O principal objetivo deste estudo foi avaliar a saúde da microbacia hidrográfica do rio Passo Cue, região oeste do estado do Paraná, por meio do uso de indicadores de qualidade de solo e água. Esse rio é afluente da margem esquerda do reservatório de Itaipu e pertence à bacia hidrográfica do Paraná III. Como indicadores de qualidade de água foram utilizadas variáveis físicas, químicas e biológicas. Para avaliação da qualidade do solo, foram analisados os atributos textura, densidade, porosidade, carbono orgânico, biomassa microbiana, respiração basal, quocientes metabólico e microbiano, macro e micronutrientes, pH e saturação por alumínio. Os indicadores que se mostraram mais eficientes foram a densidade do solo e o quociente metabólico. O solo sob plantio direto apresentou melhor qualidade física, química e biológica em relação ao cultivo mínimo sem rotação de culturas. O solo sob plantio direto apresentou melhor qualidade biológica do que o solo sob fragmento florestal. A qualidade da água na microbacia do rio Passo Cue piorou da montante para a jusante em função do seu uso agropecuário. / The main purpose of this study was to evaluate the conditions of the Passo Cue river watershed, in western Paraná, through soil and water quality indicators. The river is an affluent of the left bank of the Itaipú reservoir and is a part of the Paraná III watershed. Physical, chemical and biological variables were used as water quality indicators. To evaluate the soil quality, texture, density, porosity, organic carbon, microbial biomass, basal respiration, metabolic and microbial quotients, macro and micronutrients, pH and aluminum saturation were analyzed. The more efficient indicators were soil density and metabolic quotient. No-tillage soil showed better physical, chemical and biological quality in relationship with the minimum tillage one with no crop rotation. The soil under no tillage had better biological quality than under forest fragment. The water quality of the Passo Cue river worsened downstream in view of the agricultural use.

Thesis (MSc (Geography and Environmental Studies))--University of Stellenbosch, 2005. / In the past, development was allowed in agricultural areas which would not be acceptable under current planning policy. There is a growing need to develop and maintain highly productive and ecologically stable agricultural systems. One approach to encourage better land management and utilisation is the international certification of a farm’s production practices.

Agricultural production has contributed over time to food security and rural economic development in developing countries particularly supporting the countryside. Evidence show that crop yields are declining in the Lower River Benue Basin of Nigeria. This study conducted a land use evaluation and suitability mapping for production of yam, cassava and also assessed the possible socioeconomic impediments that may hinder or enhance sustainable agricultural development in the Lower River Benue Basin. The study adopted physical assessments and socioeconomic approach coupled with mapping which incorporated processing of satellite imagery. Statistical methods were used to measure the status, trends, level of dispersion, and relationships between the variables of physical and socioeconomic parameters. Modelling techniques for determining potential impacts assessment, agricultural suitability index, adaptive capacity index, finally producing suitability maps. Geo-informatics processes were used to produce a digital elevation model, land use and land cover map, and normalised difference vegetation index map. The results were thematic maps, weighted percentages of attribute data, and suitability maps produced through weighted overlay. An intensive analysis of climatological data depicted a progressive intensity of rainfall, and a decreasing trend in the number of rain days; a gradual temperature rise; and high relative humidity during the planting season which is about 168 days. Laboratory analysis show that soils in the study area require fertility enhancement with inorganic fertilisers to encourage better crop yield. Results show that the Lower River Benue Basin is suitable for yam, cassava, and rice cultivation as classified on maps of suitable areas. Rice had the highest suitability percentages (38.30%). The study area was found to be moderately suitable for each of the crops examined by more than 40% for each crop. Cassava had the least suitability percentages (34.47%). Evidence suggests that agricultural development in the Lower River Benue Basin is under threat from potential impacts of climate variability and change, population growth, and infectious diseases. The agricultural suitability index of the study area regards the study area as suitable (70.5%) and the adaptive capacity index of the study area was moderate (50.83%), but it was found that serious attention need to be given to farm technology and infrastructure. Mitigation strategies and recommendations which are beneficial to the sustainable development of agriculture have been provided in line with the established characteristics of the Lower River Benue Basin. / Environmental Sciences / D. Phil. (Environmental Management)

Backyard gardens has been identified as one of the possible solutions to some of the issues surrounding poverty alleviation in the Bojanala Platinum District Municipality. The main objective of the study was to determine the economic contribution of backyard gardens in alleviation of poverty in rural communities of Bojanala Platinum District Municipality in the North West Province, South Africa. The study used purposive sampling for data collection from the study respondents which enabled the researcher to select a sample with experience and knowledge about the study variables. The questionnaire used as data collection instrument was pretested, validated and subjected to reliability test to improve the efficiency of the use of the questionnaire. The collected data was sorted, coded and analysed using Statistical Package for Social Science (SPSS) Version 23.0 software. Frequency count and percentage were used to summarize the data into tables and graphs. The linear multiple regression model specification was employed to examine the demographic and socio-economic factors (predictors) that influence the generation of income from backyard gardens. Multinomial logistics regression model was also used to determine factors influencing the respondents’ objectives for the Backyard gardens, while the logit regression model was used to analyse determinants of the proportion of backyard land used for backyard farming by respondents/growers. The findings of the study are that: more females (68.2%) were involved in the study than males (31.8%); youth involved in the study were 27.7%; the majority (60.4%) of respondents are in the age group of 41-70 years of age; majority (69.5%) of respondents had matric education, 20.9% had tertiary education, and 3.6% had below matric education whilst 5.9% had no formal education; most of respondents are unemployed (86.6%); 32.2% of respondents are dependent on pension as their source of income, 12.3% depend on grant, 15% depend on monthly salaries, 0.5% depend on investments, 2.3% depend on remittance, and 18.6% depend on piece jobs, whilst 19.1% reported other source of income; majority (99%) of respondents reported that backyard garden contribute a significant proportion to both household income and food security, whilst 1.0% did not agree; 40% of the respondents could not manage to farm the whole garden area, while 60% were able to farm the entire garden area; the majority (70.9%) of respondents provide own solutions to their backyard garden challenges; majority (53.7%) of respondents reported that extension officers never visited their gardens, whilst 46.3% had extension visits on weekly, monthly and quarterly bases; 23.2% of the respondents created permanent employment while 34.1% of them created seasonal employment. The results of the OLS regression analysis showed that gender of respondents, with formal employment, ownership of a farm besides the Backyard garden (BYG) by respondent, farmers’ years of experience in farming and annual income from the sale of livestock by respondent had positive and statistically significant influence on the annual income from Backyard garden with all other factors held constant. The results of the multinomial regression analyses show that a unit change in number of years involved in backyard gardening (YRSBG) does not significantly change the odds of being classified in the 4th category of the outcome variable (Produce to help the needy, the poor, to feed the orphans, and for home based-cares around their communities = 4) relative to the first or second or third categories of the outcome variable, while controlling for the influence of the others. On the other hand a unit change in being employed (EMPLO) and involved in non-farm activities (NFA) do significantly change the odds of being classified in the 4th category of the outcome variable relative to the second or third categories of the outcome variable, while controlling the influence of the others. The Logit coefficient estimate associated with Age, Income per month from BYG, Engage in non-farm activities, Years of experience in gardening, Proportion of produce consumed, having a business plan, Own a farm besides BYG and to lease your backyard have statistically significant impact on respondents area of cultivation for BYG with other factors held constant. Policies to improve BYG in the district should be informed by the aforementioned variables from the results of the inferential analyses. / Agriculture / M. Sc. (Agriculture)

A contradiction between the Ethiopian law of investment and environmental law is prevalent since law of investment promotes development while environmental law protects the environment. The thesis investigates the general legal issue: How do the investment and environmental laws of Ethiopia promote large-scale agricultural development without adversely affecting the environment? In the research, comparative legal research methodology is employed: comparison is made between the internationally accepted principles of large-scale agricultural investment and Ethiopian laws; the laws and experiences of Brazil and South Africa are showed that law of sustainable large-scale agricultural investment is vital to promote agricultural development and protect the environment. International law on investment and environment are also considered. International legal principles of solving the contradiction between environmental law and investment law are analysed. Legal and document analysis of Ethiopian laws, policies and government documents have been made. Interviews have been made, data through questionnaires have been collected and analysed, and 12 large-scale agricultural investment farms have been observed and critically analysed. The thesis identified that law of large-scale agricultural investment promotes development while Ethiopian environmental law protects the environment. The law has a role in promoting large-scale agricultural development by recognising the right to development and providing incentives and creating conducive environment. Thus, the law should be used to promote both the right to development and environmental protection. The nexus between investment law and environmental law should be strengthening. It is identified that the law of sustainable large-scale agricultural development could protect the environment while promoting large-scale agricultural development. The thesis identified the Ethiopian law and the practices do not promote sustainable large-scale agricultural development. Thus, it is recommended that precautionary principle, like EIA should be made a requirement for large-scale agricultural investment, implementing efficiently and effectively the large-scale agricultural law principles, and laws to achieve sustainable large-scale agriculture. / Public, Constitutional and International Law / LL. D.

The primary aim of my research was to identify the impacts and adaptation options of climate variability and change on agricultural production in Limpopo province. The following objectives were identified: To understand the impacts of climate variability and change on agricultural production in Limpopo province , To assess the impacts of climate variability and change on agricultural production in Limpopo province and To identify adaptation measures that reduces the impacts of climate variability and change on agricultural production in Limpopo province. A representative sample of 300 farmers aged 16- 65+ years (46 percent males and 54 percent females) participated in the study. The study involved Sekhukhune and Capricorn districts, with 56 percent farmers in Capricorn and 44 percent in Sekhukhune district. The following 11 local municipalities were visited: Elias Motsoaledi, Makhuduthamaga, Fetakgomo, Ephraim Mogale, Tubatse, Lepelle Nkumpi, Blouberg, Aganang, Polokwane, and Molemole. The Limpopo province is one of the poorest provinces in the country, characterized by high unemployment rate, poverty and lack of access to a range of resources that frustrate majority of people ability to secure their livelihoods. In this study the province's economic, biological and physical environment were highlighted. The study further covers the province, s farming enterprises, systems, categories, infrastructure as well as other constraints that maybe facing the emerging farmer in the province. It is assumed that the majority of farmers in both the Capricorn and Sekhukhune districts are using different coping and adaptation strategies in order to increase their crop yields. Literature studies show that climate variability and change adaptation strategies vary from area to area due to agro ecological zones and the harshness of the effects of climate variability and change. It has also been noted that climate change is fast pushing the poorest and most marginalized communities beyond their capacity to respond. This study draws on lessons learned, experiences, and other existing research on climate change impacts and adaptation across the globe. It sets out what is needed to enable people living in poverty to adapt to climate change, and a range of interventions that are available across climate - sensitive sectors. The study has provided a literature review of the impact of climate change on the agricultural sector. In fact, it has documented some of the likely impacts of climate change based on International, continental, regional, national and provincial agricultural sector. The study highlighted the impact of climate change also on various climate - sensitive sectors including understanding water resources, forestry, natural ecosystem human health, infrastructure and coastal zones. This research also confirmed that being a full time farmer, gender, information on climate change, information received through extension services and adaptation to climate change are some of the important determinants of agricultural production, food scarcity and unemployment. A worrying situation is reviewed globally in this study and it can be concluded that climate variability and change is affecting every sector in society and it needs urgent attention. Statistics was used to determine climate variability and change impact on agricultural production. Results indicate that farmers are aware that Limpopo province is getting warmer and drier with increased frequency of droughts, changes in the timing of rains, observed trends oftemperature and precipitation. The study also presented perceived adaptation strategies used by farmers in Limpopo province. Some of their perceived adaptation strategies included: (a) Soil management strategies, (b) Water management strategies and (c) Others like use of subsidies and use of insurance. Other important adaptation options being used by farmers were also discussed in this study including different adaptation measures against colds, heat, frost, abnormal wind, hail, lack of extension support, nematodes, insecticides, worms, temperature and rainfall. The results of this study are potentially valuable to the agricultural sector considering the threats that climate change poses across climate sensitive sectors. / Environmental Sciences / D. Phil. (Environmental Management)

Through a combination of theoretical discussion and case study analysis from two villages in the Eastern Cape Province, South Africa, this thesis explores the relationship between institutional change and ecosystem dynamics through a multi-scale approach that combines local and scientific knowledge. Several conceptual approaches were combined in this study. These included; the Resilience perspective, the Sustainable Rural Livelihoods approach, the Millennium Assessment framework and principles, and the Environmental Entitlements approach. Various participatory research techniques were employed which combined with GIS technologies, existing data sets, and historical records. Common pool resource areas are social spaces, where local values attached to resources are institutionally mediated, politically nuanced, economically interpreted and historically situated. Political driving forces at various scales have played a disproportionate role in local level institutional functioning in the case study area. In particular, inappropriate state-lead interventions into land use planning have weakened local level institutions, and have reduced the ability of the linked social-ecological system to cope with change and uncertainty. People and ecosystems become more vulnerable when driving forces such as political upheaval, economic depression and drought over-lap. However, rural people are not mere spectators in the face of these driving forces; they respond both reactively and proactively to ensure resilience to change and uncertainty. Ecosystems at Mt Coke play a key role during times of crisis in rural livelihoods. These ecosystems have undergone various short-term cyclical changes largely in response to rainfall fluctuations, and some longer-term changes linked to political events and trends that have affected management practices and local institutions over time. Orthodox ecological interpretations of ecosystem change appear to ignore four key factors identified in this study: 1) the role of institutions in shaping access to resources, 2) the demand for resources in rural livelihoods, 3) the dynamic interaction between social and natural systems, and 4) the interaction between social and natural systems across scales of analysis. The future of common pool resource management lies in the combination of local and scientific knowledge through an adaptive management approach that encourages learning and adaptation in local level institutional structures.

The Little Karoo, situated in the Succulent Karoo biome of South Africa, has been heavily transformed by land use, and only 8.6% of the remaining natural vegetation is considered to be intact. There is ample evidence that the main cause of degradation is the overstocking of ostriches, an industry that has been the major economic driver of the area for more than 150 years. The ostrich stocking rate currently recommended is 22 ha.ostrich⁻¹. A literature review was used to examine the evidence, assumptions and rationale on which recommended and actually implemented stocking rates for ostriches are based. No experimental evidence using ostriches was found that supported the recommended stocking rate as either ecologically or economically sustainable. From the literature, there appears to be a wide gap between what are considered to be economically and ecologically sustainable stocking rates, with the implication that these two aims may be impossible to reconcile when practicing ostrich farming on natural veld. A comparison of recommended with actual stocking rates among land managers in the Little Karoo showed that all land managers far exceeded the recommended agricultural stocking rate of 22.8 ha.ostrich⁻¹. However, the stocking rates reported by land managers to the South African Ostrich Business Chamber were found to accurately reflect actual numbers determined when whole flocks had to be slaughtered after an outbreak of avian influenza. The recommended stocking rate appeared to be irrelevant to ostrich flock breeders and there appeared to be a trade-off between profitable ostrich farming and sustainable land-use practices. This study also investigated the attitudes and behaviour of ostrich farmers. It was found that environmental attitude is most likely the most important characteristic of a land manager to ensure positive conservation behaviour. This characteristic was most prominent in younger land managers with larger farms. The last component of the study integrated the context and complexity of the long term social, economic and ecological sustainability of this industry through the development of a logic model. The results showed a general lack of linkages between industry elements which impact on achieving sustainability targets. Greater collaboration between industry role-players, organized agriculture and conservation organizations is required to find a balance between utilization and conservation in the ostrich industry.

Orientador: Kil Jin Park / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola / Made available in DSpace on 2018-08-08T01:25:07Z (GMT). No. of bitstreams: 1 Maldonade_IrisRodrigues_M.pdf: 1445906 bytes, checksum: 945b97b2266f7d2e873bccd2181b847e (MD5) Previous issue date: 2006 / Resumo: A presente pesquisa focaliza as práticas educativas ambientais realizadas no período de 2001 a 2004, em Joaquim Egídio, Distrito da cidade de Campinas-SP. A partir da experiência do trabalho pedagógico do Centro Municipal de Educação Infantil-CEMEI Alexandre Sartori Faria, desse Distrito, seleciona-se os entrevistados pelo envolvimento e inserção que possuem na escola e no Distrito.Utiliza-se da pesquisa etnográfica, com enfoque nos aspectos qualitativos, com uso de técnicas de observação participante, de entrevista e de análise de documentos. A ênfase da entrevista se dá no relato oral dos entrevistados por esta permitir que o entrevistado use de seu conhecimento e de sua história de vida, selecionando os elementos necessários para o desenvolvimento da pesquisa. As entrevistas foram gravadas e transcritas, posteriormente, possibilitando a análise dos dados com o confronto da experiência do CEMEI, sob as categorias: Imaginário Rural e Urbano, Parcerias entre Poder Público e Privado, Relação Escola-Comunidade e Conceito de Educação Ambiental. Conclui-se que a sustentabilidade local é possível quando os membros da comunidade se inserem na vida cotidiana do Distrito, participando dos seus eventos e buscando na própria comunidade, articulações para enfrentar os problemas locais. Através da identificação com o local, as pessoas constroem o sentido de pertencimento que é fundamental para o desenvolvimento sustentável do local. A pesquisa finaliza com alguns apontamentos extraídos da análise dos dados, que podem ser pertinentes enquanto indicadores para possíveis Políticas Públicas a serem implementadas na região / Abstract: The present research studies the environmental educative practice carried through in the period of 2001 the 2004, in Joaquin Egídio, District of the city of Campinas-SP, Brazil. From the experience of the pedagogical work of the Municipal Centre of Infantile Education of this District, CEMEI-Alexander Sartori, the representing pupils of the traders and the agriculturist families were identified and selected for the interview. Ethnical research was used to study it considering the participant comments, document interview and analysis with approach in the qualitative aspects. The interviews had had emphasis in Verbal History for this to allow the interviewed one used its knowledge and its history of life, selecting the necessary elements for the development of the research. The interviews had been recorded and transcribing later, making possible the analysis of the data with the confrontation of the experience of the CEMEI, under the categories: Imaginary Agricultural and Urban, Partnerships between the Public and Private power, Relation School-Community and Concept of Ambient Education. It is concluded that the local maintenance is possible when the members of the community are inserted in the daily life of the District, beginning as participant of feasts up to joining to the community to face the local problems. Once the person identifies to the place, the feeling of belonging to the community is raised, which is essential to the sustainable development of the place. The research finishes with some extracted notes of the analysis of the data that can be pertinent for the Public Politics of the region / Mestrado / Tecnologia Pós-Colheita / Doutor em Engenharia Agrícola

The purpose of the study was to investigate the effects of the underutilisation of the restored farmlands in the Taung area of the North West province, South Africa. The study was based on the two communal property institutions: the Sebuemang-Khaukhwe Communal Property Association (CPA) and Rethabile Mosimane Trust. This study was grounded in the theory of the Sustainable Livelihoods Framework (SLF). A qualitative research methodology was used to guide the study, while the SLF was used to guide the study, relevant data gathering methods, and the selection of measuring instruments led to the acceptable findings. The findings of the research study have confirmed that there were some effects of the underutilisation of the land in the two communal property institutions (CPIs). The underlying factors of the underutilisation of the land were found to be the institutional weaknesses of the state, and to a lesser extent, the institutional weaknesses of the CPIs. Furthermore, the findings revealed that the effects on the beneficiaries of the two CPIs, were not as massive as contemplated due to the contribution of the state’s social welfare programme on the livelihoods of the beneficiaries. Some of the effects identified were namely: no farm production, no sale and income of farm production, no home consumption of farm produce surplus and no employment. Additional to that host of the factors of vulnerability there are that rose from them i.e.: poverty, destitution, and emotional effects (frustration and anger) and ultimate conflict eruption in the CPIs. In conclusion, the study made recommendations based on key issues which some are: Adequate livelihoods and technical support by state, state’s policies review, retention of the state’s social welfare support, requesting of the private sector to contribute to land reform and rehabilitation of the old gravel road by a relevant state organ (Dept: Public works). / Development Studies / M.A. (Development Studies)