Ontologia

HydroBASINS lev08 watershed · #2080600220

Bassin de Тунджа

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 5 administrative regions : Bolyarovo, Elhovo, Straldzha, Tundzha, Yambol

3% lakePfafstetter: 21302405

Sub-basin area

805,5km²

Upstream area

5 632,1km²

Discharge

27,83m³/s

Mean elev.

171m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Тунджа357 km²

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

19 intersecting protected areas

  • Tundzha

    IUCN Not Assigned

    State Game Husbandries

    621.32 km² overlap

  • Reka Tundzha 2

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    53.97 km² overlap

  • Bakadzhitsite

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    21.91 km² overlap

  • Reka Tundzha 1

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.96 km² overlap

  • Dolna Topchia

    IUCN IV

    Managed Reserve

    4.67 km² overlap

  • Topchiya

    IUCN VI

    Protected Site

    3.43 km² overlap

  • Longozite

    IUCN VI

    Protected Site

    1.77 km² overlap

  • Gorna Topchia

    IUCN Ia

    Strict Nature Reserve

    1.64 km² overlap

  • Reka Mochuritsa

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.94 km² overlap

10 more protected areas

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

Species present

564 distinct species · 5 004 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 004 obs · 21 cellules
Obs. / cellule
≥ 1 355
474–1 354
208–473
156–207
< 156

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

Ecological tissue

Sample of 32 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 Тунджа : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 4 types (connectance 13.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
67
Connectance
0.135
Patrimoniales
1
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°

12,2°C

Annual rain

611mm

Moisture idx (CMI)

-0,40

Runoff

111mm/an

PET

1 019mm

AET

518mm

Mean slope

1,7°

Water table

196cm

Forest

2%

Crops

49%

Urban

5%

Protected

1%

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