Na Hang
IUCN IVNature Reserve · 1994
239 km²
District · VNM
Chiêm Hóa
Vietnam
CwaTemperate, dry winter, hot summer(100 %)
Species observed
60
Observations
108
Area
1 275,7km²
Ecological tissue
Sample of 17 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 Chiêm Hóa : 14 espèces reliées par 18 interactions GloBI sur 3 types (connectance 13.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
17
Interactions affichées
18
Connectance
0.132
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
60 distinct species · 108 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
22,6°C
Annual rain
2 443mm
Warmest m°
30,1°C
Coldest m°
11,8°C
Elevation: 268 m on average (min 41 m, max 1 156 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
22,6°C
Annual rain
2 443mm
Warmest month
30,1°C
Coldest month
11,8°C
Mean alt.
268m
Min
41m
Max
1 156m
Std. dev.
196m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,5
Org. C
26,5g/kg
Clay
33,5%
Sand
26,5%
Silt
40,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,5
Org. C
38,7g/kg
Clay
33,1%
Sand
27,2%
Silt
39,7%
5–15 cm
pH H₂O
5,5
Org. C
24,5g/kg
Clay
32,2%
Sand
27,1%
Silt
40,6%
15–30 cm
pH H₂O
5,6
Org. C
16,3g/kg
Clay
35,3%
Sand
25,1%
Silt
39,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest68.7%
Crops4.8%
Built-up0.3%
Bare soil0.8%
Other (grassland, water…)25.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
82,0km
Basins crossed
7
Max stream order
6
Max drainage
14 973km²
Discharge in basins
447,8m³/s
Mean precip.
1 744mm/an
Mean T°
22,2°C
Moisture idx
0,24
Mean runoff
1 042mm/an
Mean elev. (basins)
308m
Watersheds crossing here
- Basin #03490sub-area731,5 km²overlap476.54 km²37%
- Bassin de Sông Gâmsub-area649,2 km²overlap374.10 km²29%
- Bassin de Sông Gâmsub-area720,7 km²overlap318.70 km²25%
- Bassin de Sông Lôsub-area1 033,1 km²overlap103.84 km²8%
- Bassin de Sông Phó Đáysub-area1 895,2 km²overlap1.47 km²0%
- Bassin de Sông Lôsub-area1 743,2 km²overlap0.98 km²0%
- Bassin de Sông Gâmsub-area2 460,7 km²overlap0.07 km²0%
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
31,6%
Pesticides
8,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN IV · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN