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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wu, Lichao Shinzato, Takakazu Kudo, Takami Ishigaki, Choken Aramoto, Mitsunori |
| Copyright Year | 2008 |
| Abstract | • To elucidate the application of natural regeneration to the restocking of evergreen broad-leaved forests in the subtropics, the characteristics of a 20-year-old evergreen broad-leaved forest restocked by natural regeneration after clearcut-burning were studied in Okinawa, Japan. Within a 0.87 ha clearcut area with four 10 m × 10 m sampling plots, two burned and two unburned ones, the tree composition, tree species diversity and vegetation changes were investigated. • The results showed that the species diversity, basal area and density of woody stems ⩾ 1.0 m in height differed significantly among phanerophyte types, while they were not significantly different between the burned and unburned treatments. A vegetation census also revealed no obvious differences between the treatments. • The primary dominant species, Castanopsis sieboldii, continued to dominate the secondary forest with a broad height distribution. • The structural complexity and high tree species diversity of the regenerating forest after clearcut-burning provides no evidence of degeneration. We can predict that the regeneration forest may gradually develop into stands similar to pre-clearcut primary forest, and that natural regeneration may restore the high tree species diversity of the evergreen broad-leaved forests in Okinawa. • Pour élucider la pertinence de la régénération naturelle pour la reconstitution des forêts feuillues dans la zone subtropicale, les caractéristiques d’une forêt feuillue sempervirente, âgée de 20 ans, reconstituée par régénération naturelle après coupe rase et feu, ont été étudiées à Okinawa au Japon. Dans une coupe rase de 0,87 ha, 4 placeaux échantillons de 10 m × 10 m ont été établis : deux après coupe rase et feu et deux après coupe rase. On a étudié la composition des arbres, la structure de la forêt, la diversité spécifique des arbres et les changements de végétation. • Les résultats montrent que la diversité spécifique, la surface terrière et la densité des troncs ligneux d’une hauteur supérieure ou égale à 1,0 m différent significativement parmi les phanérophytes, tandis qu’il n’y a pas eu de différences significatives entre les traitements brûlés et les non brûlés. Le recensement de la végétation a aussi révélé qu’il n’y avait pas de différence évidente entre les traitements. • La principale espèce dominante Castanopsis sieboldii a continué à dominer la forêt secondaire avec une large distribution des hauteurs. • La complexité structurelle et la grande diversité des espèces d’arbre de la forêt régénérée après coupe rase et feu fournissent la preuve qu’il n’y a pas eu dégénérescence. Nous pouvons prédire que ces forêts peuvent se développer graduellement en peuplements similaires à la forêt primaire existant avant la coupe et que la régénération naturelle peut rétablir la grande diversité spécifique des arbres dans les forêts feuillues sempervirentes d’Okinawa. |
| Starting Page | 505 |
| Ending Page | 505 |
| Page Count | 1 |
| File Format | |
| ISSN | 12864560 |
| Journal | Annals of Forest Science |
| Volume Number | 65 |
| Issue Number | 5 |
| e-ISSN | 1297966X |
| Language | French |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-01-01 |
| Publisher Institution | Institut National de la Recherche Agronomique (INRA) |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Forestry Wood Science & Technology Forestry Management Tree Biology Environment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Forestry |
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