HydroBASINS lev08 watershed · #2080495630

Bassin de Tarna

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 13 administrative regions across 2 countries : Bátonyterenye, Bélapátfalva, Eger, Füzesabony, Gyöngyös +8

2% lakePfafstetter: 22765044

Sub-basin area

2 044,3km²

Upstream area

2 044,5km²

Discharge

6,57m³/s

Mean elev.

214m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Zagyva266 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

13 dept-equivalent regions (GADM L2)

Gyöngyös
Heves · Hungary
709.9 km²
34.6% of basin
Pétervására
Heves · Hungary
429.4 km²
20.9% of basin
Jászberény
Jász-Nagykun-Szolnok · Hungary
246.2 km²
12.0% of basin
Heves
Heves · Hungary
205.7 km²
10.0% of basin
Füzesabony
Heves · Hungary
177.6 km²
8.7% of basin
Hatvani
Heves · Hungary
151.0 km²
7.4% of basin
Salgótarján
Nógrád · Hungary
70.9 km²
3.5% of basin
Bátonyterenye
Nógrád · Hungary
17.1 km²
0.8% of basin

5 moreFull L2 list

Bélapátfalva13.8 km² · 0.7%
Ózdi10.8 km² · 0.5%
Eger10.2 km² · 0.5%
Pásztó6.1 km² · 0.3%
Rimavská Sobota1.7 km² · 0.1%

30 intersecting protected areas

Mátra
IUCN Not Reported
Special Protection Area (Birds Directive)
286.88 km² overlap
Hevesi-sík
IUCN Not Reported
Special Protection Area (Birds Directive)
218.99 km² overlap
Mátrai Tájvédelmi Körzet
IUCN V
Landscape Protection Area
106.50 km² overlap
Jászság
IUCN Not Reported
Special Protection Area (Birds Directive)
81.69 km² overlap
Tarnavidéki Tájvédelmi Körzet
IUCN V
Landscape Protection Area
67.06 km² overlap
Hevesi Füves Puszták Tájvédelmi Körzet
IUCN V
Landscape Protection Area
23.39 km² overlap
Borsóhalmi-legelő
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
15.56 km² overlap
Gyepes-völgy
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
7.84 km² overlap
Mátra északi letörése
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
7.80 km² overlap

21 more protected areassorted by overlap area

Hevesaranyosi-fedémesi dombvidék
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
7.44 km² overlap
Gyöngyösi Sár-hegy természetvédelmi terület
IUCN IV
Nature Conservation Area
4.02 km² overlap
Gyöngyösi Sár-hegy
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.53 km² overlap
Nyugat-Mátra
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.26 km² overlap
Gyöngyöspatai Havas
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.25 km² overlap
Gyöngyöstarjáni Világos-hegy és Rossz-rétek
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.22 km² overlap
Pusztafogacs
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.20 km² overlap
Jászárokszállási szikesek
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.90 km² overlap
Recski Hegyes-hegy
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.61 km² overlap
Cerová vrchovina- Porimavie
IUCN Not Reported
Special Protection Area (Birds Directive)
1.51 km² overlap
Jászdózsai Pap-erdő
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.62 km² overlap
Egerbakta - Bátor környéki erdők
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.50 km² overlap
Siroki Nyírjes-tó természetvédelmi terület
IUCN IV
Nature Conservation Area
0.21 km² overlap
Cerová vrchovina
IUCN V
Protected Landscape Area; second level of protection
0.16 km² overlap
Verpeléti Vár-hegy
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.08 km² overlap
Domaházai Hangony-patak völgye
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.03 km² overlap
Siroki Várhegy kaptárkövei természeti emlék
IUCN III
Natural Monument
0.03 km² overlap
Beležír
IUCN IV
Protected Site / Private Protected Site
0.03 km² overlap
Beležír
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.03 km² overlap
Siroki Rozsnak-völgy kaptárkövei természeti emlék
IUCN III
Natural Monument
0.03 km² overlap
Siroki Törökasztal és Bálványkövek kaptárkövei természeti emlék
IUCN III
Natural Monument
0.02 km² overlap

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

Species present

4 538 distinct species · 23 923 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 Tarna : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 5 types (connectance 12.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.121

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°

9,8°C

Annual rain

552mm

Moisture idx (CMI)

-0,38

Runoff

102mm/an

PET

896mm

AET

472mm

Mean slope

4,0°

Water table

207cm

Forest

31%

Crops

45%

Urban

Protected

10%

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