Ontologia

HydroBASINS lev08 watershed · #2080609960

Bassin de Арда

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 6 administrative regions : Chernoochene, Haskovo, Kardzhali, Krumovgrad, Momchilgrad +1

33% lakePfafstetter: 21302603

Sub-basin area

521,2km²

Upstream area

3 759,4km²

Discharge

24,41m³/s

Mean elev.

414m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Арда1185 km²

▲ Receives from 2 basins

6 dept-equivalent regions (GADM L2)

14 intersecting protected areas

  • Zhenda

    IUCN Not Assigned

    State Game Husbandries

    324.70 km² overlap

  • Rodopi - Iztochni

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    209.47 km² overlap

  • Studen kladenets

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    129.91 km² overlap

  • Most Arda

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.22 km² overlap

  • Rodopi - Sredni

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.89 km² overlap

  • Valchi dol

    IUCN Ia

    Strict Nature Reserve

    7.69 km² overlap

  • Golemiyat sipey

    IUCN VI

    Protected Site

    6.46 km² overlap

  • Sredna Arda

    IUCN VI

    Protected Site

    4.13 km² overlap

  • Yumruk skala

    IUCN VI

    Protected Site

    3.48 km² overlap

5 more protected areas

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

Species present

733 distinct species · 31 529 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 529 obs · 11 cellules
Obs. / cellule
≥ 9 391
8 377–9 390
2 160–8 376
1 291–2 159
< 1 291

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 Арда : 14 espèces reliées par 58 interactions GloBI sur 3 types (connectance 19.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
58
Connectance
0.193
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°

11,5°C

Annual rain

604mm

Moisture idx (CMI)

-0,39

Runoff

214mm/an

PET

995mm

AET

513mm

Mean slope

9,2°

Water table

482cm

Forest

10%

Crops

16%

Urban

0%

Protected

3%

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