Ontologia

Commune · CHN

Tianzhen

China

BSkArid, steppe, cold(50 %)

Species observed

93

Observations

107

Area

1 602,6km²

Ecological tissue

Sample of 12 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 Tianzhen : 11 espèces reliées par 8 interactions GloBI sur 2 types (connectance 12.1%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
12
Interactions affichées
8
Connectance
0.121
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

93 distinct species · 107 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

107 obs · 7 cellules
Obs. / cellule
≥ 94
94–93
2–93
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°

6,2°C

Annual rain

451mm

Warmest m°

26,3°C

Coldest m°

-17,9°C

Elevation: 1 277 m on average (min 934 m, max 1 952 m)

Bioclimatic detailsExpert
Annual mean temp.
6,2°C
Annual rain
451mm
Warmest month
26,3°C
Coldest month
-17,9°C
Mean alt.
1 277m
Min
934m
Max
1 952m
Std. dev.
224m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(50 %)Arid

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

Soil & lithology

pH H₂O

8,1

Org. C

13,3g/kg

Clay

19,1%

Sand

44,4%

Silt

36,5%

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

Dominant lithology: scGLiMaggregated to Datong

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
17,8g/kg
Clay
18,2%
Sand
44,8%
Silt
37,0%
5–15 cm
pH H₂O
8,1
Org. C
11,6g/kg
Clay
18,8%
Sand
44,9%
Silt
36,3%
15–30 cm
pH H₂O
8,2
Org. C
10,4g/kg
Clay
20,3%
Sand
43,6%
Silt
36,2%

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

Land cover

Forest5.3%
Crops37.7%
Built-up0.7%
Bare soil4.9%
Other (grassland, water…)51.4%

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

Hydrology11 basins · 1 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

47,0km

Lake surface here

0,01km²

Basins crossed

11

Max stream order

4

Max drainage

25 502km²

Discharge in basins

2,6m³/s

Mean precip.

376mm/an

Mean T°

5,8°C

Moisture idx

-0,59

Max snow

4%

Mean runoff

16mm/an

Mean elev. (basins)

1 212m

Watersheds crossing here

2 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,5nW

Built-up

71,2%

Pesticides

68,0kg/km²

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