Beijing Yeya Lake Wetlands
IUCN IbWetland of International Importance (Ramsar Site) · 2022
40 km²
Commune · CHN
Huailai
China
BSkArid, steppe, cold(57 %)
Species observed
823
Observations
14 578
Area
1 788,7km²
Ecological tissue
Sample of 24 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 Huailai : 16 espèces reliées par 44 interactions GloBI sur 2 types (connectance 14.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
25
Interactions affichées
44
Connectance
0.147
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
823 distinct species · 14 578 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,7°C
Annual rain
456mm
Warmest m°
27,5°C
Coldest m°
-13,9°C
Elevation: 800 m on average (min 469 m, max 1 785 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,7°C
Annual rain
456mm
Warmest month
27,5°C
Coldest month
-13,9°C
Mean alt.
800m
Min
469m
Max
1 785m
Std. dev.
292m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(57 %)Arid
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
19,9g/kg
Clay
19,4%
Sand
42,8%
Silt
37,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Zhangjiakou
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,5
Org. C
28,5g/kg
Clay
18,5%
Sand
43,5%
Silt
38,1%
5–15 cm
pH H₂O
7,6
Org. C
17,3g/kg
Clay
19,5%
Sand
42,8%
Silt
37,7%
15–30 cm
pH H₂O
7,6
Org. C
13,8g/kg
Clay
20,2%
Sand
42,2%
Silt
37,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest21.3%
Crops24.6%
Built-up1.5%
Bare soil2.1%
Other (grassland, water…)50.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 1 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
143,4km
Lake surface here
75,23km²
Basins crossed
8
Max stream order
6
Max drainage
44 170km²
Discharge in basins
65,9m³/s
Mean precip.
453mm/an
Mean T°
7,9°C
Moisture idx
-0,54
Max snow
1%
Mean runoff
27mm/an
Mean elev. (basins)
814m
Watersheds crossing here
- Bassin de 妫水河sub-area1 672,2 km²overlap595.73 km²33%
- Bassin de 桑干河sub-area534,6 km²overlap465.23 km²26%
- Bassin de 永定河sub-area306,9 km²overlap305.62 km²17%
- Bassin de 永定河sub-area609,6 km²overlap262.94 km²15%
- Basin #45840sub-area558,2 km²overlap83.95 km²5%
- Bassin de 洋河sub-area484,3 km²overlap59.44 km²3%
- Bassin de 红土河sub-area1 248,8 km²overlap15.02 km²1%
- Bassin de 兴隆沟sub-area574,2 km²overlap0.77 km²0%
Lakes (1, top by area)
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
1,0nW
Built-up
145,6%
Pesticides
77,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Ib · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN