Ontologia

Prefecture City · CHN

Langfang

China

BSkArid, steppe, cold(95 %)

Species observed

341

Observations

1 368

Area

6 397,7km²

Ecological tissue

Sample of 44 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 Langfang : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 6 types (connectance 7.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
79
Connectance
0.076
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

341 distinct species · 1 368 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 368 obs · 66 cellules
Obs. / cellule
≥ 896
22–895
6–21
3–5
< 3

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

Climate

Mean T°

13,4°C

Annual rain

552mm

Warmest m°

31,5°C

Coldest m°

-7,9°C

Elevation: 12 m on average (min 1 m, max 319 m)

Bioclimatic detailsExpert
Annual mean temp.
13,4°C
Annual rain
552mm
Warmest month
31,5°C
Coldest month
-7,9°C
Mean alt.
12m
Min
1m
Max
319m
Std. dev.
17m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(95 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

10,5g/kg

Clay

21,9%

Sand

37,6%

Silt

40,5%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
13,8g/kg
Clay
21,7%
Sand
37,9%
Silt
40,4%
5–15 cm
pH H₂O
8,0
Org. C
8,7g/kg
Clay
21,2%
Sand
38,1%
Silt
40,7%
15–30 cm
pH H₂O
8,0
Org. C
9,1g/kg
Clay
22,8%
Sand
36,9%
Silt
40,3%

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

Land cover

Forest5.4%
Crops52.9%
Built-up6.0%
Bare soil2.8%
Other (grassland, water…)32.8%

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

Hydrology25 basins · 0 lakes · 47 rivers

Hydrology metrics for this exact territory

Stream length here

941,0km

Basins crossed

25

Max stream order

7

Max drainage

139 831km²

Discharge in basins

288,2m³/s

Mean precip.

528mm/an

Mean T°

12,2°C

Moisture idx

-0,50

Max snow

1%

Mean runoff

34mm/an

Mean elev. (basins)

42m

Watersheds crossing here

16 more basins

Rivers / streams (47, ord ≥ 4)

35 more river segments

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

Human pressure

Pop. density

5hab/km²

Night light

4,3nW

Built-up

596,4%

Pesticides

70,1kg/km²

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

Sub-administrations9