Heilongjiang Hadong Yanjiang Wetlands
IUCN IbWetland of International Importance (Ramsar Site) · 2020
97 km²
Commune · CHN
Acheng
China
DwaCold, dry winter, hot summer(84 %)
Species observed
413
Observations
1 868
Area
2 757,3km²
Ecological tissue
Sample of 36 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 Acheng : 30 espèces reliées par 41 interactions GloBI sur 4 types (connectance 6.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
41
Connectance
0.065
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
413 distinct species · 1 868 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
3,9°C
Annual rain
627mm
Warmest m°
26,1°C
Coldest m°
-24,9°C
Elevation: 242 m on average (min 114 m, max 775 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
3,9°C
Annual rain
627mm
Warmest month
26,1°C
Coldest month
-24,9°C
Mean alt.
242m
Min
114m
Max
775m
Std. dev.
110m
Köppen-Geiger (dominant)
DwaCold, dry winter, hot summer(84 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,4
Org. C
43,1g/kg
Clay
29,3%
Sand
23,6%
Silt
47,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Harbin
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,3
Org. C
63,2g/kg
Clay
28,8%
Sand
23,9%
Silt
47,4%
5–15 cm
pH H₂O
6,4
Org. C
38,8g/kg
Clay
28,6%
Sand
23,9%
Silt
47,6%
15–30 cm
pH H₂O
6,4
Org. C
27,5g/kg
Clay
30,5%
Sand
23,1%
Silt
46,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest37.7%
Crops33.4%
Built-up1.3%
Bare soil0.3%
Other (grassland, water…)27.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 4 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
299,1km
Lake surface here
4,22km²
Basins crossed
8
Max stream order
8
Max drainage
435 594km²
Discharge in basins
536,9m³/s
Mean precip.
611mm/an
Mean T°
2,8°C
Moisture idx
-0,26
Max snow
22%
Mean runoff
153mm/an
Mean elev. (basins)
248m
Watersheds crossing here
- Bassin de 阿什河sub-area3 522,5 km²overlap2270.37 km²82%
- Bassin de 蜚克图河sub-area1 118,3 km²overlap224.81 km²8%
- Bassin de 松花江sub-area542,7 km²overlap136.30 km²5%
- Bassin de 松花江sub-area1 329,6 km²overlap63.81 km²2%
- Bassin de 松花江sub-area932,1 km²overlap45.07 km²2%
- Bassin de 拉林河sub-area460,3 km²overlap16.88 km²1%
- Bassin de 双汾河sub-area930,5 km²overlap0.02 km²0%
- Bassin de 松花江sub-area428,9 km²overlap0.00 km²0%
Lakes (4, top by area)
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,7nW
Built-up
129,3%
Pesticides
74,3kg/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