Ontologia

HydroBASINS lev08 watershed · #3080657230

Bassin de Чадан

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 3 administrative regions : Dzun-Khemchikskiy rayon, Ovyurskiy rayon, Sut-Khol'skiy rayon

Pfafstetter: 32267652

Sub-basin area

741,3km²

Upstream area

741,3km²

Discharge

1,8m³/s

Mean elev.

1 349m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Хемчик18 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • SHeminskij

    IUCN IV

    State Natural Zakaznik

    87.81 km² overlap

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

Species present

369 distinct species · 558 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

558 obs · 18 cellules
Obs. / cellule
≥ 209
129–208
18–128
13–17
< 13

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

Ecological tissue

Sample of 25 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 Чадан : 21 espèces reliées par 30 interactions GloBI sur 2 types (connectance 9.2%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
30
Connectance
0.092
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°

-3,9°C

Annual rain

321mm

Moisture idx (CMI)

-0,50

Runoff

87mm/an

PET

647mm

AET

290mm

Mean slope

7,5°

Water table

193cm

Forest

52%

Crops

17%

Urban

0%

Protected

34%

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