• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 139
  • 119
  • 7
  • 4
  • 3
  • 3
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 304
  • 304
  • 132
  • 111
  • 38
  • 32
  • 31
  • 30
  • 29
  • 29
  • 29
  • 28
  • 27
  • 27
  • 27
  • 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.
241

[en] REDUCING THREATS TO THE FORESTS OF THE STATE OF ACRE: A MONITORING PROPOSAL FOR THE ENVIRONMENTAL REGULARIZATION PROGRAM (PRA) OF THE RURAL ENVIRONMENTAL CADASTER (CAR) / [pt] REDUZINDO AS AMEAÇAS ÀS FLORESTAS DO ESTADO DO ACRE: UMA PROPOSTA DE MONITORAMENTO AO PROGRAMA DE REGULARIZAÇÃO AMBIENTAL (PRA) DO CADASTRO AMBIENTAL RURAL (CAR)

PEDRO IGLESIAS BESSA SEIBEL 21 May 2024 (has links)
[pt] A conservação de florestas propicia, através de seus serviços ecológicos, uma série de benefícios ao ambiente. As melhorias no ambiente incluem a manutenção da biodiversidade, a conservação dos recursos hídricos e a redução de carbono na atmosfera. Apesar dos benefícios mencionados, as áreas de floresta são submetidas à incêndios florestais, desmatamentos e outras degradações que desconsideram sua importância para o equilíbrio geoecológico e produtivo. Com objetivo de conservar o ambiente e promover o desenvolvimento sustentável, países estão implementando modernos sistemas de administração territorial, que visam realizar a regularização do território, em seus diversos aspectos (fundiário, ambiental, fiscal, entre outros). Como exemplo, cita-se o programa Cadastro Ambiental Rural (CAR) e o Programa de Regularização Ambiental (PRA), sistema de administração de terras que tem o objetivo de implementar as restrições ao uso do solo, nos imóveis rurais brasileiros. Assim, o estudo busca analisar em que medida o PRA, do CAR, está contribuindo para a redução dos desmatamentos, focos de queimada, alertas de degradação e embargos ambientais federais, nos imóveis rurais brasileiros. Para desenvolver o estudo, foi utilizado como recorte espacial o estado do Acre, no Brasil. Para tal, são realizadas análises espaciais e estatísticas visando avaliar a tendência e cenário futuro das variáveis supracitadas. Os resultados obtidos indicam que a adesão ao PRA contribui para a redução dos desmatamentos, focos de queimada e alertas de degradação ambiental. Nos embargos ambientais, foi identificada tendência similar em imóveis com e sem adesão ao PRA e análise preditiva maior, em imóveis que aderiram ao PRA. Também são realizadas entrevistas semiestruturadas abordando os impactos do PRA e do CAR nas condições ambientais e socioeconômicas dos imóveis rurais brasileiros e desafios e oportunidades para a regularização ambiental no Brasil. Por último, o estudo propõe um sistema de monitoramento que analisa as contribuições do PRA do CAR na redução dos desmatamentos, focos de queimada, alertas de degradação ambiental e embargos ambientais, nos imóveis rurais do Acre. O sistema proposto promove a interoperabilidade dos dados espaciais do CAR, com as bases de dados do Instituto Nacional de Pesquisas Espaciais (INPE) e do Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA). / [en] The conservation of forests provides a range of benefits to the environment through its ecological services. Environmental improvements include the maintenance of biodiversity, the conservation of water resources, and the reduction of carbon in the atmosphere. Despite the mentioned benefits, forest areas are subjected to wildfires, deforestation, and other degradations that disregard their importance for the geoecological and productive balance. With the aim of conserving the environment and promoting sustainable development, countries are implementing modern land administration systems, which aim to regularize the territory in its various aspects (tenure, environmental, fiscal, among others). As an example, the Rural Environmental Cadaster (CAR) program and the Environmental Regularization Program (PRA), a land administration system which aims to implement the restrictions on land use in Brazilian rural properties, are cited. Thus, the study seeks to analyze the extent to which the PRA, from the CAR, is contributing to the reduction of deforestation, fire outbreaks, alerts of degradation, and federal environmental embargoes on Brazilian rural properties. To develop the research, the state of Acre, in Brazil, was used as a case study. For this purpose, spatial and statistical analyses are carried out to evaluate the trend and future scenario of the aforementioned variables. The results obtained indicate that adherence to the PRA contributes to the reduction of deforestation, fire outbreaks, and alerts of environmental degradation. In environmental embargoes, a similar trend was observed in properties with and without adherence to the PRA, and a greater predictive analysis in properties that adhered to the PRA. Semi-structured interviews are also conducted to address the impacts of the PRA and CAR on the environmental and socioeconomic conditions of Brazilian rural properties and the challenges and opportunities for environmental regularization in Brazil. Lastly, the study proposes a monitoring system that analyzes the contributions of the PRA and CAR in reducing deforestation, fire outbreaks, environmental degradation alerts, and environmental embargoes on rural properties in Acre. The proposed system promotes the interoperability of the CAR s spatial data with the databases of the Instituto Nacional de Pesquisas Espaciais (INPE) and the Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA).
242

Rural energy systems and the rural development process: a case study from Limpopo Province

Ntobeng, Ntwampe Albert 30 April 2007 (has links)
The rapid and sustained development of the rural regions of South Africa continues to pose an extraordinary challenge to the development community of the country. Policy makers continue to be overwhelmed by the lack of development in the rural areas in spite of the various efforts made to develop them. A review of the publications and development plans of the study region indicates that the planners have for long been pre-occupied with taking limited perspectives of the development planning problems. Development plans have been conceived and implemented in terms of individual sectors instead of looking at their relations with other sectors and regions. This study seeks to make a contribution to the solution of the development problems of the rural areas of the former homeland regions by demonstrating how an integrated approach to the research process and to development planning could make a difference to the lives of the rural communities. This theme is illustrated with reference to the rural energy sector and its relations with the broader regional development problems, challenges and plans of the Sekhukhune district municipality of the Limpopo Province. / GEOGRAPHY / MA (GEOGRAPHY)
243

Towards promoting food security amongst poor urban households : the case of Phomolong in Mamelodi

Alusala, Loice Nandako 06 1900 (has links)
Promoting household food security for many poor people globally and more so in Sub-Saharan Africa continues to be a challenge today. Ever rising poverty levels, an influx in the prevalence of the HIV/ AIDS pandemic, reduced rainfall accompanied by changing climatic patterns, environmental bankruptcy, the complexities associated with urbanization, globalisation as well as technology shift in the agricultural sector and capitalistic market economies all play a role in the food security debate. This research has highlighted some of the factors that influence the food economy and related these to the household food security of poor informal settlement dwellers. Achieving household food security for poor urban households requires an integrated approach in terms of poverty eradication as well as deliberate efforts with regards to food production and distribution within a framework of ecological integrity, with an aim of empowering the poor and ensuring that their household food security is guaranteed. / Development Studies / Thesis (M.A. (Development Studies))
244

An exploration of the impacts of socio-economic activities on the loss of biodiversity in the Maseru and Berea districts of Lesotho

Sekamane, Thabang 01 1900 (has links)
Text in English / Biodiversity is a fundamental characteristic of life on Earth and encompasses the whole range of variation in living organisms. Lesotho has been subjected to tremendous biodiversity change over the last two centuries, primarily due to socio-economic activities. A number of socio-economic factors have contributed to the loss of biodiversity. However, worldwide experience has shown that, the consequences emanating from loss of biodiversity are sometimes irreversible as some species are threatened by extinction. The study aimed at exploring the impacts of socio-economic activities that result in loss of large game animals, predators and indigenous plants species in Lesotho. To serve this objective, both quantitative and qualitative research methodologies were used to collect data. Quantitative research method was used in pre-post tests whilst qualitative research method was used in interviews and focus group discussions to collect data. The finding and results of the study show that, impacts of human vectors such as immigration, migration, settlement, economic and recreation activities in Lesotho have the impacts to the loss of large game animals, predators and indigenous plants. It is imperative therefore, for Lesotho to find ways to establish more parks and botanic gardens that could offer opportunities for re-introduction of species in Lesotho, thus, adding value to the existing parks. / Environmental Sciences / M. Sc. (Environmental Management)
245

Rural energy systems and the rural development process: a case study from Limpopo Province

Ntobeng, Ntwampe Albert 30 April 2007 (has links)
The rapid and sustained development of the rural regions of South Africa continues to pose an extraordinary challenge to the development community of the country. Policy makers continue to be overwhelmed by the lack of development in the rural areas in spite of the various efforts made to develop them. A review of the publications and development plans of the study region indicates that the planners have for long been pre-occupied with taking limited perspectives of the development planning problems. Development plans have been conceived and implemented in terms of individual sectors instead of looking at their relations with other sectors and regions. This study seeks to make a contribution to the solution of the development problems of the rural areas of the former homeland regions by demonstrating how an integrated approach to the research process and to development planning could make a difference to the lives of the rural communities. This theme is illustrated with reference to the rural energy sector and its relations with the broader regional development problems, challenges and plans of the Sekhukhune district municipality of the Limpopo Province. / GEOGRAPHY / MA (GEOGRAPHY)
246

Towards promoting food security amongst poor urban households : the case of Phomolong in Mamelodi

Alusala, Loice Nandako 06 1900 (has links)
Promoting household food security for many poor people globally and more so in Sub-Saharan Africa continues to be a challenge today. Ever rising poverty levels, an influx in the prevalence of the HIV/ AIDS pandemic, reduced rainfall accompanied by changing climatic patterns, environmental bankruptcy, the complexities associated with urbanization, globalisation as well as technology shift in the agricultural sector and capitalistic market economies all play a role in the food security debate. This research has highlighted some of the factors that influence the food economy and related these to the household food security of poor informal settlement dwellers. Achieving household food security for poor urban households requires an integrated approach in terms of poverty eradication as well as deliberate efforts with regards to food production and distribution within a framework of ecological integrity, with an aim of empowering the poor and ensuring that their household food security is guaranteed. / Development Studies / Thesis (M.A. (Development Studies))
247

An exploration of the impacts of socio-economic activities on the loss of biodiversity in the Maseru and Berea districts of Lesotho

Sekamane, Thabang 01 1900 (has links)
Text in English / Biodiversity is a fundamental characteristic of life on Earth and encompasses the whole range of variation in living organisms. Lesotho has been subjected to tremendous biodiversity change over the last two centuries, primarily due to socio-economic activities. A number of socio-economic factors have contributed to the loss of biodiversity. However, worldwide experience has shown that, the consequences emanating from loss of biodiversity are sometimes irreversible as some species are threatened by extinction. The study aimed at exploring the impacts of socio-economic activities that result in loss of large game animals, predators and indigenous plants species in Lesotho. To serve this objective, both quantitative and qualitative research methodologies were used to collect data. Quantitative research method was used in pre-post tests whilst qualitative research method was used in interviews and focus group discussions to collect data. The finding and results of the study show that, impacts of human vectors such as immigration, migration, settlement, economic and recreation activities in Lesotho have the impacts to the loss of large game animals, predators and indigenous plants. It is imperative therefore, for Lesotho to find ways to establish more parks and botanic gardens that could offer opportunities for re-introduction of species in Lesotho, thus, adding value to the existing parks. / Environmental Sciences / M. Sc. (Environmental Management)
248

Tibetan Buddhism and the environment: A case study of environmental sensitivity among Tibetan environmental professionals in Dharamsala, India

Shearer, Megan Marie 01 January 2005 (has links)
The purpose of this study was to investigate environmental sensitivity among environmental professionals in a culture that is assumed to hold an ecocentric perspective. Nine Tibetan Buddhist environmental professionals were surveyed in this study. Based on an Environmental Sensitivity Profile Insytrument, an environmental sensitivity profile for a Tibetan Buddhist environmental professional was created from the participants demographic and interview data. The most frequently defined vaqriables were environmental destruction/development, education and role models.
249

Filosofies-opvoedkundige perspektief op omgewingsopvoeding met spesiale verwysing na omgewingsgesonde gedrag en volhoubare ontwikkeling / A philosophical-educational perspective on environmental education with specific reference to environmentally sound behaviour and sustainable development

Du Toit, A. S. (Andries Stephanus) 12 1900 (has links)
Die voorbestaan van die mensdom is nou verweef met die toestand waarin die omgewing verkeer. Menslike aktiwiteite het 'n groot impak op die omgewing, terwyl die omgewing weer die mens se lewensgehalte bepaal. Hierdie studie is dan daarop gemik om deur omgewingsopvoeding, die mens te lei tot omgewingsgesonde gedrag met die oog op volhoubare ontwikkeling. Ten einde hierin te slaag, word die verskillende omgewingsprobleme en die redes daarvoor eers uitgeklaar. Daarna word die faktore wat tot omgewingsagteruitgang kan lei, ondersoek. Hieruit blyk duidelik <lat die wereld en die RSA, in die toekoms digter bevolk, meer besoedel, ekologies minder stabiel en daarom meer gevoelig vir natuurrampe gaan word. Soos uit die proefskrif sal blyk kan omgewingsopvoeding 'n positiewe bydrae tot bierdie omgewingsprobleme lewer. Om daarby uit te kom word daar dus eers 'n kort bistoriese oorsig van omgewingsopvoeding gegee. Die rol en bydrae wat enkele internasionale organisasies tot omgewingsbewustheid gelewer het, word ondersoek. Daar word 'n oorsig gegee van verwikkelinge in die RSA en die invloed van die Aardeberaad op omgewingsopvoeding in die RSA, word ontleed. Ten einde outentieke omgewingsopvoeding te vergestalt word aanvaar <lat die mens met sy geboorte in 'n wereld gewerp word waaraan hy slegs met sy dood kan ontsnap. In hierdie gesitueerdheid in die wereld as leefnrimte, moet hy sin aan sy bestaan gee, terwyl hy ook 'n poging moet aanwend om die omgewing te verbeter, as voorsorg vir die oorlewing van toekomstige geslagte. Met inagneming van die opvoedings- en omgewingsrelasie waarin die mens tot sy omgewing staan, word die essensiele kenmerke van omgewingsopvoeding blootgele, ten einde moontlikheidsvoorwaardes te stel vir outentieke omgewingsopvoeding. Besondere Idem word gele op omgewingsgedrag wat volhoubaarheid nastreef. Dit alles kulmineer in omgewingsgesonde gedrag wat as oorkoepelende doelstelling vir omgewingsopvoeding gestel word. Omdat die mens se gedrag teenoor die omgewing bepaal word deur sy omgewingsetiek, word drie verskillende benaderings tot omgewingsetiek onderskei. Klem word gele op die noodsaak van omgewingsgeletterdheid. Ten einde die mens se optrede teenoor die omgewing te probeer verstaan, word drie omgewingsgedragstyle ontleed. Twee wetenskaplike aardgenese-hipoteses word beskryf vir verdere duidelikheid oor omgewingsgedrag. Aan die einde van die studie, word enkele beginsels gestel wat kan lei tot die ontwikkeling van omgewingsgesonde gedrag met die oog op volhoubare voortbestaan. / Mankind's survival is interwoven with the state of the environment. Human activities have a great impact on the environment, while the environment, again, determines the quality of man's life. This study aims to aid mankind, through environmental education, to environmentally sound behaviour with an eye on sustainable development. To attain this, the different environmental problems and their causes, are sorted out first. Then the factors that can lead to environmental degradation are investigated. From this it is quite clear that in the future, the world and the RSA will be more densely populated, become more polluted, be ecologically less stable and will therefore be more sensitive to natural disasters. Because environmental education can make a positive contribution to this, a short historical survey of environmental education is given. The role and contribution of some international organisations is investigated. Developments in the RSA are surveyed and the influence of the Earth Summit on environmental education in the RSA is analysed. At birth, mankind is thrown into a world from where he can escape only at death. In this world in which he has to stay, he must give meaning to his existence, while also trying to improve the environment to guarantee the survival of coming generations. Bearing in mind the educational and environmental relationship between any human being and his environment, the essential characteristics of environmental education are exposed in order to set possible conditions for authentic environmental education. Special emphasis is placed on environmental behaviour aimed at sustainablility. All this culminates in environmentally sound behaviour that acts as the overall aim for environmental education. Because man's environmental ethic determines his behaviour towards the environment, three different approaches to environmental ethics are distinguished. Emphasis is placed on the necessity for environmental literacy. In order to try to understand man's behaviour towards the environment, three styles of environmental behaviour are analysed. For further clarification of environmental behaviour, two scientific earth genesis hipotheses are also described. In conclusion, this study leads to certain principles that can lead to the development of environmentally sound behaviour aimed at the sustainable survival of mankind. / Educational Studies / D. Ed. (Filosofie van die Opvoeding)
250

An institutional approach to appropriation and provision in the commons : a case study in the Highlands of Eritrea

Habteab Sibhatu, Adam 12 1900 (has links)
Thesis (MAgric (Agricultural Economics))—University of Stellenbosch, 2006. / The natural resources mainly land, forests, and grazing lands in the Highlands ago-ecological zone of Eritrea are in a severely degraded state. And much of these common pool resources comprise commons i.e. they are managed under the common property rights management regimes. “The tragedy of the commons”, model suggests that all commons will inexorably suffer overexploitation and degradation. Contrary to this deterministic proposition, however, common property theory argues that the ‘tragedy’ is not due to inherent flaws in the common property rights management regimes, but because of institutional failure to control access to resources, and to make and enforce internal decisions for collective use. If the commons dilemma situation exists- i.e. ‘tragedy’, then the underlying problem is the degeneration of the existing common property rights resource management regime into open-access-like regime—a condition that can potentially trigger “the tragedy of the commons”. The question of how to deal with the problem of the commons is, therefore, primarily an issue of the existence of efficient institutions. The prevailing severe degradation of the common-pool resources in the Highlands of the country thus calls into question the robustness of the common property rights regimes that are in place for the governance of these resources. This thesis attempts to address this important problem specifically in relation to forest and grazing land common pool resources. A case study based on a single-case qualitative and exploratory-explanatory research design was carried out in a village located in the Highlands of the country. Data were collected through various forms of interviews (semi-structured interviews, in-depth interviews, key informants interviews, group discussions, and informal conversational interviews), direct observation, and document review. The data, gathered largely through using these separate lines of enquiry, were crosschecked to provide a triangulation of methods and to strengthen the validity and reliability of the data. The empirical findings reveal that existing common property rights management regimes for the management of the local common pool resources of the case study area have weakened over time. These findings indicate that, there is a significant incongruence between appropriation and provision rules. And this is manifested in terms of appropriation externalities and demand side and supply side provision externalities. This situation implies that existing local institutional arrangements i.e. common property rights management regimes in the case study area are not sufficiently robust to solve common pool resource appropriation and provision externalities. Though generalisation cannot be made beyond the case that was studied, there are several lessons that may be drawn from this field analysis, which may have valid implications for the natural resources management challenges and opportunities of the entire Highlands agoecological zone of the country.

Page generated in 0.1268 seconds