Asan Conservation Reserve
IUCN IVWetland of International Importance (Ramsar Site) · 2020
4 km²
Commune · IND
Dehra Dun
India
CwaTemperate, dry winter, hot summer(95 %)
Species observed
2 981
Observations
996 855
Area
1 879,9km²
Ecological tissue
Sample of 28 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 Dehra Dun : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
28
Interactions affichées
34
Connectance
0.090
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 981 distinct species · 996 855 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
20,8°C
Annual rain
2 304mm
Warmest m°
33,2°C
Coldest m°
4,4°C
Elevation: 716 m on average (min 295 m, max 2 242 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
20,8°C
Annual rain
2 304mm
Warmest month
33,2°C
Coldest month
4,4°C
Mean alt.
716m
Min
295m
Max
2 242m
Std. dev.
365m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(95 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,1
Org. C
31,2g/kg
Clay
25,5%
Sand
35,3%
Silt
39,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Dehradun
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
45,9g/kg
Clay
24,0%
Sand
36,0%
Silt
40,1%
5–15 cm
pH H₂O
6,1
Org. C
31,6g/kg
Clay
24,9%
Sand
35,4%
Silt
39,7%
15–30 cm
pH H₂O
6,1
Org. C
16,2g/kg
Clay
27,5%
Sand
34,4%
Silt
38,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest57.6%
Crops17.1%
Built-up2.7%
Bare soil0.7%
Other (grassland, water…)21.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology16 basins · 3 lakes · 35 rivers
Hydrology metrics for this exact territory
Stream length here
448,7km
Lake surface here
1,89km²
Basins crossed
16
Max stream order
6
Max drainage
23 574km²
Discharge in basins
461,6m³/s
Mean precip.
1 957mm/an
Mean T°
20,9°C
Moisture idx
0,25
Max snow
6%
Mean runoff
611mm/an
Mean elev. (basins)
834m
Watersheds crossing here
- Bassin de Song Riversub-area1 049,4 km²overlap827.43 km²44%
- Bassin de Tons Nadisub-area679 km²overlap675.50 km²36%
- Bassin de Yamunasub-area2 350,9 km²overlap97.18 km²5%
- Bassin de Gangasub-area518,9 km²overlap91.60 km²5%
- Bassin de Yamunasub-area131,6 km²overlap84.37 km²4%
- Bassin de Solanisub-area2 009,3 km²overlap35.66 km²2%
- Bassin de Gangasub-area307,6 km²overlap25.65 km²1%
- Bassin de Yamunasub-area51,7 km²overlap22.72 km²1%
- Bassin de Yamunasub-area217,9 km²overlap8.47 km²0%
7 more basinssorted by overlap
- Bassin de Spillwaysub-area357,2 km²overlap5.02 km²0%
- Bassin de Yamunasub-area7,9 km²overlap4.01 km²0%
- Bassin de Yamunasub-area279,2 km²overlap0.89 km²0%
- Bassin de Girisub-area2 616,5 km²overlap0.69 km²0%
- Bassin de Tonssub-area1 710,9 km²overlap0.34 km²0%
- Bassin de Bata Nadisub-area269,4 km²overlap0.33 km²0%
- Bassin de Hindon Riversub-area1 575,5 km²overlap0.01 km²0%
Lakes (3, top by area)
Rivers / streams (35, ord ≥ 4)
- Song Riverord 6len here87.90 km93%total95 km
- Tons Nadiord 3len here58.70 km100%total59 km
- Yamunaord 8len here44.84 km2%total2174 km
- Saswa Nadiord 3len here37.33 km100%total37 km
- Jakhan Raoord 3len here27.20 km96%total28 km
- Mauti Nadiord 3len here19.47 km100%total19 km
- Songord 3len here17.97 km68%total26 km
- Syaru Khalaord 1len here17.86 km100%total18 km
- Bindal Nalaord 2len here16.22 km100%total16 km
- Tonsord 6len here15.03 km3%total457 km
- Rispana Nalaord 1len here14.26 km100%total14 km
- Bared Khalaord 1len here10.59 km100%total11 km
23 more river segmentssorted by Strahler order + length
- Koti Nadiord 1len here9.45 km100%total9 km
- Rispana Raoord 2len here8.15 km100%total8 km
- Chor Khalaord 1len here7.47 km100%total7 km
- Chandrabhagaord 2len here5.97 km28%total21 km
- Bin Nadiord 1len here4.83 km100%total5 km
- Nala Pani ki Raoord 1len here4.44 km100%total4 km
- Sera Gadord 5len here4.31 km15%total28 km
- Gangaord 8len here4.27 km0%total2435 km
- Naro Nadiord 1len here4.00 km100%total4 km
- Kiarkuli Nalaord 1len here3.85 km100%total4 km
- Kali Gadord 2len here3.67 km6%total58 km
- Bhitarli Nadiord 1len here3.06 km100%total3 km
- Gauna Nadiord 1len here2.94 km100%total3 km
- Nun Nadiord 2len here2.68 km100%total3 km
- Chiphaldi Nord 2len here2.63 km19%total14 km
- Bandal Nadiord 2len here2.13 km12%total18 km
- Simlet ka Khalaord 1len here1.61 km100%total2 km
- Suarna Nadiord 3len here1.41 km100%total1 km
- Aglad Nadiord 4len here1.35 km5%total26 km
- Giriord 4len here1.18 km1%total173 km
- Amlawa Nadiord 4len here1.08 km5%total22 km
- Bata Nadiord 3len here0.77 km2%total32 km
- Patal Gadord 3len here≈ tangenttotal12 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
7hab/km²
Night light
3,9nW
Built-up
265,9%
Pesticides
1,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN IV · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN