HydroBASINS lev08 watershed · #2080268180
Bassin de Пахма
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 : Bol'shesel'skiy rayon, Borisoglebskiy rayon, Gavrilov-Yamskiy rayon, Tutaevskiy rayon, Yaroslavl' +1
Sub-basin area
630,7km²
Upstream area
631km²
Discharge
3,3m³/s
Mean elev.
135m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Yaroslavskiy rayonYaroslavl' · Russia431.9 km²68.1% of basin
- Bol'shesel'skiy rayonYaroslavl' · Russia83.9 km²13.2% of basin
- Tutaevskiy rayonYaroslavl' · Russia54.5 km²8.6% of basin
- Borisoglebskiy rayonYaroslavl' · Russia33.4 km²5.3% of basin
- Gavrilov-Yamskiy rayonYaroslavl' · Russia29.8 km²4.7% of basin
- Yaroslavl'Yaroslavl' · Russia0.4 km²0.1% of basin
2 intersecting protected areas
Koz`modem`yanskij
IUCN IVState Natural Zakaznik
47.71 km² overlap
Karachunovo boloto
IUCN IVState Natural Zakaznik
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
725 distinct species · 2 300 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Пахма : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 6 types (connectance 15.8%, filtre Serrano α=0.2). 13 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°
3,8°C
Annual rain
600mm
Moisture idx (CMI)
-0,03
Runoff
165mm/an
PET
620mm
AET
464mm
Mean slope
1,1°
Water table
78cm
Forest
49%
Crops
38%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)