Ontologia

Commune · CHN

Yichuan

China

CwaTemperate, dry winter, hot summer(83 %)

Species observed

104

Observations

157

Area

1 059,2km²

Ecological tissue

Sample of 40 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 Yichuan : 33 espèces reliées par 43 interactions GloBI sur 4 types (connectance 5.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
43
Connectance
0.055
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

104 distinct species · 157 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

157 obs · 14 cellules
Obs. / cellule
≥ 73
46–72
3–45
2–2
< 2

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

Climate

Mean T°

14,3°C

Annual rain

671mm

Warmest m°

30,8°C

Coldest m°

-4,6°C

Elevation: 330 m on average (min 161 m, max 788 m)

Bioclimatic detailsExpert
Annual mean temp.
14,3°C
Annual rain
671mm
Warmest month
30,8°C
Coldest month
-4,6°C
Mean alt.
330m
Min
161m
Max
788m
Std. dev.
104m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(83 %)Temperate

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

Soil & lithology

pH H₂O

7,8

Org. C

12,3g/kg

Clay

26,7%

Sand

23,3%

Silt

50,0%

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
7,8
Org. C
19,9g/kg
Clay
25,9%
Sand
23,8%
Silt
50,3%
5–15 cm
pH H₂O
7,8
Org. C
9,8g/kg
Clay
26,3%
Sand
23,5%
Silt
50,2%
15–30 cm
pH H₂O
7,9
Org. C
7,3g/kg
Clay
28,0%
Sand
22,7%
Silt
49,4%

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

Land cover

Forest8.3%
Crops52.8%
Built-up3.3%
Bare soil2.8%
Other (grassland, water…)32.9%

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

Hydrology7 basins · 2 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

130,8km

Lake surface here

0,94km²

Basins crossed

7

Max stream order

4

Max drainage

10 200km²

Discharge in basins

20,9m³/s

Mean precip.

665mm/an

Mean T°

13,0°C

Moisture idx

-0,44

Max snow

1%

Mean runoff

132mm/an

Mean elev. (basins)

429m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

5hab/km²

Night light

1,4nW

Built-up

325,0%

Pesticides

79,6kg/km²

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