Ontologia

Commune · CHN

Qian'an

China

DwaCold, dry winter, hot summer(100 %)

Species observed

70

Observations

102

Area

1 230km²

Ecological tissue

Sample of 26 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'an : 23 espèces reliées par 23 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
23
Connectance
0.071
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

70 distinct species · 102 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

102 obs · 6 cellules
Obs. / cellule
≥ 32
32–31
30–31
15–29
< 15

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

Climate

Mean T°

11,2°C

Annual rain

660mm

Warmest m°

29,7°C

Coldest m°

-11,3°C

Elevation: 101 m on average (min 31 m, max 465 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
660mm
Warmest month
29,7°C
Coldest month
-11,3°C
Mean alt.
101m
Min
31m
Max
465m
Std. dev.
58m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(100 %)Cold

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

Soil & lithology

pH H₂O

7,6

Org. C

10,8g/kg

Clay

18,1%

Sand

48,5%

Silt

33,4%

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

Dominant lithology: scGLiMaggregated to Tangshan

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
15,5g/kg
Clay
16,7%
Sand
49,6%
Silt
33,8%
5–15 cm
pH H₂O
7,6
Org. C
8,9g/kg
Clay
18,2%
Sand
48,3%
Silt
33,4%
15–30 cm
pH H₂O
7,6
Org. C
7,9g/kg
Clay
19,5%
Sand
47,5%
Silt
33,0%

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

Land cover

Forest12.5%
Crops33.8%
Built-up5.3%
Bare soil3.6%
Other (grassland, water…)44.8%

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

Hydrology8 basins · 2 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

257,2km

Lake surface here

0,97km²

Basins crossed

8

Max stream order

6

Max drainage

45 725km²

Discharge in basins

33,1m³/s

Mean precip.

657mm/an

Mean T°

10,0°C

Moisture idx

-0,35

Max snow

2%

Mean runoff

100mm/an

Mean elev. (basins)

190m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

4hab/km²

Night light

3,3nW

Built-up

527,2%

Pesticides

75,2kg/km²

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