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8.2.3.1. Kalkarmer, lehmiger Hackfruchtacker

Polygono-Chenopodion

Description

Phyonomy and Ecology (© Delarze & al. 2015)

Die Einheit umfasst wärmeliebende Vegetationstypen aus einjährigen Pflanzen, die bei Sommerbeginn keimen und mit den ersten Frösten absterben. Diese Begleitvegetation etabliert sich in Hackfruchtäckern, in Gemüsegärten und auf Erdhaufen. Es ist ein Lebensraum auf lehmigen, nährstoffreichen und eher kalkarmen Böden mit guter Wasserversorgung. Das Polygono-Chenopodion ist daher besonders häufig in den alluvialen Ebenen des Mittellandes und der grossen Alpentäler, wo die lehmig-tonigen Sedimente durch das aufsteigende Kapillarwasser aus dem Grundwasser gut durchfeuchtet bleiben. In den trockenen, sommerwarmen Regionen mit allgemein höherer Verdunstung gibt es manchmal eine oberflächliche Anreicherung von gelösten Bodensalzen. Hier treten Pflanzen aus dem Verband Chenopodion rubri hinzu (vgl. Abschnitt «Klassifikation»).

Distribution map

  • Calculation method

    Current distribution: Weighted sum (number of characteristic and frequent species) per hectare based on current observations. Reported characteristic species are given a weighting of 10, while others are counted without weighting. The habitat is considered to be present in a grid cell (5 x 5 km) if it contains at least one hectare with a minimum value of 11 points.

    Potential distribution: Weighted sum (number of characteristic and frequent species) per hectare based on species distribution models. The calculation strategy is the same as for current distribution, but maps derived from species distribution models are used instead of current observations.

List of species

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat


Scientific name English name
Character species Chenopodium ficifolium Sm.Feigenblättriger Gänsefuss
Character species Chenopodium glaucum L.Graugrüner Gänsefuss
Character species Chenopodium polyspermum L.Vielsamiger Gänsefuss
Character species Chenopodium rubrum L.Roter Gänsefuss
Character species Glebionis segetum (L.) Fourr.NSaat-Margerite
Character species Erysimum cheiranthoides L.Acker-Schöterich
Character species Galeopsis speciosa Mill.Bunter Hohlzahn
Character species Galinsoga quadriradiata Ruiz & Pav.NBewimpertes Knopfkraut
Character species Oxalis dillenii Jacq.NDillenius' Sauerklee
Character species Oxalis stricta L.NAufrechter Sauerklee
Less strictly linked to a specific habitat Anchusa arvensis (L.) M. Bieb.Krummhals
Less strictly linked to a specific habitat Atriplex patula L.Gewöhnliche Melde
Less strictly linked to a specific habitat Atriplex prostrata DC.Spiessblättrige Melde
Less strictly linked to a specific habitat Brassica rapa L.Rüben-Kohl
Less strictly linked to a specific habitat Capsella bursa-pastoris (L.) Medik.Gemeines Hirtentäschel
Less strictly linked to a specific habitat Cardamine hirsuta L.Vielstängeliges Schaumkraut
Less strictly linked to a specific habitat Cerastium glomeratum Thuill.Knäuel-Hornkraut
Less strictly linked to a specific habitat Chenopodium album L.Weisser Gänsefuss
Less strictly linked to a specific habitat Cuscuta scandens Brot.NKnöterich-Seide
Less strictly linked to a specific habitat Cyperus esculentus L.NEssbares Zypergras
Less strictly linked to a specific habitat Echinochloa crus-galli (L.) P. Beauv.Hühnerhirse
Less strictly linked to a specific habitat Lamium purpureum L.Acker-Taubnessel
Less strictly linked to a specific habitat Linaria simplex (Willd.) DC.Einfaches Leinkraut
Less strictly linked to a specific habitat Mentha arvensis L.Acker-Minze
Less strictly linked to a specific habitat Polygonum persicaria L.Pfirsichblättriger Knöterich
Less strictly linked to a specific habitat Ranunculus repens L.Kriechender Hahnenfuss
Less strictly linked to a specific habitat Sedum stoloniferum S. G. Gmel.NAusläuferbildendes Fettkraut
Less strictly linked to a specific habitat Senecio vulgaris L.Gemeines Greiskraut
Less strictly linked to a specific habitat Sonchus asper HillRaue Gänsedistel
Less strictly linked to a specific habitat Sorghum halepense (L.) Pers.NWilde Mohrenhirse
Less strictly linked to a specific habitat Stellaria media (L.) Vill.Gewöhnliche Vogelmiere
Less strictly linked to a specific habitat Veronica persica Poir.NPersischer Ehrenpreis

Status

Status according to the habitat priority list at the national level

National Priority K: no national priority
Need to take action 0: mesures needed
International responsibility 1: weak

Status on national Red List 2016

IUCN status:   Least concern

LC: Non menacé

Additional information

IUCN criteria: --

  • Legend
    COCollapsed
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

Legal protection (NCHO appendix 1)

Natural habitat worthy of protection

Note

Only association Chenopodion rubri

Regeneration status 2016

Regeneration class 1: less than 5 years