Dinâmica de uma floresta submetida a manejo florestal na Amazônia Sul Ocidental
The continuous forest inventory was adopted in the Antimary State Forest from 1999 to see how the forest structure would behave after being held forest management serving as a base of information for scientific organizations and government, as it was the first forest state of Acre. We performed stud...
| Autor principal: | Veras, Hudson Franklin Pessoa |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/5070 http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4231984T8 |
| Resumo: |
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The continuous forest inventory was adopted in the Antimary State Forest from 1999 to see how the forest structure would behave after being held forest management serving as a base of information for scientific organizations and government, as it was the first forest state of Acre. We performed studies on floristic diversity, the phytosociological parameters were calculated, analyzed basal area, volume and mortality rate has been adjusted by a linear model to estimate the future growth of the forest. To identify the forest inventory was conducted in the future projection of the chain diameter classes using Markov transition probability for the years 2013 using portions of the periods of 2001 and 2007. For UPA Tabocal held the projection for the year 2007, because it had three measurement periods (2001, 2004 and 2007), it was possible to verify whether the chain adjusts to this site, comparing the observed data with estimated. We used data from permanent plots for the years 2001 and 2007 for the study. The diversity index of diversity index of Shannon and Weaver was 5.054 e Pilou equabilty 0.853 and evenness for the year 2001, virtually the same was found in 2007, very small variation. The volume of the plots in 2001 ranged from 116.82 m³.ha-1 to 183.62 m³.ha-1 in 2007 and the range was 144.48 m³.ha-1 to 206.93 m³.ha-1. The annual increment in volume of the forest within the period of six years was 4.24 m³.ha-1. The mortality rate for UPA Tabocal was 3.87%. The model obtained by linear regression IPADAP = 0,59709 + Xij*(0,00273) + Yij*(0,06252) + Zij*(-0,03179) estimated the growth of the UPA Tabocal with optimal parameters R² = 0.9963 and CV = 6.82%. The projections made using the Markov chain for both the year 2013 (entire forest) and for the year 2007 (Tabocal UPA) could not be validated, because the periods are very short of projections is recommend to use longer intervals for have greater precision in the projection. The study concluded that more observations are necessary to have measures to generate more reliable estimates, however, the results found in this study provided basic information for decision making authorities. |