HydroBASINS lev08 watershed · #2080008990
Bassin de Средецка
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 10 administrative regions across 2 countries : Bolyarovo, Burgas, Kameno, Karnobat, Kofçaz +5
Sub-basin area
2 431,3km²
Upstream area
2 431,4km²
Discharge
8,11m³/s
Mean elev.
182m
Administrative coverage
10 dept-equivalent regions (GADM L2)
- 1165.0 km²47.8% of basin
- 343.4 km²14.1% of basin
- 289.2 km²11.9% of basin
- 251.3 km²10.3% of basin
- 180.1 km²7.4% of basin
- 99.7 km²4.1% of basin
- 84.9 km²3.5% of basin
- 11.5 km²0.5% of basin
2 moreFull L2 list
- Tundzha5.8 km² · 0.2%
- Malko Tarnovo4.2 km² · 0.2%
30 intersecting protected areas
Derventski vazvishenia 2
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
364.43 km² overlap
Zapadna Strandzha
IUCN Not ReportedSpecial Protection Area (Birds Directive)
346.47 km² overlap
Tundzha
IUCN Not AssignedState Game Husbandries
271.14 km² overlap
Mandra - Poda
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
57.61 km² overlap
Mandra - Poda
IUCN Not ReportedSpecial Protection Area (Birds Directive)
57.61 km² overlap
Fakiyska reka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
41.04 km² overlap
Ropotamo
IUCN Not AssignedState Game Husbandries
30.72 km² overlap
Bakadzhitsite
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.05 km² overlap
Voynishki Bakadzhik
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.40 km² overlap
21 more protected areassorted by overlap area
Sredetska reka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.08 km² overlap
Reka Mochuritsa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.39 km² overlap
Belia kamak
IUCN VIProtected Site
4.45 km² overlap
Strandzha
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.66 km² overlap
Strandzha
IUCN VNature Park
3.66 km² overlap
Strandzha
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.58 km² overlap
Stariat sovat
IUCN VIProtected Site
3.11 km² overlap
Uzungeren
IUCN VIProtected Site
2.04 km² overlap
Ustieto na reka Izvorska
IUCN VIProtected Site
1.99 km² overlap
Rakov dol
IUCN VIProtected Site
1.32 km² overlap
Tiasnata reka
IUCN VIProtected Site
1.30 km² overlap
Nahodishte na Div bozhur
IUCN VIProtected Site
0.84 km² overlap
Vodenitzite
IUCN IIINatural Monument
0.73 km² overlap
Pladnishteto
IUCN VIProtected Site
0.69 km² overlap
Nevestin grad
IUCN VIProtected Site
0.61 km² overlap
Poda
IUCN IVWetland of International Importance (Ramsar Site)
0.28 km² overlap
Poda
IUCN VIProtected Site
0.25 km² overlap
Golemiya kamak
IUCN IIINatural Monument
0.03 km² overlap
Dolmenite -Vlahov dol
IUCN IIINatural Monument
0.02 km² overlap
Dolmen lozenski dol
IUCN IIINatural Monument
0.01 km² overlap
Dolmen pasha dere
IUCN IIINatural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 476 distinct species · 44 271 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Средецка : 19 espèces reliées par 55 interactions GloBI sur 3 types (connectance 15.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
12,3°C
Annual rain
612mm
Moisture idx (CMI)
-0,38
Runoff
139mm/an
PET
980mm
AET
519mm
Mean slope
3,7°
Water table
324cm
Forest
28%
Crops
35%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)