دورية أكاديمية
DIFERENCIAÇÃO DA VEGETAÇÃO ARBÓREA DE TRÊS SETORES DE UM REMANESCENTE FLORESTAL RELACIONADA AO SEU HISTÓRICO DE PERTURBAÇÕES
العنوان: | DIFERENCIAÇÃO DA VEGETAÇÃO ARBÓREA DE TRÊS SETORES DE UM REMANESCENTE FLORESTAL RELACIONADA AO SEU HISTÓRICO DE PERTURBAÇÕES |
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المؤلفون: | Jean Daniel Morel, José Aldo Alves Pereira, Rubens Manoel dos Santos, Evandro Luiz Mendonça Machado, João José Marques |
المصدر: | Ciência Florestal, Vol 26, Iss 1, Pp 81-93 (2016) |
بيانات النشر: | Universidade Federal de Santa Maria, 2016. |
سنة النشر: | 2016 |
المجموعة: | LCC:Agriculture LCC:Forestry |
مصطلحات موضوعية: | Agriculture, Forestry, SD1-669.5 |
الوصف: | Forest fragmentation is one of the main causes of biodiversity loss, directly affecting the ecological processes. This study aimed to evaluate tree diversity, structure, and composition parameters in three sectors of a forest fragment with distinct disturbance records. The arboreal vegetation was evaluated in twenty-four 10 × 10 m plots, sampling a total of 1,228 living individuals. We calculated Shanon’s diversity index, Pielou’s equability, and jackknife estimators of first and second orders. The sampled individuals were distributed in diameter classes and the importance value (VI) was calculated for each species. It was made a Detrended Correspondence Analysis (DCA) to verify whether there were significant distinctions between the sectors. It was noticed that the sector where there was clear cutting and vegetation burning in a recent past had higher abundance and richness but also the worst equability. That corresponds to the effects of perturbation as confirmed by the tree diameters and the presence of species of greater importance value. The sector that had no record of disturbance, situated in a location with greater variety of microenvironments, presented diversity, structure, and composition consistent with a no disturbance scenario. The other sector, which did not have clear cutting, was subjected to cattle trampling presented ecological parameters consistent with the absence of major disturbances. On the other hand, this third sector had the smallest environmental diversity, which puts this last sector in an intermediate situation. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | Portuguese |
تدمد: | 0103-9954 1980-5098 |
Relation: | http://www.redalyc.org/articulo.oa?id=53444621008; https://doaj.org/toc/0103-9954; https://doaj.org/toc/1980-5098 |
URL الوصول: | https://doaj.org/article/76e95b8626bf43abb30b925bd6f9b6d5 |
رقم الأكسشن: | edsdoj.76e95b8626bf43abb30b925bd6f9b6d5 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 01039954 19805098 |
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