Ontologia

HydroBASINS lev08 watershed · #2080256560

Bassin de Emajõgi

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 28 administrative regions : Ahja, Alatskivi, Elva, Haaslava, Jõgeva (commune) +23

12% lakePfafstetter: 24296450

Sub-basin area

2 359,2km²

Upstream area

8 982,1km²

Discharge

73,61m³/s

Mean elev.

70m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Kalli jõgi1087 km²

▲ Receives from 2 basins

28 dept-equivalent regions (GADM L2)

  • Tartu
    Tartu · Estonia
    337.8 km²
    14.2% of basin
  • Vara
    Tartu · Estonia
    235.8 km²
    9.9% of basin
  • Kambja
    Tartu · Estonia
    187.8 km²
    7.9% of basin
  • Nõo
    Tartu · Estonia
    169.2 km²
    7.1% of basin
  • Luunja
    Tartu · Estonia
    131.8 km²
    5.6% of basin
  • Tähtvere
    Tartu · Estonia
    115.0 km²
    4.8% of basin
  • Haaslava
    Tartu · Estonia
    109.6 km²
    4.6% of basin
  • Tabivere
    Jõgeva · Estonia
    101.1 km²
    4.3% of basin
20 more
  • Palupera99.4 km² · 4.2%
  • Mäksa97.0 km² · 4.1%
  • Palamuse96.6 km² · 4.1%
  • Puhja92.3 km² · 3.9%
  • Ülenurme86.3 km² · 3.6%
  • Laeva82.3 km² · 3.5%
  • Konguta73.4 km² · 3.1%
  • Puhajarve68.6 km² · 2.9%
  • Võnnu53.3 km² · 2.2%
  • Valgjärve47.1 km² · 2.0%
  • Kõlleste43.2 km² · 1.8%
  • Rõngu35.2 km² · 1.5%
  • Vastse-Kuuste27.9 km² · 1.2%
  • Alatskivi26.7 km² · 1.1%
  • Jõgeva (commune)18.8 km² · 0.8%
  • Ahja14.2 km² · 0.6%
  • Elva11.0 km² · 0.5%
  • Peipsiääre7.2 km² · 0.3%
  • Puka2.2 km² · 0.1%
  • Pala0.6 km² · 0.0%

30 intersecting protected areas

  • Otepää

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    101.82 km² overlap

  • Otepää

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    101.82 km² overlap

  • Otepää looduspark

    IUCN Not Assigned

    Protected landscape (nature park)

    100.57 km² overlap

  • Vooremaa maastikukaitseala

    IUCN Not Assigned

    Protected landscape (nature park)

    95.69 km² overlap

  • Vooremaa MKA, Vooremaa pv.

    IUCN V

    Limited management zone of protected landscape

    93.35 km² overlap

  • Peipsiveere looduskaitseala

    IUCN Not Assigned

    Nature reserve

    53.29 km² overlap

  • Peipsiveere

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    53.29 km² overlap

  • Peipsiveere

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    53.29 km² overlap

  • Peipsiveere

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    53.29 km² overlap

21 more protected areas

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

Species present

13 577 distinct species · 723 709 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

723 709 obs · 81 cellules
Obs. / cellule
≥ 110 463
17 062–110 462
6 477–17 061
4 110–6 476
< 4 110

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

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 Bassin de Emajõgi : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 6 types (connectance 9.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
57
Connectance
0.096
Patrimoniales
2
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°

5,0°C

Annual rain

608mm

Moisture idx (CMI)

0,05

Runoff

246mm/an

PET

575mm

AET

444mm

Mean slope

1,1°

Water table

89cm

Forest

21%

Crops

38%

Urban

2%

Protected

16%

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