Resumo

KEES, S. M. et al. Characterizing the Structure and Floristic Composition of two forest types in the northwest of the province of Chaco. Quebracho (Santiago del Estero) [online]. 2021, vol.29, n.1, pp.39-49.  Epub 01-Mar-2021. ISSN 0328-0543.

A sustainable forest management requires knowing ecological aspects and the design of silvicultural guidelines adjusted to them. The objective of the work was to characterize the tree composition, diversity, horizontal and vertical structure of two types of forest in the northwest of the province of Chaco, Argentina identified as High Open Forest and Low Open Forest. The data collected come from a forest inventory of 3,665 ha of woodlands covering 4,978 ha. In the High Open Forest, 14 species and 8 botanical families were found while in the Low Open Forest 8 species and 6 families. The mixing coefficient reached values of 1:19 and 1:26 respectively. On the basis of the importance value index together with the cover values, the most important species were Aspidosperma quebracho-blanco, Ziziphus mistol and Schinopsis lorentzii. Both forest types showed notable differences concerning the continuity of the height strata as well as in the presence of individuals in the largest diameter classes.

Palavras-chave : native forest; community; ecology; western Chaco.

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