Ontologia

HydroBASINS lev08 watershed · #2080595920

Bassin de Струма

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 14 administrative regions across 2 countries : Bobovdol, Breznik, Dupnitsa, Kovachevtsi, Kyustendil +9

4% lakePfafstetter: 21304090

Sub-basin area

2 192,6km²

Upstream area

2 192,6km²

Discharge

16,44m³/s

Mean elev.

889m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Бистрица762 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

14 dept-equivalent regions (GADM L2)

6 more

29 intersecting protected areas

  • Zemen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    173.35 km² overlap

  • Karvav kamak

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    137.51 km² overlap

  • Vitoshko-Studena

    IUCN Not Assigned

    State Game Husbandries

    118.58 km² overlap

  • Vitosha

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    113.64 km² overlap

  • Vitosha

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    113.64 km² overlap

  • Vitosha

    IUCN V

    Nature Park

    113.47 km² overlap

  • Noevtsi

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    81.91 km² overlap

  • Ostritsa

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    44.22 km² overlap

  • Konyavska planina

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    41.67 km² overlap

20 more protected areas

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

Species present

2 119 distinct species · 30 116 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 116 obs · 57 cellules
Obs. / cellule
≥ 5 979
1 037–5 978
353–1 036
157–352
< 157

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

Ecological tissue

Sample of 31 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 Струма : 22 espèces reliées par 75 interactions GloBI sur 4 types (connectance 16.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
75
Connectance
0.161
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°

8,5°C

Annual rain

574mm

Moisture idx (CMI)

-0,35

Runoff

223mm/an

PET

889mm

AET

489mm

Mean slope

8,9°

Water table

445cm

Forest

38%

Crops

13%

Urban

3%

Protected

9%

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