Silvicultural performance of forest species introduced in integrated livestock forest system in Lavras, MG, Brazil

Abstract

The objective of this study was to evaluate the silvicultural performance of four forest species introduced in a setting for integrated livestock forest (ILF) in a pasture in Lavras, Minas Gerais, Brazil. The species included were the Australian red cedar (seminal and clonal), African mahogany, teak, and guanandi. A split plot scheme with a randomized complete block design comprising four replicates and 48 plants per plot, was used in the following arrangement: (3(3x2) +7x2) m. The evaluation times (12, 18, 31, 36, and 43 months after planting) corresponded to the subplots. Performances of all four species were evaluated on the basis of their survival rate, height (H) and diameter at breast height (DBH). Based on the performance of the species with regard to these parameters, the clonal Australian red cedar showed a greater growth in DBH and height in the ILF setting as compared to the other species, which indicates it to be a suitable species for the region of Lavras, MG as long as its survival control occurs in the implantation phase.

Comportamento Silvicultural De Espécies Florestais Em Arranjo Para Integração Pecuária Floresta

“…Um dos parâmetros que permite constatar a real adaptação dos genótipos introduzidos em ambientes exóticos é o potencial de estabelecimento, uma vez que este expressa a capacidade de adaptação e o vigor das mudas em condições ecológicas observadas no campo após o plantio, tendo em vista a maior magnitude da interação genótipo ambiente "in loco" (MACEDO et al, 2010;NIERI et al, 2017).…”

“…Por consequência, considera-se imprescindível o estudo do comportamento silvicultural das espécies inseridas em arranjo no sistema IPF, decorrente da necessidade de se obterem respostas de adaptação à região de implantação, frente às reais condições ambientais, a produtividade do material genético em estudo, de modo a estabelecer a necessidade de iluminação, e o porte alcançado de cada espécie e seu comportamento sob condições edafoclimáticas (OLIVEIRA et al, 2009;NIERI et al, 2017).…”

Dendrometric evaluation of a clonal population of Tectona grandis in forest-livestock system

“…The forest-livestock integration system (LFIS) stands out among the various types of systems, with inclusion of tree components providing animal comfort and improving soil fertility, resulting in greater productivity and profitability for rural producers due to the production timber products and animal protein in the same area (PAULA et al, 2013). Study of the silvicultural behavior of the species inserted in the LFIS is relevant, especially forest species with potentially high-value timber (NIERI et al, 2017). The Tectona grandis L. F. (teak) species from the tropical monsoon forests of Southeast Asia (MORETTI et al, 2014) shows potential for reforestation and the production of wood for sawmills (SILVA et al, 2016).…”