Ontologia

HydroBASINS lev08 watershed · #4080842110

Bassin de Lachen Chu

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 1 administrative regions : North Sikkim

Pfafstetter: 45253047

Sub-basin area

300,5km²

Upstream area

2 019,7km²

Discharge

39,86m³/s

Mean elev.

3 645m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Chakung Glong Chu329 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 102 distinct species · 14 468 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 468 obs · 8 cellules
Obs. / cellule
≥ 10 958
10 958–10 957
1 267–10 957
700–1 266
< 700

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 21 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 Bassin de Lachen Chu : 17 espèces reliées par 20 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
20
Connectance
0.095
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

4,9°C

Annual rain

801mm

Moisture idx (CMI)

-0,17

Runoff

696mm/an

PET

873mm

AET

586mm

Mean slope

30,6°

Water table

1 098cm

Forest

71%

Crops

4%

Urban

0%

Protected

26%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)