Ontologia

Commune · CHN

Bayan

China

DwaCold, dry winter, hot summer(99 %)

Species observed

7

Observations

8

Area

3 131,4km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 3 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 Bayan : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

7 distinct species · 8 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 obs · 4 cellules
Obs. / cellule
≥ 4
4–3
2–3
2–1
< 2

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

Climate

Mean T°

3,6°C

Annual rain

597mm

Warmest m°

26,3°C

Coldest m°

-26,1°C

Elevation: 169 m on average (min 109 m, max 394 m)

Bioclimatic detailsExpert
Annual mean temp.
3,6°C
Annual rain
597mm
Warmest month
26,3°C
Coldest month
-26,1°C
Mean alt.
169m
Min
109m
Max
394m
Std. dev.
38m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(99 %)Cold

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

Soil & lithology

pH H₂O

6,5

Org. C

31,8g/kg

Clay

30,7%

Sand

24,1%

Silt

45,2%

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

Dominant lithology: paGLiMaggregated to Harbin

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
41,7g/kg
Clay
30,5%
Sand
24,1%
Silt
45,4%
5–15 cm
pH H₂O
6,5
Org. C
31,3g/kg
Clay
30,3%
Sand
24,4%
Silt
45,3%
15–30 cm
pH H₂O
6,5
Org. C
22,4g/kg
Clay
31,2%
Sand
24,0%
Silt
44,8%

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

Land cover

Forest10.4%
Crops58.6%
Built-up1.1%
Bare soil0.3%
Other (grassland, water…)29.5%

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

Hydrology4 basins · 6 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

279,8km

Lake surface here

10,01km²

Basins crossed

4

Max stream order

8

Max drainage

440 114km²

Discharge in basins

362,3m³/s

Mean precip.

581mm/an

Mean T°

2,6°C

Moisture idx

-0,29

Max snow

23%

Mean runoff

160mm/an

Mean elev. (basins)

170m

Watersheds crossing here

Lakes (6, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,2nW

Built-up

115,1%

Pesticides

79,8kg/km²

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