Sustainable use of eucalypt biomass grown on short rotation coppice for bioenergy |
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| Affiliation: | 1. Department of Rural Engineering, College of Agricultural Sciences, Sao Paulo State University, Botucatu 18610307, Brazil;2. Department of Economy, Sociology and Technology Department, College of Agricultural Sciences, Sao Paulo State University, Botucatu 18610307, Brazil;3. Department of Crop Science, College of Agricultural Sciences, Sao Paulo State University, Botucatu 18610307, Brazil;1. INRA Nancy – Lorraine, UMR 1137 ‘Ecologie et Ecophysiologie Forestières’ (EEF), route d’Amance, F-54280 Champenoux, France;2. Université de Lorraine, UMR 1137 ‘Ecologie et Ecophysiologie Forestières’ (EEF), F-54500 Vandœuvre-lès-Nancy, France;3. Université d’Orléans, UFR-Faculté des Sciences, UPRES EA 1207 ‘Laboratoire de Biologie des Ligneux et des Grandes Cultures’ (LBLGC), rue de Chartres, BP 6759, F-45067 Orléans, France;4. INRA, USC 1328 Arbres et Réponses aux Contraintes Hydriques et Environnementales (ARCHE), rue de Chartres, BP 6759, F-45067 Orléans, France;5. INRA Val de Loire, UE 0995 Génétique et Biomasse Forestières (GBFOr), 2163 avenue de la pomme de pin, 45075 Orléans cedex 2, France;6. Institut Technologique FCBA, 60 route de Bonnencontre, F-21170 Charrey-sur-Saône, France;7. INRA, UR 0588 Amélioration, Génétique et Physiologie Forestières, F-45075 Orléans, France;1. Virginia Tech Department of Forest Resources and Environmental Conservation, 228 Cheatham Hall, Blacksburg, VA 24061, USA;2. Cooperativa de Productividad Forestal, Facultad de Ciencias Forestales, Universidad de Concepción, Victoria 631, Casilla 160-C, Concepción, Chile;3. USDA Forest Service, 3041 Cornwallis Road, Research Triangle Park, NC, USA;4. Facultad de Ciencias Forestales, Universidad de Concepción, Victoria 631, Casilla 160-C, Concepción, Chile;5. Department of Forestry and Environmental Resources, Box 8008, North Carolina State University, Raleigh, NC 27695-8008, USA;1. Forestry Engineering Department of Federal, University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil;2. Soil Science Department of Federal, University of Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil;3. Department of Soils of North Carolina State University, Raleigh, NC, USA;1. UNESP-São Paulo State University, School of Agricultural Sciences, Botucatu, São Paulo 18610-307, Brazil;2. Eco&Sols, Univ Montpellier, CIRAD, INRA, IRD, Montpellier SupAgro, Montpellier, France;3. CIRAD, UMR Eco&Sols, F-34060 Montpellier, France;4. ESALQ, Forest Science Department, Escola Superior de Agricultura, Luiz de Queiroz, Universidade de São Paulo, CEP 13418-900 Piracicaba, SP, Brazil;5. ESALQ, Soil Science Department, Escola Superior de Agricultura, Luiz de Queiroz, Universidade de São Paulo, CEP 13418-900 Piracicaba, SP, Brazil;6. IRD, UMR Eco&Sols, LMI IESOL, BP 1386, CP 18524 Dakar, Senegal;1. AgriFood LCA LAB, Department of Agricultural and Environmental Sciences, Production, Landscape, Agroenergy, Università degli Studi di Milano, Via Giovanni Celoria 2, 20133, Milano, Italy;2. Consiglio per la ricerca in agricoltura e l''analisi dell''economia agraria (CREA), Unità di ricerca per le Produzioni Legnose fuori Foresta (PLF), Strada Frassineto 35, 15033, Casale Monferrato, AL, Italy;1. Department of Forest Science, Federal Rural University of Pernambuco, Recife, PE 51.020-240, Brazil;2. USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO 80526, United States;3. Department of Forest Sciences, University of São Paulo, Piracicaba, SP 13.400-000, Brazil;4. UNESP-FCA, Botucatu, SP CEP 18.610-300, Brazil;5. Department of Forest Sciences, Federal University of Lavras, Lavras, MG 37200-000, Brazil |
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| Abstract: | Bioenergy is one of the alternatives to reduce the dependence of global energy on fossil fuels. The short rotation coppice (SRC) of eucalypt species appears as an interesting option for forest biomass production in a short time. However, the harvesting of whole trees (included the crown) in SRC systems has implications on sustainable land use. More information is required on the increase of biomass as renewable energy resource to achieve the sustainability of these crops. The main objective of this research was to evaluate the sustainable use of biomass from very high-density eucalypt plantations, managed at tropical conditions for bioenergy. To accomplish this objective, the tree was fractionated into three fractions: stem, branches, and leaves, and there was determination of the dry matter, energy yield, and nutrients export. This experiment used a short rotation coppice, a hybrid clone of Eucalyptus urophylla × Eucalyptus grandis, of 2 years old. According to the results obtained, the density planting and fertilization levels have a greater influence on the dry matter yield, energy yield, and nutrient exports. The higher density planting reaches mean values of 30.9 tonnes of dry matter per hectare (t DM ha−1) and 743.3 GJ ha−1. Considering the biomass yield and nutrients export of short rotation coppice of eucalypt, the higher density planting with the lower dose of fertilization is more indicative of sustainable use. The leaves have an important participation in nutrients export and should be retained in the soil of forest. |
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| Keywords: | Forest biomass Short rotation woody crops Dry matter Energy yield Nutrients export |
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