HydroBASINS lev08 watershed · #2080611810
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 4 administrative regions across 2 countries : East Macedonia and Thrace, Madan, Rudozem, Smolyan
Sub-basin area
445,3km²
Upstream area
445,3km²
Discharge
2,56m³/s
Mean elev.
1 113m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 289.3 km²64.9% of basin
- 146.0 km²32.8% of basin
- 7.0 km²1.6% of basin
- 3.5 km²0.8% of basin
18 intersecting protected areas
Rodopi - Zapadni
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
111.58 km² overlap
Tsigansko gradishte
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
52.09 km² overlap
Trigrad - Mursalitsa
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.79 km² overlap
KENTRIKI RODOPI KAI KOILADA NESTOU
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.08 km² overlap
National Park
4.91 km² overlap
Others
4.06 km² overlap
Vrah Srednogorets
IUCN VIProtected Site
1.40 km² overlap
DASOS FRAKTOU
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.84 km² overlap
Wildlife Refugee
0.84 km² overlap
9 more protected areassorted by overlap area
Nature reserve zone in National Park
0.47 km² overlap
Absolute nature reserve zone in National Park
0.38 km² overlap
Padala
IUCN VIProtected Site
0.34 km² overlap
Drymou Dimou Stavroupolis
IUCN IVWildlife Refugee
0.14 km² overlap
OROS CHAINTOU - KOULA KAI GYRO KORYFES
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Kaleto
IUCN VIProtected Site
0.03 km² overlap
Livadite
IUCN VIProtected Site
0.01 km² overlap
Borikovska peshtera
IUCN IIINatural Monument
0.01 km² overlap
Ultzata
IUCN IIINatural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
514 distinct species · 2 195 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Арда : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 5 types (connectance 12.6%, filtre Serrano α=0.2). 12 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°
8,0°C
Annual rain
673mm
Moisture idx (CMI)
-0,20
Runoff
184mm/an
PET
847mm
AET
561mm
Mean slope
15,9°
Water table
676cm
Forest
99%
Crops
3%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)