HydroBASINS lev08 watershed · #2080417030
Bassin de Mierzawa
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 5 administrative regions : Jędrzejów, Miechów, Pińczów, Włoszczowa, Zawiercie
Sub-basin area
557,6km²
Upstream area
557,6km²
Discharge
3,06m³/s
Mean elev.
268m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Jędrzejów410.7 km²73.4% of basin
- Miechów75.1 km²13.4% of basin
- Pińczów63.3 km²11.3% of basin
- 10.5 km²1.9% of basin
- Włoszczowa0.1 km²0.0% of basin
20 intersecting protected areas
Miechowsko-Działoszycki
IUCN Not AssignedProtected Landscape Area
230.86 km² overlap
Obszar Chronionego Krajobrazu Wyżyny Miechowskiej
IUCN Not AssignedProtected Landscape Area
75.08 km² overlap
Dolina Mierzawy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.22 km² overlap
Nadnidziański
IUCN Not AssignedProtected Landscape Area
10.73 km² overlap
Kozubowski
IUCN Not AssignedProtected Landscape Area
10.27 km² overlap
Dolina Górnej Mierzawy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.14 km² overlap
Ostoja Nidziańska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.62 km² overlap
Ostoja Gaj
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.60 km² overlap
Dolina Nidy
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.31 km² overlap
11 more protected areassorted by overlap area
Landscape Park
1.18 km² overlap
Włoszczowsko-Jędrzejowski
IUCN Not AssignedProtected Landscape Area
0.93 km² overlap
Landscape Park
0.68 km² overlap
Kwiatówka
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.47 km² overlap
Nature Reserve
0.21 km² overlap
Ostoja Kozubowska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.13 km² overlap
Kwiatówka
IUCN IVNature Reserve
0.11 km² overlap
Kępie na Wyżynie Miechowskiej
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.08 km² overlap
Lubcza
IUCN IVNature Reserve
0.07 km² overlap
Nature Reserve
0.07 km² overlap
Polana Polichno
IUCN IVNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
866 distinct species · 9 748 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Mierzawa : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 107 interactions GloBI sur 3 types (connectance 21.6%, 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°
7,6°C
Annual rain
661mm
Moisture idx (CMI)
-0,11
Runoff
173mm/an
PET
746mm
AET
558mm
Mean slope
1,6°
Water table
153cm
Forest
4%
Crops
77%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)