Data/hora: 21/06/2024 05:49:15

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 10/03/2023
Data da última atualização: | 10/03/2023
Autoria: | RODRIGUES-HONDA, K. C. da S.; JUNKES, C. F. de O.; LIMA, J. C.; WALDOW, V. de A.; ROCHA, F. S.; SAUSEN, T. L.; BAYER, C.; TALAMINI, E.; FETT-NETO, A. G.
Afiliação: | KELLY CRISTINE DA SILVA RODRIGUES-HONDA; CAMILA FERNANDA DE OLIVEIRA JUNKES; JÚLIO CÉSAR DE LIMA; VINICIUS DE ABREU WALDOW; FERNANDO SOUZA ROCHA, CPAC; TANISE LUISA SAUSEN; CIMÉLIO BAYER; EDSON TALAMINI; ARTHUR GERMANO FETT-NETO.
Título: | Carbon Sequestration in Resin-Tapped Slash Pine (Pinus elliottii Engelm.) Subtropical Plantations.
Ano de publicação: | 2023
Fonte/Imprenta: | Biology v. 12, n. 324, 2023.
Páginas: | 26 p.
Idioma: | Português
Conteúdo: | Every year more than 150,000 tons of resin used in a myriad of industrial applications are produced by Brazilian plantations of Pinus elliottii Engelm. (slash pine), which are also used for timber. A pine tree can be tapped for resin over a period of several years. Resin is a complex mixture of terpenes, which are carbon-rich molecules, presumably influencing pine plantation carbon budgets. A total of 270 trees (overall mean DBH of 22.93 ± 0.11 cm) of 14-, 24-, and 26-year-old stands had their C content measured. Three different treatments (intact, wounded panels, and wounded + chemically stimulated panels, 30 trees each) were applied per site. Above- and belowground biomass, as well as resin yield, were quantified for two consecutive years. Data were statistically evaluated using normality distribution tests, analyses of variance, and mean comparison tests (p &#8804; 0.05). The highest resin production per tree was recorded in the chemically stimulated 14-year-old stand. Tree dry wood biomass, a major stock of carbon retained in cell wall polysaccharides, ranged from 245.69 ± 11.73 to 349.99 ± 16.73 kg among the plantations. Variations in carbon concentration ranged from 43% to 50% with the lowest percentages in underground biomass. There was no significant difference in lignin concentrations. Soils were acidic (pH 4.3 ± 0.10?5.83 ± 0.06) with low C (from 0.05% to 1.4%). Significantly higher C stock values were recorded in pine biomass compared to those reported for temperate zones. Resin-tapping biomass yielded considerable annual increments in C stocks and should be included as a relevant component in C sequestration assessments of planted pine forests.
Palavras-Chave: | Sequestro de carbono.
Thesagro: | Carbono; Pinus Elliottii; Resina.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152265/1/Fernando-Rocha-Carbon-Sequestration-in-Resin-Tapped-Slash-Pine.pdf
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (37509-1) - UPC - AP - DD - DIGITAL -  - DIGITAL - DIS