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Дисертації з теми "Natural forest product"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Auch, Eckhard, and Abtew Asmamaw Alemu. "Participative Innovation Platforms (PIP): Guideline for analysis and development of commercial forest product value chains in Sudan and Ethiopia." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-203964.

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Анотація:

This working paper was developed with the intention to provide a guideline for participatory analysis and development of commercial forest product value chains, in the context of developing countries. Basically, it was designed for identification and implementation of interventions or upgrading measures for the improvement of commercial forest product (Bamboo, Natural gum and resin, and Gum Arabic) value chains in Ethiopia and Sudan within the framework of a collaborative research project - CHAnces IN Sustainability: promoting natural resource based product chains in East Africa (CHAINS). The

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2

Ekane, Bellewang Nelson. "Socio-economic impact of Prunus africana management in the Mount Cameroon region : A case study of the Bokwoango community." Thesis, KTH, Urban Planning and Environment, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3968.

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<p>In most developing countries, forest resources are a major source of livelihood for forest dwellers. Forests provide fuel wood, farm products, meat, timber and plants of high medicinal value, including Prunus africana. The collection of medicinal plants is also an important source of cash income for some forest communities, and widely relied on to cure illnesses (Poffenberger, 1993). Because of this, the poor forest dwellers in particular are forced to exert pressure on their surrounding environment to make ends meet. Indiscriminate exploitation of forest resources has cost some forest dwel

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3

Vermeulen, Wessel Johannes. "The sustainable harvesting of non-timber forest products from natural forests in the southern Cape, South Africa : development of harvest systems and management prescriptions." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/3973.

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Thesis (PhD (Conservation Ecology and Entomology))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: There is a growing appreciation of the importance of non-timber forest products (NTFPs) and the role they play in the socio-economic wellbeing of rural communities and other stakeholders. Harvest systems to ensure sustainable harvesting are largely still lacking and overutilisation is of growing concern worldwide. In this study the science needed to underwrite management for sustainable use of NTFPs was explored. This was done using case studies of three different products harvested

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4

Munthali, Chimuleke Rowland Yagontha. "Use, physiology and genetic characterisation of selected natural populations of Adansonia Digitata in Malawi." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/20237.

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5

Cattle, Christopher. "Grown furniture : a move towards design for sustainability." Thesis, Bucks New University, 2002. http://bucks.collections.crest.ac.uk/9676/.

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This thesis deals with the proposal that environmentally benign items of free standing furniture may be produced by the use of such well established techniques as training and grafting natural tree growth to shape. The project has been driven by the growing environmental concerns of which mankind has become aware in the late twentieth century, and which are starting to exert such a powerful influence in the twenty first. A broad history of man's use and control of natural tree growth, ranging geographically from Europe to Australia, and in size from hand held agricultural picks to eighteenth c

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6

Attah, Alhassan. "A model for forest and product certification in Ghana : the perception and attitudes of forest enterprises in Ghana." Thesis, Bucks New University, 2011. http://bucks.collections.crest.ac.uk/10085/.

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Forest and product certification was initially promoted as a means of enhancing sustainable management of forests in the tropics. However after almost two decades, there is still very little evidence of certified timber products originating from tropical countries. A number of approaches have been suggested to enhance the growth of forest certification in the tropics. These approaches such as that of the Forest Stewardship Council, Global Forest Trade Network of the World Wide Fund for Nature (WWF), Sustainable Forest Initiative and various private sector initiatives have all failed to facilit

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7

Steele, Melita Zoë. "Natural resource harvesting and disturbance in communal lands: assessing the roles of local ecological knowledge, dependency and market access." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1004604.

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A great deal of research has demonstrated that Non-Timber Forest Products (NTFPs) play a crucial role in the livelihoods of the rural poor, and are particularly important to the most marginalised people throughout the developing world. However, these livelihood benefits are not without cost to the natural resource base that rural communities depend so heavily upon. The continued dependence on NTFPs as a major livelihood source must be contingent upon the minimisation of the level of disturbance created through this dependency. This study assesses the level of disturbance created through natura

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8

Thibeault, Dominic. "Évaluation de l'impact de modifications chimiques sur le potentiel anticancéreux de produits naturels de la forêt boréale québécoise /." Thèse, Chicoutimi : Montréal : Université du Québec à Chicoutimi, Université du Québec à Montréal, 2008. http://theses.uqac.ca.

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Thèse (D.Sc.Env.) -- Université du Québec à Montréal, programme offert par extension à l'Université du Québec à Chicoutimi, 2008.<br>La p. de t. porte en outre: Thèse présentée à l'Université du Québec à Chicoutimi et l'Université du Québec à Montréal comme exigence partielle du doctorat en sciences de l'environnement. CaQQUQ Comprend des réf. bibliogr. (f. 176-177). Publié aussi en version électronique. CaQQUQ

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9

Cunningham, Peter Low. "Prospects for sustained harvesting of mopane (Colophospermum mopane) on the Venetia Limpopo Nature Reserve and its implications for browsing ungulates." Thesis, Stellenbosch : Stellenbosch University, 1996. http://hdl.handle.net/10019.1/55219.

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Thesis (MSc) -- Stellenbosch University, 1996.<br>ENGLISH ABSTRACT:Principle objectives of this study were to investigate the ecological feasibility of sustained utilization of mopane, using Venetia Limpopo Nature Reserve as a pilot study area. The study was limited to three different mopane dominated vegetation types on the reserve with most research being conducted in C.mopane woodland. Results can be summarized as follows: 1. Colophospermum mopane is ubiquitous on VLNR. 2. C.mopane woodland has the deusest mopane growth of the three vegetation types and highest densities are found on

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10

Bekele, Tsegaye, Eckhard Auch, Wassie Abeje Eshete, et al. "Policy Brief for realizing green/bio economy with high value Non-Timber Forest Products commercialization in Ethiopia and Sudan." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-218721.

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Анотація:

This policy brief deals with the research findings of the collaborative research project “CHAnces IN Sustainability – promoting natural resource based product chains in East Africa” (CHAINS) funded by the Federal Ministry of Education and Research, and the DLR Project Management Agency. It presents the studies investigating the value chains of highland BAMBOO and NATURAL GUM AND RESIN products in Ethiopia as well as GUM ARABIC value chains in Sudan. These products possess high eco¬nomic, social and environ¬mental benefits and untapped potentials. However, their pro-duction and commercializatio

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11

Eshete, Wassie Abeje, Wubalem Tadesse, Teshale Woldeamanuel, et al. "Policy Brief for realizing green/bio economy with high value Non-Timber Forest Products commercialization in Ethiopia and Sudan." Technische Universität Dresden, 2017. https://tud.qucosa.de/id/qucosa%3A30151.

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Анотація:

This policy brief deals with the research findings of the collaborative research project “CHAnces IN Sustainability – promoting natural resource based product chains in East Africa” (CHAINS) funded by the Federal Ministry of Education and Research, and the DLR Project Management Agency. It presents the studies investigating the value chains of highland BAMBOO and NATURAL GUM AND RESIN products in Ethiopia as well as GUM ARABIC value chains in Sudan. These products possess high eco¬nomic, social and environ¬mental benefits and untapped potentials. However, their pro-duction and commercializatio

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12

Sampaio, Maurício Bonesso 1981. "Ecologia,manejo e conservação do buriti (Mauritia flexuosa; Arecaceae) nos brejos do Brasil Central." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315018.

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Orientador: Flávio Antonio Maes dos Santos<br>Tese (doutorado) - Universidade EStadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-20T22:28:27Z (GMT). No. of bitstreams: 1 Sampaio_MauricioBonesso_D.pdf: 3416891 bytes, checksum: c71b6c5c4b8c2cd948a940d49149b307 (MD5) Previous issue date: 2012<br>Resumo: Florestas geram subsistência e renda para comunidades rurais, por meio do extrativismo de produtos florestais não madeireiros (PFNM), agricultura de coivara, criação de gado e porcos, etc. Estas atividades podem ser alternativas econômicas de menor impacto do que

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13

Benevides, Paulo José Coelho. "Estudo fitoquímico guiado por bioensaios em algumas espécies da Mata Atlântica e Floresta Amazônica." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-25102018-161642/.

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Neste trabalho o estudo fitoquímico foi guiado por dois bioensaios visando o fracionamento e o isolamento de substâncias com atividades antitumoral e antifúngica potenciais. Os bioensaios utilizados são específicos e foram realizados com três cepas modificadas da levedura Saccharomyces cerevisiae e com duas espécies de fungos: Cladosporium cladosporioides e Cladosporium sphaerospermum. O fracionamento guiado por estes bioensaios foi desenvolvido com duas espécies da Mata Atlântica: Petiveria alliacea L. e Bathysa meridionalis L.; e uma espécie da Floresta Amazônica: Psichotria spectabillis S.

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14

Faria, Renata Barros Marcondes de. "Povos indígenas na Amazônia e o mercado de produtos florestais não-madeireiros: efeitos no uso de recursos naturais pelos Araweté." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/90/90131/tde-25082007-180740/.

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Este estudo tem como objetivo verificar quais são os efeitos indiretos que a participação de povos indígenas no mercado de produtos florestais não madeireiros (PFNMs) produz no uso de recursos naturais. As Terras Indígenas são estratégicas para a conservação das florestas tropicais, embora este papel possa ser alterado pelo crescente envolvimento dos povos indígenas com o mercado. Estimulado como forma de promover o desenvolvimento econômico dessas sociedades aliado à conservação ambiental, o mercado de PFNMs pode também produzir efeitos negativos no meio ambiente, tanto diretos - nos recursos

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15

Brites, Alice Dantas. "Why do people participate in monitoring the effects of natural resource harvest and trade? Assessing multiple drivers of participation." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/106/106132/tde-24072015-100431/.

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Participatory monitoring of ecological and socioeconomic effects of harvesting and trading natural resources is advocated as a promoter of natural resource conservation and local communitiy empowerment. Nevertheless, the strategys success depends upon peoples willingness and availability to participate. Yet little is known about the factors that drive local communities to volunteer in participatory monitoring, particularly in relation to small-scale communities living in remote locations. This thesis investigated whether a number of candidate factors were able to predict peoples participation

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16

Mtati, Nosiseko. "The relative contribution of non-timber forest products, agriculture and off-farm sources of income to rural households in Koloni and Guquka, Eastern Cape." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1018193.

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[Partial abstract]: This study was carried out to determine the contribution of non-timber forest products (NTFPs) to household total income, other livelihood sectors were also examined simultaneously. The contribution of agriculture involved livestock and crop production. Wages and government grants were other livelihood sectors that were looked into. This study was important in determining the change in livelihood strategies in the last decade and to quantify the NTFPs used at the two sites. It was carried out in Guquka and Koloni, both part of the central Eastern Cape. Information on direct

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17

Ajalla, Ortiz Omega. "La necesidad de legislar la cantidad de producto forestal maderable transportada y el delito de tráfico ilegal de productos forestales maderables." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2018. http://hdl.handle.net/20.500.12404/13744.

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Es sabido que nuestro territorio nacional está cubierto por bosques, la cual se ubica en costa, sierra y selva. Sin embargo, los bosques de nuestro país, por el contrario, cada año se destruyen en cantidades considerables, debido a que la misma ocurre de manera ilegal. Sin embargo, pese a que en nuestra legislación contamos con normas penales y administrativas que están diseñados para reprimir las conductas que estén referidos al tráfico ilegal de productos forestales maderables, previstas en el artículo 310-A del Código Penal y artículo 207.3.i) del Reglamento para la Gestión Forestal. Pues,

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18

Forney, Andra. "Patterns of harvest: investigating the social-ecological relationship between huckleberry pickers and black huckleberry (Vaccinium membranaceum Dougl. ex Torr.; Ericaceae) in southeastern British Columbia." Thesis, 2016. http://hdl.handle.net/1828/7286.

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For centuries the wellbeing of rural communities has depended on the health and resilience of local food systems. Over the last century many factors have contributed to declines in the availability and use of important traditional foods. In this thesis I have used black huckleberry (Vaccinium membranaceum) as a case study through which I explore the varying roles humans play in influencing the health of a wild forest food. Black huckleberry is one of the most sought after wild berries in British Columbia (BC). Over the past few decades huckleberry pickers and forest managers have expressed con

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19

Dhaniarto, Aloysius Yanis. "The relation between the host country and transnational corporations in international trade of natural resources a study of forest industry in Indonesia /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/38236999.html.

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20

La, Thi Tham. "A transition towards higher value uses of natural-resource based products." 2021. https://tud.qucosa.de/id/qucosa%3A75008.

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Forestry and the wood-based sector provide increasing contributions to the national and rural economy development. Tree plantations serve as a business opportunity to secure the livelihood of thousands of small-scale timber producer households in several tropical countries. Given that forest land and the timber production it supports is limited, sustainable management of forest-based resources including timber is required. By integrating the value chain and livelihood analysis framework, this study investigates the value chains and impacts on rural livelihoods of commercial Acacia hybrid timbe

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21

Staben, GW. "Development of remote sensing products to investigate the impact of tropical cyclones on natural vegetation communities in the wet-dry tropics of northern Australia." Thesis, 2021. https://eprints.utas.edu.au/37967/1/Staben_whole_thesis.pdf.

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Understanding ecological changes in native vegetation communities often requires information over long time periods. The influence of fire on woody vegetation structure in the Northern Territory has been well studied, however limited work has been undertaken to understand the impact of tropical cyclones, which can dramatically alter vegetation structure. Woody vegetation structure has been identified as an important metric for monitoring trends in biomass, primary productivity and biodiversity. Both cover and height have been identified as important structural attributes required for ecologica

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22

Mutenje, Munyaradzi Junia. "Rural livelihoods in south-eastern Zimbabwe : the impact of HIV/AIDS on the use and management of non-timber forestry products." Thesis, 2010. http://hdl.handle.net/10413/8542.

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Non-timber forest products (NTFPs) constitute an important source of livelihood for most poor rural households and communities in Zimbabwe. NTFPs also serve as a vital livelihood safety net in times of hardship. An important feature of this dependence is that almost all NTFPs are deemed to have ‘public good’ characteristics, with no exclusive property rights. Consequently, extraction is often intense and exhaustive because of lack of alternative income sources, unreliable productivity and weak enforcement of institutional arrangements governing NTFPs use. In recent years, with HIV/AIDS rampant

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23

"Evaluating the Social and Ecological Drivers of Invasive Plant Species Abundance in Sub-tropical Community Forests of Nepal." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.62806.

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abstract: Invasive plants harm the ecological properties of natural systems, human health, and local economies. However, the negative impacts of invasive species are not always immediately visible and may be disregarded by local communities if social benefits of control efforts are not clear. In this dissertation, I use a mixed-methods approach to investigate the drivers of invasive plant distribution, potential financially feasible management techniques to control invasion, and community forest user perceptions of those techniques. In this work, I aim to incorporate the diverse pe

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24

Mohamed, Mahmoud Eid Hoda. "Antidiabetic activity of Vaccinium vitis-idaea, a medicinal plant from the traditional pharmacopeia of the James Bay Cree." Thèse, 2010. http://hdl.handle.net/1866/8327.

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L’incidence du diabète chez les premières nations du Canada est plus de trois fois celle du reste du pays, dû, en partie, aux traitements culturellement inappropriés. Notre projet vise à traiter le diabète chez ces populations à partir de leur pharmacopée de médicine traditionnelle afin d’améliorer l’acceptation des traitements. En utilisant une approche ethnobotanique, notre équipe a identifié 17 plantes médicinales utilisées pour traiter des symptômes du diabète par les Cris d'Eeyou Istchee (Baie James, Québec). Parmi eux, l'extrait éthanolique de baies de Vaccinium vitis-idaea a montré un e

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25

El, Hamaoui El Nachar Abir. "Évaluation de l’effet antidiabétique de plantes médicinales de la forêt boréale et identification des principes actifs de deux espèces prometteuses." Thèse, 2014. http://hdl.handle.net/1866/12621.

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Анотація:

Le diabète de type 2 est une maladie chronique dont l’incidence est en augmentation continuelle. Le risque de développer le diabète de type 2 chez les populations autochtones du Canada est de trois à cinq fois plus élevé que le reste de la population canadienne. La forêt boréale comporte plusieurs plantes médicinales ayant un potentiel pour le traitement ou la prévention du diabète. Certaines de ces plantes font partie de la médecine traditionnelle et alternative Crie. Des enquêtes ethnobotaniques ont amené notre équipe de recherche à identifier 17 extraits de plantes médicinales utilisé

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26

Euring, Markus. "Einsatz von Mediatoren bei der enzymatischen Aktivierung der fasereigenen Bindekräfte zur Herstellung von enzymgebundenen, bindemittelfreien Holzwerkstoffen." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-B111-9.

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