التفاصيل البيبلوغرافية
| العنوان: |
Energy balance and CO2 emission in mechanized biomass harvesting in pine stands under thinning. |
| المؤلفون: |
Rodrigues CK; Departamento de Ciências Florestais, Universidade Federal do Paraná /UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil., Lopes ES; Departamento de Engenharia Florestal, Universidade Estadual do Centro-Oeste/UNICENTRO, PR 153, Km 7, 84500-000 Irati, PR, Brazil., Silva DA; Departamento de Ciências Florestais, Universidade Federal do Paraná /UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil., Figueiredo Filho A; Departamento de Engenharia Florestal, Universidade Estadual do Centro-Oeste/UNICENTRO, PR 153, Km 7, 84500-000 Irati, PR, Brazil., Pelissari AL; Departamento de Ciências Florestais, Universidade Federal do Paraná /UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil. |
| المصدر: |
Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2019 Nov 25; Vol. 91 (4), pp. e20180839. Date of Electronic Publication: 2019 Nov 25 (Print Publication: 2019). |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: Academia Brasileira De Ciencias Country of Publication: Brazil NLM ID: 7503280 Publication Model: eCollection Cited Medium: Internet ISSN: 1678-2690 (Electronic) Linking ISSN: 00013765 NLM ISO Abbreviation: An Acad Bras Cienc Subsets: MEDLINE |
| أسماء مطبوعة: |
Original Publication: Rio De Janeiro : Academia Brasileira De Ciencias |
| مواضيع طبية MeSH: |
Biomass* , Carbon Dioxide* , Forests* , Pinus taeda* |
| مستخلص: |
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. |
| المشرفين على المادة: |
142M471B3J (Carbon Dioxide) |
| تواريخ الأحداث: |
Date Created: 20191129 Date Completed: 20191212 Latest Revision: 20191217 |
| رمز التحديث: |
20221213 |
| DOI: |
10.1590/0001-3765201920180839 |
| PMID: |
31778452 |
| قاعدة البيانات: |
MEDLINE |
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