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| Registros recuperados: 26 | |
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| de Vente, Joris; Spanish National Research Council (CEBAS-CSIC); joris@cebas.csic.es; Reed, Mark S.; Institute for Agri-Food Research and Innovation and Centre for Rural Economy, School of Agriculture, Food and Rural Development, Newcastle University; mark.reed@newcastle.ac.uk; Stringer, Lindsay C.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; l.stringer@leeds.ac.uk; Valente, Sandra; Centre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro; sandra.valente@ua.pt. |
| Although the design of participatory processes to manage social-ecological systems needs to be adapted to local contexts, it is unclear which elements of process design might be universal. We use empirical evidence to analyze the extent to which context and process design can enable or impede stakeholder participation and facilitate beneficial environmental and social outcomes. To explore the role of design and minor variations in local context on the outcomes of participatory processes, we interviewed participants and facilitators from 11 case studies in which different process designs were used to select sustainable land management options in Spain and Portugal. We analyzed interview data using quantitative and qualitative approaches. Results showed that... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Drylands; Environmental management; Land degradation; Social learning; Stakeholder engagement; Sustainable land management. |
| Ano: 2016 |
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| Reyers, Belinda; Natural Resources and the Environment, Council for Scientific and Industrial Research; breyers@csir.co.za; Cowling, Richard M.; Department of Botany, Nelson Mandela Metropolitan University;; Egoh, Benis N.; Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University;; Le Maitre, David C.; Natural Resources and the Environment, Council for Scientific and Industrial Research;; Vlok, Jan H. J.; Regalis Environmental Services;. |
| Land-cover change has been identified as one of the most important drivers of change in ecosystems and their services. However, information on the consequences of land cover change for ecosystem services and human well-being at local scales is largely absent. Where information does exist, the traditional methods used to collate and communicate this information represent a significant obstacle to sustainable ecosystem management. Embedding science in a social process and solving problems together with stakeholders are necessary elements in ensuring that new knowledge results in desired actions, behavior changes, and decisions. We have attempted to address this identified information gap, as well as the way information is gathered, by quantifying the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Carbon; Grazing; Human well-being; Land degradation; Ostriches; Tourism; Trade-offs; Water.. |
| Ano: 2009 |
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| DRUMOND, M. A.; OLIVEIRA, V. R. de; PORTO, D. D.; TAVARES, J. A.; CALIXTO JÚNIOR, J. A.. |
| A região do Araripe tem consumido cada vez mais a matéria prima de base florestal, especialmente, vegetação nativa, visando atender a demanda energética, para o benefi-ciamento e transformação da gipsita. O objetivo deste trabalho foi avaliar o desempenho silvicultural de algumas espécies nativas na Chapada do Araripe. O experimento foi implantado em área da Estação Experimental do Instituto Agronômico de Pernambuco (IPA) em Araripina-PE. A área experimental foi previamente arada e gradeada, tendo sido incorporada, ao solo, 2,0 t ha?1 de calcário dolomítico. Foi feita uma adubação de fundação de 100 g cova?1 com NPK (10-80-30). As mudas foram plantadas com altura variando de 25 a 30 cm. O plantio no campo foi feito em espaçamento de 4 x 4m, com parcelas de... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Bioma Caatinga; Chapada do Araripe; Polo gesseiro.; Piptadenia Obliqua; Caatinga; Espécie Nativa; Floresta; Vegetação Nativa; Vegetação; Degradação Ambiental; Myracrodruon Urundeuva; Mimosa; Silvicultura; Desmatamento.; Environmental degradation.; Vegetation types; Land degradation. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130092 |
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| ANDRADE, A. G. de; FREITAS, P. L. de. |
| This chapter presents an overview on the main technological contributions of Embrapa and partners to halt land degradation, accelerated erosive processes, desertification, sanding, salinization, and to restore degraded lands, as established in target 15.3 (United Nations, 2018): By 2030, combat desertification, restore degraded land and soil, including land affected by desertification, drought and floods, and strive to achieve a land degradation-neutral world. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Desertificação; Degradação Ambiental; Erosão; Desertification; Land degradation; Accelerated erosion. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114511 |
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| Wiebe, Keith D.. |
| Land quality and land degradation affect agricultural productivity, but quantifying these relationships has been difficult. Data are limited, and impacts are sensitive to the choices that farmers make. Summarizing new research by economists, soil scientists, and geographers, this report explores the extent to which land quality and land degradation affect agricultural productivity, how farmers' responses to land degradation are influenced by economic, environmental, and institutional factors, and whether land degradation poses a threat to productivity growth and food security. Results suggest that land degradation does not threaten food security at the global scale, but does pose problems in areas where soils are fragile, property rights are insecure, and... |
| Tipo: Report |
Palavras-chave: Land quality; Land degradation; Soil erosion; Agricultural productivity; Food security; Food Security and Poverty; Land Economics/Use; Productivity Analysis. |
| Ano: 2003 |
URL: http://purl.umn.edu/34073 |
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| Clayton, Helena; Brennan, Donna C.. |
| This paper explores the economics of land degradation in the rice-shrimp system in the Mekong Delta of Vietnam. A bioeconomic NPV model was developed to evaluate and compare the long-term benefits of alternative production choices and farm technologies. There is an alternative rice-shrimp technology emerging in Vietnam that does not have the same land degrading impacts as the 'traditional' system, however the high capital outlay and risk associated with such technology presents its own problems. In the paper the economic incentives for adoption of the non-land degrading rice-shrimp technology are explored. Conclusions are drawn with regard to the opportunity cost of land degradation and technological change. Some conclusions are also provided on the policy... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land degradation; Technological change; Vietnam; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/57845 |
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| Pender, John L.; Nkonya, Ephraim M.; Jagger, Pamela; Sserunkuuma, Dick; Ssali, Henry. |
| This paper estimates a structural econometric model of household decisions regarding income strategies, participation in programs and organizations, crop choices, land management, and labor use, and their implications for agricultural production and land degradation; based upon a survey of over 450 households and their farm plots in Uganda. The results generally support the Boserupian model of population-induced agricultural intensification, but do not support the "more people-less erosion" hypothesis, with population pressure found to contribute to erosion in the densely populated highlands. Agricultural technical assistance programs have location-specific impacts on agricultural production and land degradation, contributing to higher value of crop... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural productivity; Land degradation; Agricultural development strategies; Uganda; Farm size-productivity; Land Economics/Use; Productivity Analysis. |
| Ano: 2003 |
URL: http://purl.umn.edu/25816 |
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| Pender, John L.; Gebremedhin, Berhanu; Benin, Samuel; Ehui, Simeon K.. |
| This paper investigates the impacts of population growth, market access, agricultural credit and technical assistance programs, land policies, livelihood strategies and other factors on changes in land management, natural resource conditions and human welfare indicators since 1991 in the northern Ethiopian highlands, based on a survey of 198 villages. We find that population growth has contributed significantly to land degradation, poverty and food insecurity in this region. In contrast, better market access and some credit and technical assistance programs were associated with improvement (or less decline) in land quality, wealth and food security; suggesting the possibility of "win-win-win" development outcomes with appropriate interventions. Land... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Land degradation; Sustainable agriculture; Population pressure; Ethiopian highlands; Environmental Economics and Policy; International Development. |
| Ano: 2001 |
URL: http://purl.umn.edu/16121 |
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| Pender, John L.; Nkonya, Ephraim M.; Kato, Edward; Kaizzi, Crammer; Ssali, Henry. |
| We investigate the impacts of coffee and cotton production on land management and land degradation in Uganda, based on a survey of 851 households and soil measurements in six major agro-ecological zones, using matching and multivariate regression methods. The impacts of cash crop production vary by agro-ecological zones and cropping system. In coffee producing zones, use of organic inputs is most common on plots growing coffee with other crops (mainly bananas), and least common on mono-cropped coffee. Both mono-cropped coffee and mixed coffee plots have lower soil erosion than other plots in coffee producing zones because of greater soil cover. Potassium depletion is much greater on mixed banana-coffee plots. In the cotton production zone, few land... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land management; Land degradation; Soil nutrient depletion; Soil erosion; Agricultural commercialization; Cash crops; Uganda; Agricultural and Food Policy; International Development; Production Economics; Resource /Energy Economics and Policy; Q13; Q16; Q17. |
| Ano: 2009 |
URL: http://purl.umn.edu/50760 |
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| Cacho, Oscar J.. |
| Agroforestry can help prevent land degradation while allowing continuing use of land to produce crops and livestock. A problem with the evaluation of agroforestry using long-run static models and traditional discounting techniques is that the present value of the forestry enterprise is generally much lower than that of other production activities. This problem is common with Australian native species which tend to have a high environmental value but a low market value. This paper presents an economic analysis of an agroforestry operation in land prone to degradation and in the presence of positive externalities provided by trees. The value of the land is estimated based on the present value of expected returns in perpetuity under optimal management.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agroforestry; Land degradation; Externalities; Dryland salinity; Land Economics/Use. |
| Ano: 1999 |
URL: http://purl.umn.edu/12931 |
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| Registros recuperados: 26 | |
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