Sistemas silvipastoris com eucalipto: estocagem de carbono em diferentes espaçamentos e clones

Ciencia Florestal

article

Bruno Leão Said Schettini¹  Laércio Antônio Gonçalves Jacovine¹  Carlos Moreira Miquelino Eleto Torres¹  Silvio Nolasco de Oliveira Neto¹  Samuel José Silva Soares da Rocha¹  Paulo Henrique Villanova¹  Eliana Boaventura Bernardes Moura Alves¹  Maria Paula Miranda Xavier Rufino¹ 

[1] Universidade Federal de Viçosa

关键词: Dendrometric database;    Wood density;    Spacing;    Climate change;   

DOI  :  10.5902/1980509825281

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Pesquisas Florestais

【 摘 要 】

This study aimed to compare the use of different eucalypt spacing and clones in carbon storage in six silvopastoral systems (SSP) located in Porto Firme - MG. Experiments containing six SSP were used in the field, with clones GG100, I144, and I224, hybrids of Eucalyptus grandis x Eucalyptus urophylla, in the spacing of 6m x 4m and 8m x 4m, at the ages of 60 and 96 months. The forest inventory carried out was of the census type, where all the trees had their circumference at 1,30 m in height (CAP) measured and separated into diametric classes. The volume was estimated based on the Spurr model. The wood density was calculated by the method of immersion in water and the carbon stock by the factor of 0,47. The genetic material I224, spaced 6m x 4m, had the highest potential for carbon storage. The basic density for the three clones, in 6m x 4m spacing, did not vary statistically, however, in 8m x 4m spacing, for the genetic materials GG100 and I224, there was a difference. It was possible to conclude that the genetic material I224, in 6m x 4m spacing (24 m2 per plant), has the highest potential for carbon storage and that SSP with eucalypt contributes to low-carbon agriculture and mitigation of climate change.

【 授权许可】

CC BY-NC