Ontologia

Commune · CHN

Qian

China

DwaCold, dry winter, hot summer(43 %)

Species observed

58

Observations

109

Area

1 129,8km²

Ecological tissue

Sample of 23 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 Qian : 23 espèces reliées par 19 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2).

Espèces affichées
23
Interactions affichées
19
Connectance
0.075
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

58 distinct species · 109 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

109 obs · 9 cellules
Obs. / cellule
≥ 56
56–55
12–55
2–11
< 2

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

Climate

Mean T°

13,5°C

Annual rain

545mm

Warmest m°

29,6°C

Coldest m°

-4,7°C

Elevation: 729 m on average (min 528 m, max 1 309 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
545mm
Warmest month
29,6°C
Coldest month
-4,7°C
Mean alt.
729m
Min
528m
Max
1 309m
Std. dev.
154m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(43 %)Cold

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

14,0g/kg

Clay

25,8%

Sand

21,6%

Silt

52,7%

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

Dominant lithology: ssGLiMaggregated to Xianyang

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
23,8g/kg
Clay
24,9%
Sand
22,1%
Silt
53,0%
5–15 cm
pH H₂O
7,9
Org. C
10,1g/kg
Clay
25,4%
Sand
21,7%
Silt
52,9%
15–30 cm
pH H₂O
7,9
Org. C
8,2g/kg
Clay
27,0%
Sand
20,9%
Silt
52,1%

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

Land cover

Forest10.0%
Crops46.0%
Built-up1.9%
Bare soil3.4%
Other (grassland, water…)38.8%

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

Hydrology7 basins · 6 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

109,4km

Lake surface here

8,61km²

Basins crossed

7

Max stream order

4

Max drainage

46 974km²

Discharge in basins

17,6m³/s

Mean precip.

623mm/an

Mean T°

12,4°C

Moisture idx

-0,41

Max snow

2%

Mean runoff

117mm/an

Mean elev. (basins)

875m

Watersheds crossing here

Lakes (6, top by area)

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

Human pressure

Pop. density

3hab/km²

Night light

0,6nW

Built-up

193,2%

Pesticides

72,5kg/km²

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