuanhan : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2).

Espèces affichées
21
Interactions affichées
14
Connectance
0.067
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

154 distinct species · 292 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

292 obs · 18 cellules
Obs. / cellule
≥ 201
31–200
7–30
3–6
< 3

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

Climate

Mean T°

15,4°C

Annual rain

1 526mm

Warmest m°

28,3°C

Coldest m°

-0,2°C

Elevation: 766 m on average (min 329 m, max 2 234 m)

Bioclimatic detailsExpert
Annual mean temp.
15,4°C
Annual rain
1 526mm
Warmest month
28,3°C
Coldest month
-0,2°C
Mean alt.
766m
Min
329m
Max
2 234m
Std. dev.
297m
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

6,2

Org. C

26,8g/kg

Clay

27,6%

Sand

30,1%

Silt

42,3%

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

Dominant lithology: ssGLiMaggregated to Dazhou

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
45,9g/kg
Clay
27,4%
Sand
30,4%
Silt
42,2%
5–15 cm
pH H₂O
6,2
Org. C
19,3g/kg
Clay
27,1%
Sand
30,3%
Silt
42,6%
15–30 cm
pH H₂O
6,2
Org. C
15,1g/kg
Clay
28,2%
Sand
29,7%
Silt
42,1%

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

Land cover

Forest62.9%
Crops17.6%
Built-up0.3%
Bare soil0.3%
Other (grassland, water…)18.9%

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

Hydrology8 basins · 1 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

605,5km

Lake surface here

0,18km²

Basins crossed

8

Max stream order

5

Max drainage

6 877km²

Discharge in basins

195,8m³/s

Mean precip.

1 234mm/an

Mean T°

14,2°C

Moisture idx

0,16

Max snow

6%

Mean runoff

709mm/an

Mean elev. (basins)

921m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

0,3nW

Built-up

30,5%

Pesticides

80,1kg/km²

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