Enhancing seedling production of native species to restore gypsum habitats.

摘要: Gypsum habitats are widespread globally and important for biological conservation. Nevertheless, they often affected by human disturbances thus require restoration. Sowing planting have shown positive results, but these actions usually limited the lack of native plant material in commercial nurseries, very little information is available on propagation species. We address this issue from hypothesis that gypsum added to a standard nursery growing medium (peat) can improve seedling performance species and, therefore, optimise production outplanting purposes. test effect emergence, survival, growth nine species, including gypsophiles (exclusive gypsum) gypsovags (non-exclusive gypsum). used four treatments according proportions, weight, gypsum:standard peat (G:S), i.e. high-g (50G:50S), medium-g (25G:75S), low-g (10G:90S), standard-p (0G:100S). Our results showed especially benefited emergence stage, as group, Ononis tridentata taxon. In particular, enhanced seven survival three two gypsophiles, while use favoured only or gypsovags. Improving at provide reduction costs associated with seed harvesting, watering, space, enlarging seedlings favour establishment individuals after outplanting. Thus, we suggest adding propagating habitats, thereby potentially cutting restoring such habitats. assessment enables us particular advice general, recommend using between 25 50% propagate 0 10% The benefit not widely distributed commonly quarrying, also narrow threatened endemic particularly efficient their seeds. addition, our study highlights importance appropriate media plants characteristic special substrates restoration