HydroBASINS lev08 watershed · #2080298200
Bassin de Межа
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 4 administrative regions : Dukhovshchinskiy rayon, Nelidovskiy rayon, Zapadnodvinskiy rayon, Zharkovskiy rayon
Sub-basin area
1 456,3km²
Upstream area
7 631,9km²
Discharge
58,95m³/s
Mean elev.
185m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Аржать856 km²
- Bassin de Межа64 km²
4 dept-equivalent regions (GADM L2)
- Zharkovskiy rayonTver' · Russia667.8 km²45.6% of basin
- Zapadnodvinskiy rayonTver' · Russia663.4 km²45.3% of basin
- Nelidovskiy rayonTver' · Russia87.8 km²6.0% of basin
- Dukhovshchinskiy rayonSmolensk · Russia44.2 km²3.0% of basin
18 intersecting protected areas
State Natural Zakaznik
328.98 km² overlap
ZHarkovskij
IUCN IVState Natural Zakaznik
207.24 km² overlap
Boloto Temnyj Moh
IUCN IVState Natural Zakaznik
30.69 km² overlap
Boloto Osinovyj ostrov
IUCN IVState Natural Zakaznik
22.17 km² overlap
Boloto Moh Pushnyak
IUCN IVState Natural Zakaznik
12.62 km² overlap
Torfyanik Trunaevo-Koneda
IUCN IIINatural Monument
11.65 km² overlap
State Natural Zakaznik
9.58 km² overlap
Boloto Budnickij Moh
IUCN IVState Natural Zakaznik
7.55 km² overlap
Boloto Ovincy
IUCN IVState Natural Zakaznik
3.42 km² overlap
9 more protected areassorted by overlap area
Boloto Krasnyj Moh
IUCN IVState Natural Zakaznik
3.12 km² overlap
Ozero Vysochert
IUCN IVState Natural Zakaznik
2.32 km² overlap
Boloto Drogachevskoe
IUCN IVState Natural Zakaznik
1.59 km² overlap
Natural Monument
0.84 km² overlap
Torfyanik Grublevatskoe
IUCN IIINatural Monument
0.63 km² overlap
Ozero Pesotno
IUCN IIINatural Monument
0.44 km² overlap
Ozero Amlyshevo
IUCN IIINatural Monument
0.36 km² overlap
Ozero CHistik
IUCN IIINatural Monument
0.17 km² overlap
Boloto Lavrenevskoe
IUCN IVState Natural Zakaznik
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
323 distinct species · 821 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 Межа : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 7 types (connectance 11.7%, filtre Serrano α=0.2). 9 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°
4,5°C
Annual rain
638mm
Moisture idx (CMI)
-0,01
Runoff
262mm/an
PET
642mm
AET
490mm
Mean slope
0,7°
Water table
48cm
Forest
90%
Crops
3%
Urban
0%
Protected
25%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)