HydroBASINS lev08 watershed · #2080535840
Bassin de Râul Negru
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 42 administrative regions : Azuga, Bodoc, Borosneu Mare, Brates, Bretcu +37
Sub-basin area
2 323,3km²
Upstream area
2 323,3km²
Discharge
19,13m³/s
Mean elev.
788m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
42 dept-equivalent regions (GADM L2)
- 224.0 km²9.6% of basin
- 206.1 km²8.9% of basin
- 146.7 km²6.3% of basin
- 123.6 km²5.3% of basin
- 117.8 km²5.1% of basin
- 113.6 km²4.9% of basin
- 109.8 km²4.7% of basin
- 102.5 km²4.4% of basin
34 moreFull L2 list
- Poian98.0 km² · 4.2%
- Tarlungeni95.9 km² · 4.1%
- Sanzieni87.3 km² · 3.7%
- Moacsa86.7 km² · 3.7%
- Ojdula83.9 km² · 3.6%
- Covasna76.6 km² · 3.3%
- Ozun74.2 km² · 3.2%
- Borosneu Mare64.1 km² · 2.8%
- Budila60.6 km² · 2.6%
- Catalina55.3 km² · 2.4%
- Teliu54.3 km² · 2.3%
- Reci54.3 km² · 2.3%
- Bretcu52.6 km² · 2.3%
- Dobarlau51.3 km² · 2.2%
- Targu Secuiesc48.9 km² · 2.1%
- Brates34.5 km² · 1.5%
- Ghidfalau23.1 km² · 1.0%
- Prejmer19.0 km² · 0.8%
- Chichis16.0 km² · 0.7%
- Valea Mare14.2 km² · 0.6%
- Sanmartin9.8 km² · 0.4%
- Ciucsangeorgiu6.5 km² · 0.3%
- Sfantu Gheorghe6.3 km² · 0.3%
- Micfalau3.0 km² · 0.1%
- Intorsura Buzaului2.4 km² · 0.1%
- Predeal2.1 km² · 0.1%
- Tesila1.6 km² · 0.1%
- Maneciu-ungureni0.8 km² · 0.0%
- Vama Buzaului0.5 km² · 0.0%
- Bodoc0.4 km² · 0.0%
- Azuga0.4 km² · 0.0%
- Ilieni0.1 km² · 0.0%
- Tulnici0.1 km² · 0.0%
- Slanic-moldova0.0 km² · 0.0%
21 intersecting protected areas
Oituz - Ojdula
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
55.14 km² overlap
Ciomad - Balvanyos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
41.66 km² overlap
Ciucaș
IUCN Not ReportedSite of Community Importance (Habitats Directive)
40.77 km² overlap
Munții Bodoc - Baraolt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.62 km² overlap
Tinovul Apa Lină - Honcsok
IUCN Not ReportedSite of Community Importance (Habitats Directive)
29.29 km² overlap
Tinovul Apa Lină - Honcsok
IUCN Not ReportedSpecial Protection Area (Birds Directive)
29.29 km² overlap
Râul Negru
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.15 km² overlap
Valea Râului Negru
IUCN Not ReportedSpecial Protection Area (Birds Directive)
23.15 km² overlap
Nature reserve
21.26 km² overlap
12 more protected areassorted by overlap area
Mestecănișul de la Reci
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.26 km² overlap
Piatra Mare
IUCN Not ReportedSite of Community Importance (Habitats Directive)
10.30 km² overlap
Aninișurile de pe Tărlung
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.63 km² overlap
Putna - Vrancea
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.38 km² overlap
Munții Vrancei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.38 km² overlap
Natural park
0.38 km² overlap
Creasta Nemirei
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.31 km² overlap
Nemira
IUCN IVNature reserve
0.31 km² overlap
Turbăria Ruginosu Zagon
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.04 km² overlap
Turbăria Ruginosu
IUCN IVNature reserve
0.04 km² overlap
Oltul Superior
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Locul fosilifer Purcăreni
IUCN Not AssignedNot Assigned
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 316 distinct species · 9 412 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Râul Negru : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 2 types (connectance 15.5%, filtre Serrano α=0.2). 9 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°
6,5°C
Annual rain
678mm
Moisture idx (CMI)
-0,14
Runoff
257mm/an
PET
792mm
AET
568mm
Mean slope
8,7°
Water table
393cm
Forest
59%
Crops
29%
Urban
2%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)