Organization CEN Occitanie

Mas de la Victoire

Type of ecosystem Arboriculture
Working group WG 2: Scientific
Location Saint-Pons-de-Mauchiens
Site manager  Sébastien Blayac
Purpose of the experimentation The purpose was to test the behavior of several seed mixes in a plain field.

The goals of restauration were to restore a mediterranean grassland of community interest :
  • Increase vegetation cover ;
  • Increase biodiversity especially density of auxiliary organisms ;
  • Increase frequency and duration of attractive flowers ;
  • Reduce erosion ;
  • Improve soil structure.
List of species sown Anacyclus clavatus
Anisantha rigida
Asphodelus fistulosus
Astragalus hamosus
Avena sp.
Avenula bromoides
Bartsia trixago
Bituminaria bituminosa
Brachypodium phoenicoides
Bromopsis erecta
Bromus hordeaceus
Bromus lanceolatus
Cota altissima
Cota tinctoria
Crepis vesicaria ssp. taraxacifolia
Cynoglossum creticum
Dactylis glomerata ssp. hispanica
Diplotaxis erucoides
Echium vulgare
Hirschfeldia incana
Hypochaeris glabra
Knautia integrifolia
Lathyrus ochrus
Linum usitatissimum ssp. angust.
Lolium rigidum
Lotus glaber
Malva nicaeensis
Malva pseudo-lavatera
Malva sylvestris
Mantisalca salmantica
Medicago arabica
Medicago ciliaris
Medicago doliata
Medicago lupulina
Medicago minima
Medicago orbicularis
Medicago polymorpha
Medicago rigidula
Melilotus albus
Melilotus elegans
Melilotus indicus
Nigella damascena
Papaver rhoeas
Plantago lanceolata
Rapistrum rugosum
Scabiosa atropurpurea
Scorpiurus muricatus
Scorzonera hirsuta
Scorzonera laciniata
Silene italica
Sinapis alba
Sinapis arvensis
Taraxacum sect. Erythrosperma
Taraxacum sp.
Tragopogon porrifolius
Trifolium angustifolium
Trifolium arvense
Trifolium campestre
Trifolium glomeratum
Trifolium squamosum
Trifolium stellatum
Tyrimnus leucographus
Urospermum dalechampii
Urospermum picroides
Verbascum blattaria
Verbascum boerhavii
Verbascum cf lychnitis
Verbascum sinuatum
Vicia sp. (gousse hirsute)
Vicia lutea
Vicia sativa ssp.
Vicia cf. serratifolia
Vicia cf. villosa
Protocol The experimental site consists of one 200 m² plot where seeds of 73 species were tested.
Surface tillage, with a scrubbing of the vegetation and passage of a toothed cultivar to 15 cm depth without turning the horizons, just to prepare the seed bed.
The sowing was done on the fly, in 2 passes. A first passage with the smallest seeds mixed with a substrate to homogenize (sawdust), a second with the largest seeds. The soil was raked (for hoe mixing) and a roller was passed to compress the soil.

A closure has been installed on the site to avoid predation
Free description (facultative) Monitoring
Indicators wanted
- List of species that were successfully installed (with reproductive success : new seeds produced on the site)
- Percentage of target community developed after one/two years
- Presence of related fauna (pollinators, spiders, orthoptera...)
Corresponding protocol or methods
- phytosociological survey on each plot : list of all species developed in the plot, with cover index for each of them ; in addition, cover index for vegetation (all species) / bare soil / litter for each plot. Minimum three surveys /year for each plot.
- protocol for related faune to be defined : probably an exhaustive assessment 3 times/year.
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