Comparison between growth performance in two silvopastoral systems comprising trees, short-lived perennial shrub, a forage, and livestock)

Abstract

We aim to determine the growth performance of two 20-year-old silvopastoral systems comprising two timber trees, a palm tree), a short-lived perennial shrub, a forage and livestock; and to investigate fibre features and certain physical and mechanical properties of two timber trees (Myracrodruon urundeuva and Peltophorum dubium) in two plantation systems. The first system is called MP with two timber trees and the second one is called MPS with two timbers and a palm tree. The studied systems showed that it was possible to successfully combine fast-growing species, animals, forage and woody tree species, with a production cycle of more than 50 years of different goods and services (e.g., ornamentals, palm hearts, landscaping, fruits, seeds, bee pasture, meat, and wood). The height, diameter and volume for M. urundeuva trees in the MP system were greater than in the MPS system, whereas no difference between the systems was observed for P. dubium. By comparison, the growth and volume in P. dubium were greater than in M. urundeuva. For wood properties, it was shown that both systems can be used successfully, but the MPS system performed better than the MP system, in the aim of wood production of high mechanical strength and calorific value. In addition, the MPS intercropping system can yield more goods and services than the MP system, both systems bring returns with short-term (bean seed, forage, pasture), medium-term (forage, palm products, pasture, wood), and long-term (wood) financial returns.

Agrossilvipastoril systems such as timber production options and carbon stock

“…In another study on agrosilvi-pastoral systems using the species Myracrodruon urundeuva and Peltophorum dubium, it was found that this system can be used successfully, as they produce wood with greater mechanical resistance and better quality for energy (Longui et al 2021). In a study with Tectona grandis wood from an agrosilvi-pastoral system, it was found that when compared with literature results referring to homogeneous plantations, teak wood from an agrosilvi-pastoral system maintained its technological qualities in terms of basic density, the which is a favorable option for the use of this species in the format of associated plantations (Oliveira et al 2020).…”

“…In summary, agrossilvipastoril systems have shown to be promising in several aspects, being possible to successfully combine fast-growing shrub species, resistant grasses consumed by animals and tree species that can produce different products with a cycle of more than 50 years, for example, ornamental plants, hearts of palm, landscaping, fruits, seeds, bee pasture and wood with different properties (Longui et al 2021).…”

O manejo do ambiente luminoso em sistemas agroflorestais de usos múltiplos

“…(KLEIN et al, 2017; PORTELA, SILVA e PINÃ-RODRIGUES, 2001), em plantios comerciais a pleno sol(HEID et al, 2016), integrada a sistemas agroflorestais(LONGUI et al, 2021), não foram encontrados trabalhos de médio e longo prazo para a espécie, sob diferentes condições de A partir dos resultados observados pela presente pesquisa, as recomendações técnicas para o plantio de P. dubium com fins comerciais podem ser aperfeiçoadas. Visto que, o…”