HydroBASINS lev08 watershed · #2080000540
Bassin de נחל חילזון
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 2 administrative regions : Bint Jbayl, Sour
Sub-basin area
1 371,8km²
Upstream area
1 371,8km²
Discharge
0,2m³/s
Mean elev.
326m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 355.1 km²25.9% of basin
- Bint JbaylNabatiyeh · Lebanon180.9 km²13.2% of basin
30 intersecting protected areas
Har Meron
IUCN Not AssignedNature Reserve
48.96 km² overlap
Har Sasa
IUCN Not AssignedNature Reserve
8.26 km² overlap
Nahal Bezet
IUCN Not AssignedNature Reserve
7.46 km² overlap
Nahal Keziv
IUCN Not AssignedNature Reserve
5.25 km² overlap
Mezad Abbirim
IUCN Not AssignedNature Reserve
3.41 km² overlap
Har Shekhanya
IUCN Not AssignedNature Reserve
3.13 km² overlap
Nahal Bet Ha-Emeq
IUCN Not AssignedNature Reserve
2.21 km² overlap
Har Meron (harhava – Nahal Khziv Elyon)
IUCN Not AssignedNature Reserve
1.81 km² overlap
Tyre Coast Nature Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.78 km² overlap
21 more protected areassorted by overlap area
Nahal Keziv
IUCN Not AssignedNature Reserve
1.67 km² overlap
Yam Rosh Haniqra – Akhziv
IUCN Not AssignedNature Reserve
1.65 km² overlap
Nahal Sha'al
IUCN Not AssignedNature Reserve
1.29 km² overlap
Nahal Bezet (harhava)
IUCN Not AssignedNature Reserve
1.23 km² overlap
Nahal Ukkam
IUCN Not AssignedNature Reserve
1.22 km² overlap
Nahal Yehi'am
IUCN Not AssignedNature Reserve
1.21 km² overlap
Hanita
IUCN Not AssignedNature Reserve
1.15 km² overlap
Montfort
IUCN Not AssignedNational Park
1.07 km² overlap
Tel Marwa
IUCN Not AssignedNature Reserve
1.05 km² overlap
Har Sene
IUCN Not AssignedNature Reserve
0.95 km² overlap
Rosh Ha-Niqra
IUCN Not AssignedNature Reserve
0.93 km² overlap
Nahal Keziv
IUCN Not AssignedNature Reserve
0.91 km² overlap
Har Dovev
IUCN Not AssignedNature Reserve
0.75 km² overlap
En Afeq Nature Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.66 km² overlap
Abbassieh Nature Reserve
IUCN IbNature Reserve
0.62 km² overlap
Reches Rosh Ha-Niqra (hashlama)
IUCN Not AssignedNature Reserve
0.48 km² overlap
Akhziv
IUCN Not AssignedNational Park
0.45 km² overlap
Har Goderim
IUCN Not AssignedNature Reserve
0.45 km² overlap
Horbat Kukhim
IUCN Not AssignedNature Reserve
0.37 km² overlap
En Afeq
IUCN Not AssignedNature Reserve
0.37 km² overlap
Har Gamal
IUCN Not AssignedNature Reserve
0.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 522 distinct species · 344 743 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 נחל חילזון : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 5 types (connectance 9.6%, filtre Serrano α=0.2). 10 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°
19,3°C
Annual rain
699mm
Moisture idx (CMI)
-0,43
Runoff
250mm/an
PET
1 238mm
AET
531mm
Mean slope
7,0°
Water table
366cm
Forest
37%
Crops
28%
Urban
37%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)