Commune · IND
Alipur Duar
India
Species observed
1 674
Observations
62 211
Area
2 801,8km²
Ecological tissue
Sample of 22 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).
Indicateurs du tissu écologique
Tissu écologique de Alipur Duar : 19 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 674 distinct species · 62 211 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,2°C
Annual rain
3 790mm
Warmest m°
30,3°C
Coldest m°
12,3°C
Elevation: 128 m on average (min 39 m, max 1 558 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,4
Org. C
21,3g/kg
Clay
27,4%
Sand
42,6%
Silt
30,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Alipurduar
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 0 lakes · 21 rivers
Hydrology metrics for this exact territory
Stream length here
500,7km
Basins crossed
7
Max stream order
5
Max drainage
11 414km²
Discharge in basins
173,7m³/s
Mean precip.
3 405mm/an
Mean T°
21,6°C
Moisture idx
0,55
Max snow
8%
Mean runoff
1 290mm/an
Mean elev. (basins)
542m
Watersheds crossing here
- Bassin de Kāljāni Riversub-area1 483,1 km²overlap1099.35 km²39%
- Bassin de Hollong Riversub-area563 km²overlap491.85 km²18%
- Bassin de Torsa riversub-area852,6 km²overlap371.06 km²13%
- Bassin de Wang Chhusub-area5 221 km²overlap335.29 km²12%
- Bassin de Sankosh Riversub-area2 395,6 km²overlap320.45 km²11%
- Bassin de Jaldhakasub-area621,6 km²overlap182.05 km²6%
- Bassin de Jaldhakasub-area347,1 km²overlap1.72 km²0%
Rivers / streams (21, ord ≥ 4)
- Hollong Riverord 3len here68.91 km85%total81 km
- Torsa riverord 5len here65.73 km41%total160 km
- Wang Chhuord 5len here54.79 km29%total188 km
- Sankosh Riverord 5len here40.65 km28%total146 km
- Raidak 2ord 5len here40.12 km69%total58 km
- Kaljani Riverord 3len here39.17 km100%total39 km
- Checkoord 4len here37.82 km100%total38 km
- Jayantiord 3len here35.50 km97%total37 km
- Raydak-II Riverord 3len here27.27 km89%total31 km
- Kaljaniord 3len here21.18 km100%total21 km
- Alaikur Riverord 2len here18.77 km100%total19 km
- Kāljāni Riverord 5len here15.31 km30%total50 km
9 more river segmentssorted by Strahler order + length
- Gadadharord 3len here13.14 km100%total13 km
- Jaldhakaord 5len here5.15 km2%total317 km
- Dima nadiord 4len here4.35 km100%total4 km
- Tangreykholaord 1len here4.34 km100%total4 km
- Kalikhola Riverord 2len here3.46 km34%total10 km
- Puna Tsang Chhuord 5len here2.33 km1%total258 km
- ཨ་མོ་ཆུ་ord 4len here1.40 km1%total119 km
- Jorai Nadiord 1len here1.09 km12%total9 km
- Basra Riverord 2len here0.20 km1%total31 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
4hab/km²
Night light
0,5nW
Built-up
91,1%
Pesticides
2,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)