Na Hang
IUCN IVNature Reserve · 1994
239 km²
District · VNM
Chợ Đồn
Vietnam
CwaTemperate, dry winter, hot summer(100 %)
Species observed
283
Observations
452
Area
912km²
Ecological tissue
Sample of 35 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 Chợ Đồn : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 4 types (connectance 4.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
35
Interactions affichées
27
Connectance
0.045
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
283 distinct species · 452 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
21,3°C
Annual rain
2 207mm
Warmest m°
28,8°C
Coldest m°
10,3°C
Elevation: 472 m on average (min 229 m, max 1 197 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
21,3°C
Annual rain
2 207mm
Warmest month
28,8°C
Coldest month
10,3°C
Mean alt.
472m
Min
229m
Max
1 197m
Std. dev.
188m
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
27,8g/kg
Clay
32,5%
Sand
25,6%
Silt
42,0%
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
41,1g/kg
Clay
32,1%
Sand
26,1%
Silt
41,8%
5–15 cm
pH H₂O
5,5
Org. C
25,2g/kg
Clay
31,1%
Sand
26,3%
Silt
42,6%
15–30 cm
pH H₂O
5,5
Org. C
17,0g/kg
Clay
34,2%
Sand
24,2%
Silt
41,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest78.5%
Crops1.8%
Built-up0.1%
Bare soil0.2%
Other (grassland, water…)19.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology6 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
64,1km
Basins crossed
6
Max stream order
4
Max drainage
14 973km²
Discharge in basins
97,8m³/s
Mean precip.
1 686mm/an
Mean T°
21,7°C
Moisture idx
0,23
Mean runoff
849mm/an
Mean elev. (basins)
368m
Watersheds crossing here
- Bassin de Sông Phó Đáysub-area1 895,2 km²overlap347.74 km²38%
- Bassin de Sông Năngsub-area2 298,5 km²overlap272.10 km²30%
- Bassin de Sông Gâmsub-area720,7 km²overlap157.22 km²17%
- Bassin de Sông Cầusub-area1 225,5 km²overlap126.02 km²14%
- Bassin de Sông Chợ Chusub-area439,7 km²overlap6.77 km²1%
- Bassin de Sông Gâmsub-area649,2 km²overlap2.16 km²0%
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
6,7%
Pesticides
8,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN Not Reported · 3IUCN IV · 1
Ba Be
IUCN Not ReportedNational Park · 1992
99 km²
Ba Be
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2011
99 km²
Nam Xuan Lac
IUCN Not ReportedNature Reserve · 2004
16 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN