HydroBASINS lev08 watershed · #2080259230

Bassin de Õhne jõgi

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 8 administrative regions across 2 countries : Helme, Hummuli, Karksi, Põdrala, Tarvastu +3

58% lakePfafstetter: 24296496

Sub-basin area

661,6km²

Upstream area

661,6km²

Discharge

5,93m³/s

Mean elev.

80m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #20802591901 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

8 dept-equivalent regions (GADM L2)

Helme
Valga · Estonia
271.6 km²
40.8% of basin
Tarvastu
Viljandi · Estonia
124.1 km²
18.7% of basin
Põdrala
Valga · Estonia
101.9 km²
15.3% of basin
Hummuli
Valga · Estonia
69.4 km²
10.4% of basin
Karksi
Viljandi · Estonia
40.4 km²
6.1% of basin
Võrtsjärve
Tartu · Estonia
34.7 km²
5.2% of basin
Valka
Vidzeme · Latvia
18.3 km²
2.7% of basin
Tõrva
Valga · Estonia
4.8 km²
0.7% of basin

30 intersecting protected areas

Võrtsjärve
IUCN Not Reported
Special Protection Area (Birds Directive)
40.18 km² overlap
Võrtsjärve
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
40.18 km² overlap
Võrtsjärve hoiuala (Viljandi)
IUCN VI
Limited-conservation area
34.33 km² overlap
Rubina
IUCN Not Reported
Special Protection Area (Birds Directive)
21.22 km² overlap
Rubina
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
21.08 km² overlap
Rubina looduskaitseala
IUCN Not Assigned
Nature reserve
21.06 km² overlap
Ziemeļvidzemes biosfēras rezervāts
IUCN V
Biosphere Reserve
17.27 km² overlap
Rubina LKA, Rubina skv.
IUCN Ib
Wilderness conservation zone of nature reserve
11.89 km² overlap
Järveküla looduskaitseala
IUCN Not Assigned
Nature reserve
4.89 km² overlap

21 more protected areassorted by overlap area

Rubina LKA, Veisjärve pv.
IUCN VI
Limited management zone of nature reserve
4.81 km² overlap
Lasa
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.74 km² overlap
Viira looduskaitseala
IUCN Not Assigned
Nature reserve
3.94 km² overlap
Viira LKA, Viira skv.
IUCN V
Managed conservation zone of nature reserve
3.94 km² overlap
Järveküla LKA, Arumetsa soo skv.
IUCN V
Managed conservation zone of nature reserve
3.28 km² overlap
Tündre
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.03 km² overlap
Tündre LKA, Paluora skv.
IUCN V
Managed conservation zone of nature reserve
3.03 km² overlap
Tündre looduskaitseala
IUCN Not Assigned
Nature reserve
3.03 km² overlap
Koorküla looduskaitseala
IUCN Not Assigned
Nature reserve
2.89 km² overlap
Koorküla
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.89 km² overlap
Rutu
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.79 km² overlap
Rutu MKA, Rutu skv.
IUCN V
Managed conservation zone of protected landscape
2.78 km² overlap
Rutu maastikukaitseala
IUCN Not Assigned
Protected landscape (nature park)
2.78 km² overlap
Rubina LKA, Õhne skv.
IUCN IV
Managed conservation zone of nature reserve
2.38 km² overlap
Rubina LKA, Õhne pv.
IUCN VI
Limited management zone of nature reserve
1.99 km² overlap
Koorküla LKA, Kadastiku skv.
IUCN IV
Managed conservation zone of nature reserve
1.45 km² overlap
Palakmäe
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.38 km² overlap
Järveküla LKA, Järveküla pv.
IUCN VI
Limited management zone of nature reserve
1.37 km² overlap
Pilpa looduskaitseala
IUCN Not Assigned
Nature reserve
1.36 km² overlap
Pilpa LKA, Pilpa skv.
IUCN V
Managed conservation zone of nature reserve
1.36 km² overlap
Koorküla LKA, Valgjärve pv.
IUCN VI
Limited management zone of nature reserve
1.03 km² overlap

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

Species present

5 214 distinct species · 44 898 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Õhne jõgi : 24 espèces reliées par 74 interactions GloBI sur 6 types (connectance 13.2%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.132

Patrimoniales

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°

5,1°C

Annual rain

631mm

Moisture idx (CMI)

0,10

Runoff

300mm/an

PET

567mm

AET

433mm

Mean slope

1,0°

Water table

69cm

Forest

36%

Crops

23%

Urban

Protected

14%

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