HydroBASINS lev08 watershed · #2080425160
Bassin de Jizera
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 11 administrative regions across 2 countries : Jablonec nad Nisou, Jelenia Góra, Jičín, Liberec, Lwówek Śląski +6
Sub-basin area
2 164,3km²
Upstream area
2 164,4km²
Discharge
23,07m³/s
Mean elev.
441m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
11 dept-equivalent regions (GADM L2)
- 716.7 km²33.0% of basin
- 583.3 km²26.9% of basin
- 353.2 km²16.3% of basin
- 220.9 km²10.2% of basin
- 119.2 km²5.5% of basin
- 94.7 km²4.4% of basin
- 37.2 km²1.7% of basin
- Lwówek Śląski21.7 km²1.0% of basin
3 moreFull L2 list
- Jelenia Góra20.8 km² · 1.0%
- Mělník3.9 km² · 0.2%
- Nymburk0.4 km² · 0.0%
30 intersecting protected areas
Krkonoše
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
190.23 km² overlap
Krkonoše
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
187.87 km² overlap
Český ráj
IUCN VProtected Landscape Area
175.34 km² overlap
Jizerské hory
IUCN VProtected Landscape Area
168.95 km² overlap
Krkonoše
IUCN Not ReportedSpecial Protection Area (Birds Directive)
133.07 km² overlap
Krkonošský národní park
IUCN VNational Park
114.77 km² overlap
Jizerské hory
IUCN Not ReportedSpecial Protection Area (Birds Directive)
65.98 km² overlap
Góry Izerskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
45.12 km² overlap
Torfowiska Gór Izerskich
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.01 km² overlap
21 more protected areassorted by overlap area
Kokořínsko - Máchův kraj
IUCN VProtected Landscape Area
19.96 km² overlap
Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
18.39 km² overlap
Jizera Headwaters
IUCN Not ReportedWetland of International Importance (Ramsar Site)
18.39 km² overlap
Českolipsko - Dokeské pískovce a mokřady
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.78 km² overlap
Průlom Jizery u Rakous
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.62 km² overlap
Izera/Jizera River Valley
IUCN IbWetland of International Importance (Ramsar Site)
5.34 km² overlap
Torfowiska Doliny Izery
IUCN IVNature Reserve
5.34 km² overlap
Příhrazské skály
IUCN IIINature Reserve
5.20 km² overlap
Příhrazské skály
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.19 km² overlap
Podtrosecká údolí
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.19 km² overlap
Milovice - Mladá
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.35 km² overlap
Údolí Jizery a Kamenice
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.31 km² overlap
Mladá
IUCN IVNational Nature Monument
4.19 km² overlap
Rašeliniště Jizery
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.97 km² overlap
Kokořínsko
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.28 km² overlap
Rašeliniště Jizerky
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.62 km² overlap
Vrch Baba u Kosmonos
IUCN IVNature Reserve
2.50 km² overlap
Klokočské skály
IUCN IIINature Reserve
2.36 km² overlap
Hruboskalsko
IUCN IVNature Reserve
2.20 km² overlap
Černý Orel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.13 km² overlap
Černý Orel
IUCN IVNature Monument
2.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 239 distinct species · 236 981 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 Jizera : 18 espèces reliées par 91 interactions GloBI sur 5 types (connectance 28.0%, 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°
7,0°C
Annual rain
615mm
Moisture idx (CMI)
-0,12
Runoff
262mm/an
PET
699mm
AET
500mm
Mean slope
5,4°
Water table
364cm
Forest
56%
Crops
26%
Urban
5%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)