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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
911

Compensação da reserva florestal legal como instrumento da gestão integrada floresta-água: análise jurídica / Compensation paid by the Legal Forestry Reserve as an instrument to promulgate integrated forest/water management: a legal analysis

Pompermayer, Edison Fernando 28 June 2006 (has links)
O presente estudo propôs analisar a aplicabilidade do Código Florestal, devido à obrigatoriedade da recomposição da Reserva Florestal Legal, tendo como possibilidade de recomposição a compensação da Reserva Florestal Legal em outra propriedade desde que na mesma microbacia, e no máximo na mesma Unidade de Gerenciamento de Recursos Hídricos. O objetivo geral do estudo foi ampliar o debate em torno da Reserva Florestal Legal e da sua compensação, por meio da análise de alguns conceitos considerados importantes para a gestão integrada floresta-água na propriedade rural. Tendo ainda como objetivos específicos: analisar as modificações ocorridas no Código Florestal Brasileiro no que diz respeito à Reserva Florestal Legal; identificar as vantagens técnicas ambientais da compensação; caracterizar os proprietários rurais de uma microbacia sobre a disposição em compensar a Reserva Florestal Legal; averiguar a necessidade de implantação de práticas educacionais e de fornecimento de informações legais voltadas ao proprietário rural, de forma a contribuir com a conservação da floresta e da água e colaborar para a regulamentação da compensação da Reserva Florestal Legal entre propriedades. Foi aplicado um questionário aos responsáveis por doze propriedades rurais localizadas no Município de Analândia, sendo 6 das propriedades localizadas na microbacia área de estudo, e seis delas localizadas em áreas adjacentes a esta microbacia, ambas pertencentes à subbacia Alto do Corumbataí. A microbacia de estudo foi escolhida por estar inserida na Bacia do Rio Corumbataí e ser uma área prioritária para a recuperação e a conservação florestal, além de ser uma das áreas próximas às cabeceiras de drenagem. Deve-se ressaltar sua importância na produção de água em quantidade e qualidade. As informações levantadas permitem concluir que o Código Florestal sofreu 67 alterações por meio de Medida Provisória, e, no entanto, ainda não existe regulamentação quanto à recomposição da Reserva Florestal Legal através da compensação. A possibilidade de se recompor a Reserva Florestal Legal por meio da compensação, é um instrumento muito importante para a gestão floresta-água. O desconhecimento da legislação e o desinteresse por parte dos proprietários rurais demonstram a necessidade de implantação de práticas educacionais, bem como a necessidade de se criar incentivos para a manutenção da cobertura florestal nas propriedades rurais. / The propose of this study was to analyze how The Code of Forestry is to be applied, in light of the compulsory requirement to restructure the Legal Forestry Reserve, one restructuring option being the payment of compensation by the Legal Forestry Reserve in the form of another property located in the same water basin, or at most in the same Hydro Resources Unit. The study had as its general objective the widening of discussion around the topic of the Legal Forestry Reserve and compensation by way of analysis of those ideas deemed essential for successful integrated Forestry/Water management of properties in rural areas. The study has the following specific objectives: analyzing the changes made to the Brazilian Forestry Code with regard to what it says about the Legal Forestry Reserve; identifying the technical and environmental advantages of the compensation program; making the owners of rural properties in the water basins aware of the Legal Forestry Reserve’s willingness to provide compensation; ascertaining the need to institute educational guidelines and a source of legal information that relate to owners of rural property so as to help promote the conservation of forest and water resources and collaboration with regard to regulating compensation paid by the Legal Forestry Reserve amongst the various properties. A questionnaire was submitted to twelve individuals responsible for rural properties located in the Municipality of Analândia. Six of these properties were located in the water basin under study, and six of them located out of this water basin. All the twelve properties belong to the sub-basin of Alto do Corumbataí, sandwiched in the River Corumbataí basin and being deemed a priority area regarding restoration and preservation of forest vegetation; as well as being one of the areas nearest to the drainage headwaters, an area whose importance is destined to revive through the production of good quality water in quantity. The information obtained led us to conclude that despite 67 (sixty-seven) changes made to the Forestry Code by way of a Provisional Ordinance, there is still, nevertheless, no regulatory framework in place governing the restructuring of the Legal Forestry Reserve through a program of compensation. The potential for restructuring the Legal Forestry Reserve through a compensation program is a way in the field of Forestry/Water management. Ignorance of the legislation in force or lack of interest on the part of owners of rural properties testify to the need to introduce a set of educational guidelines and foster incentives that will encourage the preservation of the current level of forest vegetation in properties located in rural areas.
912

Effects of Prescribed Fire on Timber Quality and Tree Value in the Central Hardwood Region

David Paul Mann (7471193) 17 October 2019 (has links)
<div>Prescribed fire is one of the most useful tools available to forest managers attempting to maintain oak-hickory forests in the Central Hardwood Region. Prescribed fire can be useful in promoting regeneration of desirable species groups like oak (Quercus spp.) and hickory (Carya spp.) by preparing the seedbed, managing competition, and creating canopy gaps. The use of prescribed fire has been limited by concerns regarding the effect of the practice on standing timber. A perception of strong negative effects to tree-quality and tree-value from fire originated largely from sometimes deleterious effects of wildfire on timber. Less research exists demonstrating the potential effects of controlled, prescribed burning on timber quality and value. Furthermore, most research that exists focuses on individual tree characteristics, and is often focused on a relatively small geographic areas.</div><div><br></div><div>I conducted a regional study on the effects of prescribed fire on timber quality across a gradient of the Central Hardwood Region, ranging from the Missouri Ozarks to the Appalachian foothills. I studied 139 stands in selected prescribed fire units and control sites in Mark Twain National Forest (MO), Hoosier National Forest (IN), Wayne National Forest (OH) and Daniel Boone National Forest (KY). Selected stands were dominated by hardwoods species and had variable prescribed fire histories, ranging from 0 to 6 prescribed fires. </div><div><br></div><div>Measurements were taken concurrently across this plot network for two studies. First, we assessed the estimated effect of prescribed fire on stumpage value, and secondly, we assessed wounding patterns and effects of prescribed fire on tree-quality. Loss in estimated stumpage value from prescribed fire averaged approximately 4.2% across all measured stands. Estimated loss in stumpage value varied significantly by the number of prescribed fires in the last 30 years, with increasing numbers of prescribed fires leading to higher estimated losses in stumpage value. Further, stands in Mark Twain National Forest exhibited higher estimated loss in stumpage value, exceeding 10% on average. Stands in Hoosier, Wayne, and Daniel Boone National Forest only rarely exceed 5% losses in estimated stumpage value, and averaged less than 3%. </div><div><br></div><div>Approximately 25% of trees had at least one wound associated with prescribed fire across all study sites, while approximately 5% of trees experienced a reduction in tree quality (as measured by United States Forest Service tree grade) from prescribed fire. Both the rate of wounding and rate of tree grade reduction increased with increasing numbers of prescribed fires. Stands in the western portion of the Central Hardwood Region (Hoosier and Mark Twain National Forest) exhibiting higher rates of wounding from fire compared to eastern sites (Wayne and Daniel Boone National Forest.)</div><div><br></div><div>Effects of wounding varied significantly by type of wound. Catfaces accounted for far more volume loss and reduction in tree grade than any other wound type. Alternatively, some wound types, like seams and bark slough, caused minimal tree-quality and tree-volume effects. Effects also varied by species, with higher wounding effects on sugar maple and red oak, and relatively low effects on white oak and yellow-poplar. </div><div><br></div>
913

An examination of the variables that influence the supply of Eucalyptus pulpwood timber to NCT strategic markets in KwaZulu-Natal.

Perry, Michelle. January 2006 (has links)
In recent times a need has developed within NCT for a more accurate prediction of pulpwood available from its members for supply to strategic markets. Present systems indicate the volume of timber per member per farm, however this volume has been found not to be an accurate prediction of what will actually reach the mill at the end of the day as many factors come into play and influence the volume that reaches the mill. The questions arise: which factors influence the availability of marketable Eucalyptus pulpwood timber, and to what extent do the different factors play a role? It was with this problem in mind that a comprehensive survey was undertaken to evaluate a number of factors identified and to try and determine their impact on the volume of Eucalyptus pulpwood supplied. / Thesis (M.B.A.)-University of KwaZulu-Natal, Pietermaritzburg, 2006.
914

The marginalisation of an orphan species : examining bamboo's fit within international forestry institutions

Buckingham, Kathleen January 2013 (has links)
This thesis presents an examination of the interplay between bamboo and institutions of resource management in China, India and internationally, highlighting the need for greater diversity and scope of Western dominated forestry institutions and associated mechanisms. Firstly, the thesis aims to explore the conceptual understanding of forests and the exclusion of bamboo from this construction. The key reason this question is important is that it changes the 'technological zones‘ of forestry. Growing resource scarcity has meant that bamboo is now an increasingly important input in the global forest products marketplace. Secondly, the thesis aims to examine how governance mechanisms and actors respond to the inclusion of this new input. The thesis adopts the 'paper route'; the first paper traces the socio-historical reasons why bamboo‘s potential is yet to be realised, particularly within international policy. It considers the challenges of forestry being predominantly conceptualised as treed lands and the implications for the limited efficacy of sustainable forestry, carbon and trade instruments when applied to bamboo. The second paper acts as an introduction to Western produced forest certification devices, focusing on their transformation within forestry institutions and perceived legitimacy within China. The third paper focuses on a case study of bamboo certification in India. The final paper analyses the controversy regarding the efficacy of forest certification for bamboo globally. The thesis aims to explore these topics through three lines of theory. First, it contributes to institutional framing theory by examining where the idea of a 'forest' originated from and the consequences this has had for the rise of bamboo as a 'timber' product. Second, the thesis aims to further legitimacy theory in two key ways, by examining how the Chinese government accommodates and facilitates the differing needs of both international and domestic markets, whilst ultimately assuming a legitimate form of (institutionalised) domestic governance, and how the perceived input (procedure) and output (efficacy) legitimacy influence the potential success of current and future forest certification for bamboo. Third, the thesis seeks to provide a dynamic analysis of the role of certification through the lens of performativity, which uncovers how certification can create different realities for different actors. This thesis is timely and important for a number of reasons. Firstly, China is gaining more prominence on the world stage, both as an economic and political power. With increased pressure on forestry resources, the forestry administration is determined to upscale sustainable forest management. This requires adhering to global notions of sustainability thorough market mechanisms and ensuring a degree of autonomy of forest management through localising processes. Secondly, China recently received Forest Stewardship Council (FSC) bamboo certification for some of the most intensively managed areas in the country. This has increased controversy amongst experts regarding the efficacy of the mechanism to truly bring about sustainable bamboo management. Thirdly, on a more global scale, one of the crucial issues with up-scaling bamboo management is the fact that there are over 1,200 species of bamboo, with three different rooting structures: monopodial (diffuse) sympodial (clumping), and amphodial (mixed) – which have distinct policy and management needs. Focusing purely on the large-scale, intensively managed, monopodial or treelike' stands in China would ignore the vast areas of small-scale, sympodial bamboo homesteads with issues regarding flowering and propagation of sterile species. Bamboo plantations in Africa, Latin America, and India are being developed, which require enabling policy and management mechanisms. With a global industry estimated at US$10bn, the implications of an inclusive and enabling frame for bamboo management could have wide ranging impacts for both natural resource management and livelihood development.
915

Compensação da reserva florestal legal como instrumento da gestão integrada floresta-água: análise jurídica / Compensation paid by the Legal Forestry Reserve as an instrument to promulgate integrated forest/water management: a legal analysis

Edison Fernando Pompermayer 28 June 2006 (has links)
O presente estudo propôs analisar a aplicabilidade do Código Florestal, devido à obrigatoriedade da recomposição da Reserva Florestal Legal, tendo como possibilidade de recomposição a compensação da Reserva Florestal Legal em outra propriedade desde que na mesma microbacia, e no máximo na mesma Unidade de Gerenciamento de Recursos Hídricos. O objetivo geral do estudo foi ampliar o debate em torno da Reserva Florestal Legal e da sua compensação, por meio da análise de alguns conceitos considerados importantes para a gestão integrada floresta-água na propriedade rural. Tendo ainda como objetivos específicos: analisar as modificações ocorridas no Código Florestal Brasileiro no que diz respeito à Reserva Florestal Legal; identificar as vantagens técnicas ambientais da compensação; caracterizar os proprietários rurais de uma microbacia sobre a disposição em compensar a Reserva Florestal Legal; averiguar a necessidade de implantação de práticas educacionais e de fornecimento de informações legais voltadas ao proprietário rural, de forma a contribuir com a conservação da floresta e da água e colaborar para a regulamentação da compensação da Reserva Florestal Legal entre propriedades. Foi aplicado um questionário aos responsáveis por doze propriedades rurais localizadas no Município de Analândia, sendo 6 das propriedades localizadas na microbacia área de estudo, e seis delas localizadas em áreas adjacentes a esta microbacia, ambas pertencentes à subbacia Alto do Corumbataí. A microbacia de estudo foi escolhida por estar inserida na Bacia do Rio Corumbataí e ser uma área prioritária para a recuperação e a conservação florestal, além de ser uma das áreas próximas às cabeceiras de drenagem. Deve-se ressaltar sua importância na produção de água em quantidade e qualidade. As informações levantadas permitem concluir que o Código Florestal sofreu 67 alterações por meio de Medida Provisória, e, no entanto, ainda não existe regulamentação quanto à recomposição da Reserva Florestal Legal através da compensação. A possibilidade de se recompor a Reserva Florestal Legal por meio da compensação, é um instrumento muito importante para a gestão floresta-água. O desconhecimento da legislação e o desinteresse por parte dos proprietários rurais demonstram a necessidade de implantação de práticas educacionais, bem como a necessidade de se criar incentivos para a manutenção da cobertura florestal nas propriedades rurais. / The propose of this study was to analyze how The Code of Forestry is to be applied, in light of the compulsory requirement to restructure the Legal Forestry Reserve, one restructuring option being the payment of compensation by the Legal Forestry Reserve in the form of another property located in the same water basin, or at most in the same Hydro Resources Unit. The study had as its general objective the widening of discussion around the topic of the Legal Forestry Reserve and compensation by way of analysis of those ideas deemed essential for successful integrated Forestry/Water management of properties in rural areas. The study has the following specific objectives: analyzing the changes made to the Brazilian Forestry Code with regard to what it says about the Legal Forestry Reserve; identifying the technical and environmental advantages of the compensation program; making the owners of rural properties in the water basins aware of the Legal Forestry Reserve’s willingness to provide compensation; ascertaining the need to institute educational guidelines and a source of legal information that relate to owners of rural property so as to help promote the conservation of forest and water resources and collaboration with regard to regulating compensation paid by the Legal Forestry Reserve amongst the various properties. A questionnaire was submitted to twelve individuals responsible for rural properties located in the Municipality of Analândia. Six of these properties were located in the water basin under study, and six of them located out of this water basin. All the twelve properties belong to the sub-basin of Alto do Corumbataí, sandwiched in the River Corumbataí basin and being deemed a priority area regarding restoration and preservation of forest vegetation; as well as being one of the areas nearest to the drainage headwaters, an area whose importance is destined to revive through the production of good quality water in quantity. The information obtained led us to conclude that despite 67 (sixty-seven) changes made to the Forestry Code by way of a Provisional Ordinance, there is still, nevertheless, no regulatory framework in place governing the restructuring of the Legal Forestry Reserve through a program of compensation. The potential for restructuring the Legal Forestry Reserve through a compensation program is a way in the field of Forestry/Water management. Ignorance of the legislation in force or lack of interest on the part of owners of rural properties testify to the need to introduce a set of educational guidelines and foster incentives that will encourage the preservation of the current level of forest vegetation in properties located in rural areas.
916

Review of forest plantation funding in South Africa

Motaung, Tsholofelo 04 1900 (has links)
Thesis (MDF)--Stellenbosch University, 2015. / ENGLISH ABSTRACT: Developing sustainable forests has been acknowledged to be important, not just as a way of averting deforestation and land degradation, but as another opportunity to contribute positively towards rural development, especially in sub-Saharan Africa. Forestry development has, however, not received the recognition it deserves. Its importance to economic development and its potential contribution have not been explicitly communicated and thus remain undervalued. The long rotations required for trees to mature, plus the associated risk from fires, pests and diseases has affected the sector’s ability to attract investment. In South Africa this reluctance is evident in both the public and private sectors alike. Access to finance for forestry remains a challenge, which negatively affects the supply to the processing part of the value chain. The objective of the study is to review current forestry funding mechanisms in South Africa, specifically plantations and their contributions to rural economic development. Using secondary data, the study reviewed the current sector funding from the state, development funding institutions and the private sector. The study also looked at alternative sources used in other countries and how they can be customised to the South African economy. In this study it was found that there are gaps between policies aimed at the development of the sector on the one hand, and the resources allocated to the sector on the other hand. The available schemes fail to support the sector policies’ objectives. These discrepancies can be attributed to the poor design of the current offering, the development of which failed to fully consider the dynamics of the sector. The conclusion of the study was that the government needs to play more of a leading role in developing the sector, especially with the small-scale growers who cannot be catered for by both commercial and development banks. The sector also stands to benefit significantly from better collaboration between the public and private sectors. Policies that create an enabling environment would also encourage the private sector to invest more. The study also suggested that, in view of the dynamics of the sector and its contribution to climate change risk mitigation, there is room to tap innovative funding such as that offered by environmental funding.
917

Comparative evaluation of Celtis africana in Lesotho with that in KwaZulu-Natal, South Africa.

Ts'ehlana, Moses Ts'eliso. January 2005 (has links)
Research was conducted in three study sites in Lesotho, and the fourth, which was used on comparative basis, was in KwaZulu-Natal, South Africa. The study was suitable for Lesotho as it is a small country with very limited natural resources. Lesotho's weak economy, exacerbated by the increasing population, needs concerted efforts to redress its socio-economic problems. This study is one of such efforts to explore the potentials of the indigenous forests with the aim of addressing wood demands. Celtis africana is one of the species with a proven record in Lesotho to have been a well adapted, resourceful timber tree in the past. Over-exploitation has degenerated it to its brink of extinction. It is against this background that this research was conducted with the aim of restoring Celtis africana to its original status in Lesotho. The results revealed that due to climatic conditions, seeds from Kwazulu-Natal are heavier than those from localities in Lesotho. However, wood densities from study sites in Lesotho are higher than those of KwaZulu-Natal. Pre-treatment method of manual scarification showed the best outcomes in terms of germination percent and vigour while the control was the last. The diverse nature of Celtis africana allows it to survive and prosper in a wide and varying range of habitats. Its pliable and adaptive characters are manifested by its ability to adapt in novel environments. Under ideal warm and moist conditions Celtis africana keeps its foliage all the year round, but in dry or abnormally cold years it becomes a deciduous tree. Though it is distributed in a variety of habitats, Celtis africana prefers moist habitats. It also demonstrates greater "affinities" for the carbonates in the soils, in particular, calcium carbonate (CaC03) and dolomite (CaMgC03). More research and determined reforestation programmes are required in order to improve the status of Celtis africana in Lesotho. Its natural existence in Lesotho can curtail expense of provenance identification. Both extension strategies and silvicultural operations, which can assist in tree improvement, should be adopted. Social benefits which, are rendered by Celtis africana in South Africa, can be emulated and adopted in Lesotho. Other than being an admired and valuable recreational tree (planted in parks and in the homesteads), it is a protected tree in South Africa. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2005.
918

Inventorying humans in the forest : a study of coastal forest owners'understanding of the political shift in focus within Swedish forestry / Att inventera människor i skogen : en studie av hur kustskogsägare ser på det politiska fokusskiftet inom svenskt skogsbruk

Strandberg, Tora January 2003 (has links)
<p>Forestry operations in Sweden can be traced a long way back in history. The overall emphasis has traditionally been on the forests’ economic or profitable role, even though they are also of great ecological and social interests. Nevertheless, the focus has shifted during the last decade due to the impact of sustainable development. A new Forestry Act has now provided the Swedish forestry with a new policy which is guided by two equally-weighted objectives; production and environmental concern. The European Union (EU) has also adapted to the direction of sustainable development. It places particular interest in the creation of sustainable coastal areas within the union. </p><p>The aim of the Bachelor of Science thesis was to investigate how Swedish coastal forest owners define their role in the creation of sustainable coastal forests. The study is built on interviews which were conducted with seven forest owners, all of whom have properties in the coastal zones of Östergötland and Kalmar. These two counties are situated in the south-eastern part of Sweden. </p><p>The study raises three different issues. The first is the manner in which the informants shape their knowledge of the existing forestry legislation, based on their identities and responsibilities. The second concerns the preconditions with which they are faced when managing their coastal forest properties and whether or not they see the new legislation as a shift in focus. The final issue highlights the importance of local knowledge and looks at the participation of the informants in the development of new regulations. </p><p>The following conclusions are drawn from the investigations. Many owners of forest properties do not identify themselves as forest owners; it is therefore important to be aware of this distinction which is made between being a forest owner and being the holder of a forest property. The coastal forest owners who were interviewed run their forests according to their individual situations. Because of this they do not appear to be part of any shift of focus within the Swedish forestry. As a result, they may not have a defined role in its development. This role would probably be clearer or greater if their local knowledge were more explicitly valuated.</p>
919

Estimating volume and value on standing timber in hybrid poplar plantations using terrestrial laser scanning : a case study

Barnett, Jennifer S. 25 May 2012 (has links)
Terrestrial laser scanning (TLS) may provide a way to increase timber value recovery by replacing manual timber cruising with a simple-to-use, cost-effective alternative. TLS has been studied in several trials worldwide. Past studies have not compared TLS based estimates with mill estimates of stem value and volume. Three differently stocked stands of hybrid poplar were selected for diameter, stem sinuosity and height measurement using manual cruising and TLS. Selected trees were harvested and transported to a mill where they were scanned and then processed into lumber and chips. Data gathered using both manual and TLS methods were used to obtain stem volume and value estimates to compare with mill estimates. Results indicated that TLS diameter measurements were more accurately matched to mill and manual measurements up to about 7.5 meters on the stem than above 7.5 meters on the stem in all three stands. Stem curvature comparisons indicated that the variation between TLS and mill centerline measurements was similar to the variation between repeat mill scan measurements of the same stems. Using TLS as a pre-harvest inventory tool showed that additional revenue could be obtained from the reallocation of saw-log and chip log volume to veneer logs of various sizes in all three stands. It was also shown that the sampling error required to estimate stand value was greater than was required to estimate stand volume within the same error limits. / Graduation date: 2012
920

Oregon's forest sector innovation system : an investigation towards advanced performance

Orozco, Nadine C. 08 June 2012 (has links)
Innovation is a critical component for long term success of an organization. However, being innovative is rarely easy. Successful implementation of any innovation (product, process, or business system) can heavily rely on the functionality of the current innovation system in a given industry. An innovation system is composed of policies, companies, individuals, and other major actors that may play a role in the development and diffusion of an innovation into the marketplace. Historically, the forest products industry has faced numerous challenges in remaining innovative: outside forces provide few incentives or favorable policies while poor communication among industry sectors impedes creative growth from within. An in-depth analysis of why the forest sector innovation system is not performing at a higher level is therefore essential. This thesis outlines results gathered from personal interviews with industry professionals and an industry survey on key policies, incentives, organizations, and the condition of Oregon's forest sector innovation system in general. Ultimately, the research provides recommendations for an improved forest sector innovation system that can, in turn, increase competitiveness and synergies among forest sector companies, higher education, and other businesses in Oregon. / Graduation date: 2013

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