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Details for article 10 of 10 found articles
| Title: |
TEMPORAL VARIATION ANALYSIS IN FLORÍSITIC AND STRUCTURE OF THE ARBOREAL COMMUNITY OF A EXPLOITED FOREST, ACCORDING TO A MANAGEMENT PLAN |
| Author: |
Nádia Waleska Valentim Pereira Nelson Venturin Evandro Luiz Mendonça Machado José Roberto Soares Scolforo Renato Luiz Grisi Macedo Marcus Viníco Neves d Oliveira |
| Appeared in: |
Cerne |
| Paging: | Volume 11 (2005) nr. 3 pages 263-282 |
| Year: |
2005 |
| Contents: |
This research was accomplished in a survey of the arboreal compartment in an area subjected to a sustainedmanagement of an open ombrófila forest located in Lábrea County, Amazon. The objective was to characterize the floristic andphysiognomic composition and, the diversity of the area, the species distribution pattern and to verify possible variations of thedistribution patterns of these arboreal species as a function of the management. To realize this work, the area has been divided in 18primaries unities with 30ha each one and from the selected ones, three unities at which has been allocated ten secondary unities (plot)of 100 x 100m (one hectare), in a total of 30ha. Each plot has been subdivided in sub plots of 10 x 10m (100m2), totalizing 100 subplotsin each secondary unity. In 20 from these unities, all the individuals with DBH (Diameter at breast height) 3cm were measured,while in the 80 lefts, all the individuals ones with DBH 6 cm have been measured. The results showed a total of 16.487 individualsinventoried before the exploitation and a total of 15.328 individuals after the exploitation. The 10 families that occur more frequentlyrepresent 53% of the sampled trees. The diametric distribution didn t present significant variation among the events. The values ofShannon s Index (H = 4.738 and H = 4.735), of Pielou s equability index (J = 0.803 and J = 0.804) and of Simpson s Index (0.01803and 0.01805), before and after the exploitation, respectively, indicate high diversity in the area. Most of the species (53.6%) presented a random distribution pattern. |
| Publisher: |
Universidade Federal de Lavras - UFLA (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 10 of 10 found articles
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