Comparison between the soil seed banks of a burnt and an unburnt Quercus pyrenaica Willd. forest
Identifieur interne : 000248 ( France/Analysis ); précédent : 000247; suivant : 000249Comparison between the soil seed banks of a burnt and an unburnt Quercus pyrenaica Willd. forest
Auteurs : L. Valbuena [Espagne] ; L. Trabaud [France]Source :
- Vegetatio [ 0042-3106 ] ; 1995-07-01.
Abstract
Abstract: Soil samples from burnt and unburnt sites dominated by Quercus pyrenaica Willd. forest in León province (NW Spain) were collected, separated into an upper layer (0–2 cm depth) from a lower layer (2–5 cm), put in a greenhouse, and seeds allowed to germinate. A total of 670 identified seedlings comprising 56 species and belonging to 24 families were recorded. Most seedling were herbaceous perennials (hemicryptophytes: 59%), followed by annuals (therophytes: 23%). Many species that germinated from buried seeds were not observed as plants at any site, and came from exogenous communities. The principal means of seed dissemination were anemochory (45%) and autochory (23%). The number of species as well as seedlings was not significantly different between soils from the burnt and unburnt sites, but seedlings were more numerous in samples from the unburnt sites, as the number of seedlings was always highest in the upper soil layer. Germination behaviour of four particular species was characterized. Seedlings from the seed bank temporarily were found in the early stages of recovery of the burnt Quercus pyrenaica forests.
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DOI: 10.1007/BF00047372
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Valbuena</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>Area de Ecología, Facultad de Biología, Universidad de León, Campus de Vegazana, 24071, León</wicri:regionArea><wicri:noRegion>León</wicri:noRegion></affiliation></author><author><name sortKey="Trabaud, L" sort="Trabaud, L" uniqKey="Trabaud L" first="L." last="Trabaud">L. Trabaud</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Centre d'Ecologie Fonctionelle et Evolutive L. 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A total of 670 identified seedlings comprising 56 species and belonging to 24 families were recorded. Most seedling were herbaceous perennials (hemicryptophytes: 59%), followed by annuals (therophytes: 23%). Many species that germinated from buried seeds were not observed as plants at any site, and came from exogenous communities. The principal means of seed dissemination were anemochory (45%) and autochory (23%). The number of species as well as seedlings was not significantly different between soils from the burnt and unburnt sites, but seedlings were more numerous in samples from the unburnt sites, as the number of seedlings was always highest in the upper soil layer. Germination behaviour of four particular species was characterized. Seedlings from the seed bank temporarily were found in the early stages of recovery of the burnt Quercus pyrenaica forests.</div></front></TEI><affiliations><list><country><li>Espagne</li><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement></list><tree><country name="Espagne"><noRegion><name sortKey="Valbuena, L" sort="Valbuena, L" uniqKey="Valbuena L" first="L." last="Valbuena">L. Valbuena</name></noRegion></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Trabaud, L" sort="Trabaud, L" uniqKey="Trabaud L" first="L." last="Trabaud">L. Trabaud</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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