Data/hora: 01/06/2024 02:49:35

Provedor de dados: | PFB - Pesquisa Florestal Brasileira
País: | Brazil

Título:

Nutrients in the aerial biomass and litter in Caatinga areas in floresta, Pernambuco State, Brazil

Nutrientes na biomassa aérea e na serapilheira em áreas de caatinga em Floresta, PE

Autores: | Alves, Allyson Rocha; Ferreira, Rinaldo Luiz Caraciolo; da Silva, José Antônio Aleixo; Dubeux Júnior, José Carlos Batista; Salami, Gabriela.
Data: | 2017-12-29
Ano: | 2017
Palavras-chave: | Biogeochemical cycle; Regeneration; Dry forest Recursos Florestais; Engenharia Florestal Ciclo biogeoquímico; Regeneração; Floresta seca.
Resumo: | This study aimed to quantify nutrient content in shoot biomass components and litter in two areas of savanna vegetation with different ecological characteristics, one in regeneration and the other as a preserved area, in Floresta, Pernambuco State, Brazil. It was carried out an initial inventory launching 40 plots of 400 m2 in each area, with inclusion level of circumference at 1.3 m above ground level ≥ 6.0 cm. The five species with highest importance value were used for biomass analysis. Chemical analysis were carried out in samples of 100 g taken from the different component of each of those species. To estimate the stock of litter assortments were made in dry and rainy seasons, using a hollow square mold with 0.5 m randomly released in plots. It was observed that the nutrient content found in total biomass in both areas followed the same sequence: N &gt; Ca &gt; K &gt; Mg &gt; P &gt; S. Litter stock from the preserved area were higher in all fractions, however differences were observed between seasons. In the dry season the sequence was: N &gt; Ca &gt; S &gt; K &gt; Mg &gt; P, and in the rainy season N &gt; Ca &gt; K &gt; S &gt; P &gt; Mg in both areas. When the nutrient content was available, the litter presented the highest nutrient contents compared to those present in the biomass above the soil.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1060

10.4336/2017.pfb.37.92.1060

Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1060/598
Formato: | application/pdf

Fonte:

Pesquisa Florestal Brasileira; v. 37, n. 92 (2017): out./dez.; 413-420

Brazilian Journal of Forestry Research; v. 37, n. 92 (2017): out./dez.; 413-420

1983-2605

1809-3647

Fonte: | http://creativecommons.org/licenses/by-nc-nd/4.0