Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning
Abstract: Biomass is an important component of the Brazilian energy matrix, with a potential contribution of co-products from thinned forests. The aim of this work was to evaluate the energy balance and CO2 potential emission in mechanized biomass harvesting operations in Pinus taeda stands at 9 an...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2019-11-01
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| Series: | Anais da Academia Brasileira de Ciências |
| Subjects: | |
| Online Access: | http://www.scielo.br/pdf/aabc/v91n4/0001-3765-aabc-91-04-e20180839.pdf |
| _version_ | 1798026069113044992 |
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| author | CARLA K. RODRIGUES EDUARDO S. LOPES DIMAS A. SILVA AFONSO FIGUEIREDO FILHO ALLAN L. PELISSARI |
| author_facet | CARLA K. RODRIGUES EDUARDO S. LOPES DIMAS A. SILVA AFONSO FIGUEIREDO FILHO ALLAN L. PELISSARI |
| author_sort | CARLA K. RODRIGUES |
| collection | DOAJ |
| description | Abstract: Biomass is an important component of the Brazilian energy matrix, with a potential contribution of co-products from thinned forests. The aim of this work was to evaluate the energy balance and CO2 potential emission in mechanized biomass harvesting operations in Pinus taeda stands at 9 and 10 years-old and under thinning, searching to support the use of co-product biomass from thinning as a renewable energy source. Thinning was carried out through cut-to-length harvesting method, in which large logs for sawmill and small logs for energy were produced. In addition, tops, needles, barks, and branches were considered as co-products. The balance between consumed energy and emitted CO2 by machines for thinning in relationship to the energy and CO2 in thinned biomass was estimated. Thus, dry matter, energy potential, and CO2 potential emission were evaluated and compared considering thinning stand ages as treatments. Mechanized thinning consumes a large energy and produces CO2, however, the energy consumed by machines is lower than 1% of the estimated energy potential in thinned biomass, while the CO2 emission is lower than 0.5% of the biomass. Therefore, the use of co-product biomass of thinning is an important way to mitigate greenhouse gas emission. |
| first_indexed | 2024-04-11T18:30:20Z |
| format | Article |
| id | doaj.art-ee889ac84bbd4692b92f437ccd6ac4ae |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-04-11T18:30:20Z |
| publishDate | 2019-11-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-ee889ac84bbd4692b92f437ccd6ac4ae2022-12-22T04:09:30ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902019-11-0191410.1590/0001-3765201920180839Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinningCARLA K. RODRIGUEShttps://orcid.org/0000-0001-5551-1914EDUARDO S. LOPESDIMAS A. SILVAAFONSO FIGUEIREDO FILHOALLAN L. PELISSARIAbstract: Biomass is an important component of the Brazilian energy matrix, with a potential contribution of co-products from thinned forests. The aim of this work was to evaluate the energy balance and CO2 potential emission in mechanized biomass harvesting operations in Pinus taeda stands at 9 and 10 years-old and under thinning, searching to support the use of co-product biomass from thinning as a renewable energy source. Thinning was carried out through cut-to-length harvesting method, in which large logs for sawmill and small logs for energy were produced. In addition, tops, needles, barks, and branches were considered as co-products. The balance between consumed energy and emitted CO2 by machines for thinning in relationship to the energy and CO2 in thinned biomass was estimated. Thus, dry matter, energy potential, and CO2 potential emission were evaluated and compared considering thinning stand ages as treatments. Mechanized thinning consumes a large energy and produces CO2, however, the energy consumed by machines is lower than 1% of the estimated energy potential in thinned biomass, while the CO2 emission is lower than 0.5% of the biomass. Therefore, the use of co-product biomass of thinning is an important way to mitigate greenhouse gas emission.http://www.scielo.br/pdf/aabc/v91n4/0001-3765-aabc-91-04-e20180839.pdfbiomass energyco-product forest biomassforest harvestingsustainability |
| spellingShingle | CARLA K. RODRIGUES EDUARDO S. LOPES DIMAS A. SILVA AFONSO FIGUEIREDO FILHO ALLAN L. PELISSARI Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning Anais da Academia Brasileira de Ciências biomass energy co-product forest biomass forest harvesting sustainability |
| title | Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning |
| title_full | Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning |
| title_fullStr | Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning |
| title_full_unstemmed | Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning |
| title_short | Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning |
| title_sort | energy balance and co2 emission in mechanized biomass harvesting in pine stands under thinning |
| topic | biomass energy co-product forest biomass forest harvesting sustainability |
| url | http://www.scielo.br/pdf/aabc/v91n4/0001-3765-aabc-91-04-e20180839.pdf |
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