ESTUDO DA COBERTURA VEGETAL EM AMBIENTES DA CAATINGA COM DIFERENTES FORMAS DE MANEJO NO ASSENTAMENTO MOACIR LUCENA, APODI - RN
2008
Marcos de Freitas Pessoa | Antonia Mirian Nogueira de Moura Guerra | Patrício Borges Maracajá | José Flaviano Barbosa de Lira | Edimar Teixeira Diniz Filho
The work was conducted in two environments of caatinga, occurring in the Moacir Lucena accomplished, Apodi - RN. 12 plots have been demarcated 10 x 20 m, randomly distributed in each environment, characterized as follows: Area I - managed area and Area II - area of legal reserve of Accomplished. In each plot were sampled all individuals with CAB ¿ 10 cm. In Area I were sampled 130 individuals, five families and eight species, while in Area II, 244 individuals, four families and seven species. The Mimosoideae and Boraginaceae families are highlighted by number of individuals. Caesalpinea bracteosa presented greater number of individuals in the environment I and Auxemma glazioviana the environment II. The environment I made highest diversity of the Shannon- Weaver (H'), 1,10. In the environment I Caesalpinea bracteosa and Auxemma glazioviana were the species that showed higher frequencies, densities and dominances relatives, index of importance and value of coverage. Auxemma glazioviana presented highest density, dominance, frequency, IVC and IVI in the environment II. In the environment I most individuals presented stem diameter of between 11 and 21 cm, while the environment II, less than 11 cm.
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