Ontologia

Bassin versant HydroBASINS lev08 · #2080284370

Bassin de Daugava

Un bassin versant n’est pas un volume d’eau mais un territoire de drainage : toute la surface terrestre dont les eaux de pluie convergent vers un même cours d’eau qui rejoint la mer (ou un bassin endoréique). Les limites suivent les lignes de crête.

Traverse 4 entités administratives : Aizkraukle, Jekabpils, Madona, Preili

6% lacPfafstetter: 24280310

Surface sous-bassin

1 564,7km²

Surface amont

70 922,8km²

Débit

517,57m³/s

Altitude moy.

100m

Découpage administratif

Chaîne hydrographique

▼ Se déverse dans

Bassin de Daugava263 km²

▲ Reçoit 2 bassins amont

4 entités administratives (GADM L2)

30 aires protégées intersectantes

  • Teici and Pelecare bogs

    IUCN Ia

    Wetland of International Importance (Ramsar Site)

    72.54 km² overlap

  • Teiču dabas rezervāts

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    71.46 km² overlap

  • Teiču dabas rezervāts

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    71.46 km² overlap

  • Teiču dabas rezervāts

    IUCN Ib

    Strict Nature Reserve

    71.46 km² overlap

  • Ābeļi

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    32.32 km² overlap

  • Ābeļi

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    32.32 km² overlap

  • Ābeļi

    IUCN IV

    Nature Reserve

    32.32 km² overlap

  • Gaiņu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    11.13 km² overlap

  • Gaiņu purvs

    IUCN IV

    Nature Reserve

    11.11 km² overlap

21 aires protégées de plus

  • Rožu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    10.12 km² overlap

  • Rožu purvs

    IUCN IV

    Nature Reserve

    10.12 km² overlap

  • Rožu purvs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    10.12 km² overlap

  • Eiduku purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    8.84 km² overlap

  • Eiduku purvs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.84 km² overlap

  • Eiduku purvs

    IUCN IV

    Nature Reserve

    8.83 km² overlap

  • Nomavas purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.89 km² overlap

  • Nomavas purvs

    IUCN IV

    Nature Reserve

    7.89 km² overlap

  • Gargrodes purvs

    IUCN IV

    Nature Reserve

    6.50 km² overlap

  • Gargrodes purvs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    6.50 km² overlap

  • Gargrodes purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.50 km² overlap

  • Švēriņu purvs

    IUCN IV

    Nature Reserve

    6.35 km² overlap

  • Švēriņu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.34 km² overlap

  • Tīreļu purvs

    IUCN IV

    Nature Reserve

    4.06 km² overlap

  • Tīreļu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    4.06 km² overlap

  • Slapjo salu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    4.04 km² overlap

  • Slapjo salu purvs

    IUCN IV

    Nature Reserve

    4.04 km² overlap

  • Laukezers

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    3.26 km² overlap

  • Laukezers

    IUCN II

    Nature Park

    3.25 km² overlap

  • Spuļģu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    3.07 km² overlap

  • Spuļģu purvs

    IUCN IV

    Nature Reserve

    3.07 km² overlap

Calculé en direct · GADM 4.1 × HydroBASINS lev08 × WDPA · caché après le premier hit.

Espèces présentes

1 063 espèces distinctes · 3 635 observations

Source : GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 635 obs · 50 cellules
Obs. / cellule
≥ 502
182–501
83–181
46–82
< 46

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Tissu écologique

Graphe en cours d’indexation

Calcul du tissu écologique de cette entité.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).

Hydroclimat (BasinATLAS lev08)

T° moyenne

5,5°C

Précip. annuelles

663mm

Indice humidité

0,06

Ruissellement

269mm/an

ETP

625mm

ET réelle

481mm

Pente moy.

1,0°

Nappe phréatique

55cm

Forêt

38%

Cultures

23%

Urbain

2%

Aires protégées

11%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)