HydroBASINS lev08 watershed · #2080796310
Bassin de נחל תרצה
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 6 administrative regions across 2 countries : Dair Alla, Jenin, Jericho, Nablus, Shooneh Janoobiyyeh +1
Sub-basin area
339km²
Upstream area
339km²
Discharge
1,83m³/s
Mean elev.
218m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 194.0 km²57.3% of basin
- 109.0 km²32.2% of basin
- 29.2 km²8.6% of basin
- 6.5 km²1.9% of basin
- 0.0 km²0.0% of basin
- 0.0 km²0.0% of basin
11 intersecting protected areas
Har Kabbir
IUCN Not AssignedNature Reserve
24.48 km² overlap
Har Tamun
IUCN Not AssignedNature Reserve
13.75 km² overlap
Qarn Sartaba
IUCN IVNature Reserve
10.91 km² overlap
Central Ghor
IUCN IINature Reserve
9.47 km² overlap
Sartaba
IUCN Not AssignedNature Reserve
9.14 km² overlap
Haruva
IUCN Not AssignedNature Reserve
6.14 km² overlap
Bitronot Nahal Tirza
IUCN Not AssignedNature Reserve
3.82 km² overlap
Har Gadir
IUCN Not AssignedNature Reserve
0.85 km² overlap
El Miksar
IUCN IVNature Reserve
0.52 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 280 distinct species · 30 877 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 תרצה : 19 espèces reliées par 53 interactions GloBI sur 3 types (connectance 13.1%, 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°
20,4°C
Annual rain
366mm
Moisture idx (CMI)
-0,74
Runoff
170mm/an
PET
1 462mm
AET
309mm
Mean slope
9,1°
Water table
481cm
Forest
0%
Crops
71%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)