Thesis (Ph. D.)--University of Wisconsin-Madison, 1986. / Cover title. Includes bibliographical references (p. 362-387).

Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv., 2003. / Härtill 4 uppsatser.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-04-18T14:35:25Z No. of bitstreams: 1 gabrielamontessideoliveiraamaral.pdf: 1756455 bytes, checksum: a599c0846febf87b1be49e2eb2f26c16 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-04-24T03:11:25Z (GMT) No. of bitstreams: 1 gabrielamontessideoliveiraamaral.pdf: 1756455 bytes, checksum: a599c0846febf87b1be49e2eb2f26c16 (MD5) / Made available in DSpace on 2016-04-24T03:11:25Z (GMT). No. of bitstreams: 1 gabrielamontessideoliveiraamaral.pdf: 1756455 bytes, checksum: a599c0846febf87b1be49e2eb2f26c16 (MD5) Previous issue date: 2015-12-02 / CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico / O setor de florestas plantadas vem ganhando cada vez mais espaço na economia brasileira e já representa 5,5% de todo o PIB industrial nacional. Os fatores que tem garantido o destaque dos reflorestamentos brasileiros são as vantagens proporcionadas por suas condições edafoclimáticas, propícias ao plantio de espécies exóticas como o eucalipto e o pinus e, principalmente, os elevados investimentos em pesquisa e tecnologia que tem assegurado elevadas produtividades. Dentre os estados da federação que possuem as maiores áreas de florestas plantadas, Minas Gerais se encontra na primeira posição. A importância do estado no setor sempre esteve atrelado à siderurgia, principal segmento industrial mineiro, que utiliza o carvão vegetal, combustível obtido através da carbonização da madeira, para movimentar seus fornos. Assim, algumas regiões mineiras se especializaram na produção de florestas energéticas para suprir a demanda por esse insumo das siderúrgicas, dentre elas, a microrregião de Curvelo. Nesse sentido, ocorre uma divisão territorial do trabalho em que a microrregião participa de um “momento” da produção ou fase produtiva de uma cadeia superior que se articula com outros subespaços para ser realizada. No que tange à operacionalização da pesquisa, os aspectos teóricos-metodológicos se baseiam predominantemente na categoria norteadora deste trabalho: o conceito de região, e na investigação da organização dos agentes, a montante e a jusante, que participam do processo produtivo florestal, buscando abordá-los de forma articulada. Por fim, objetivo deste trabalho é analisar a dinâmica regional da produção florestal na microrregião de Curvelo, considerando que dentre os elementos definidores da região na contemporaneidade destacamos a coerência funcional e sua capacidade de rentabilizar investimentos. / The sector of planted forest have been gaining ground in Brazilian economy and already represents 5,5% of industrial GPD. Even though, in face of its territorial extension, Brazil still presents a planting area that is considered far lower than its potential, holding the seventh position on the world stage. Some factors have ensured the highlight of Brazilian reforestation, such as the advantages provided by its climate and soil conditions, favorable to the planting of exotic species like eucalyptus and pine, and, essentially, research and technology high investments that assures elevated productivity. Among the states that own the highest areas of planted forest, Minas Gerais holds the first position. The importance of this state in the sector has always been related to ferrous metallurgy, the main industrial segment of Minas Gerais, which uses charcoal obtained from wood carbonization to stoke up its furnaces. Thus, some regions of this state have specialized in the production of forests in order to supply the demand of this ferrous metallurgy input, such as the microregion of Curvelo. Therefore, there is a territorial division of the work in which the microregion takes place of a “moment” in production or productive stage of a superior chain which articulates with other subspaces in order to be accomplished. The objective of this work is to analyze the regional dynamics of forestry production in microregion of Curvelo, considering that, among the defining elements of the region in contemporaneity, functional coherence and its capacity to monetize investments are highlighted.

Global warming is caused by the human induced increase of Greenhouse Gases (GHG) in the atmosphere. GHG emissions need to be reduced, and carbon dioxide (CO2) emissions from fossil sources ceased to mitigate global warming. Energy production and use is a main contributor to fossil sourced emissions in Europe. Sweden has a high part renewable power production but not completely, to have a 100% renewable power production by 2040 is a goal set by Swedish government. By 2045 Sweden also plans to have net zero emissions nationwide and afterwards negative emissions of CO2, to reduce global warming and reach the Paris agreement of maximum 1.5°C global warming level it is urgent and vital to create Carbon (C) sinks and to reach neutral and even negative emissions within the energy sector. Negative emissions can be reached in Combined Heat and Power plants (CHP) by Bio Carbon Capture and Storage (Bio-CCS). Demand on wood chips and bio-energy fuel is increasing on the European continent. A local source of biofuel might contribute to shorter transports, a local C-sink, security in supply and a way to meet both the increasing competition of fuel and the environmental political targets. Here we investigate the available land for local production of bioenergy forests in Södertälje and the amount of energy possible to produce from that. Using a detailed biotope database over the municipality, Biotopdatabasen, and a Geographical Information System (GIS) based approach 5 scenarios of potential land areal for planting of energy forests in the municipality have been analysed. Different criteria selections in biotopes, grasslands and historical crop fields, and land use, used or un-used, builds the scenarios; 1. All available grasslands, 1010 ha, 2. All available grasslands on earlier crop fields, 815 ha, 3. Unused available grassland on earlier crop field, 300 ha, 4. Available land on earlier crop fields, including forestry, 1715 ha, 5. Unused available land on earlier crop fields, 366 ha. Gross annual energy yields from energy forest in the scenarios were estimated to; 1. 46,2-65,1 GWh/y, 2. 37,3-52,5 GWh/y, 3. 13,7-19,3 GWh/y, 4. 78,4-110,5 GWh/y, 5. 16,7-23,6 GWh/y. The yield from all these scenarios will, in the expected gross normal yield scenario, match the energy produced today by fossil fuels in the local CHP and heating plant (0.64%, 2020) yields 0.69-3.96% of total energy produced. Scenarios 3 and 5 are considered likely scenarios but the effect on spreading pathways and thereby biodiversity needs to be assessed, using old crop fields lowers the risk of harming important biodiversity and possibly help restore C sink in soils.