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| Registros recuperados: 26 | |
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| Beniaich,Adnane; Silva,Marx Leandro Naves; Guimarães,Danielle Vieira; Bispo,Diêgo Faustolo Alves; Avanzi,Junior Cesar; Curi,Nilton; Pio,Rafael; Dondeyne,Stefaan. |
| ABSTRACT In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of olive trees. Given the fast expansion of olive orchards in Brazil, this study aimed to evaluate the effect of cover vegetation on soil and water losses under natural rainfall. In addition, it was assessed the crop performance and the vegetation cover index in different management systems in olive orchards. The study was carried out in soil erosion plots, where water and sediment were sampled and measured over two crops season, under the following treatments: in the first season, bare soil with olive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Soil loss; Land degradation; Runoff; Olive cultivation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100503 |
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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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| 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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| 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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| 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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| Telles,Tiago Santos; Dechen,Sonia Carmela Falci; Guimarães,Maria de Fátima. |
| The problem of soil erosion in Brazil has been a focus of agricultural scientific research since the 19th century. The aim of this study was to provide a historical overview of the institutional landmarks which gave rise to the first studies in soil erosion and established the foundations of agricultural research in Brazil. The 19th century and beginning of the 20th century saw the founding of a series of institutions in Brazil, such as Botanical Gardens, executive institutions, research institutes, experimental stations, educational institutions of agricultural sciences, as well as the creation and diversification of scientific journals. These entities, each in its own way, served to foster soil erosion research in Brazil. During the Imperial period... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Historiography; Soil conservation; Land degradation; Soil science. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000600001 |
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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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| Doole, Graeme J.; Hertzler, Greg. |
| The capacity of global agricultural production to meet increased demand for food from population growth and wealth accumulation is threatened by extensive land degradation. Nonetheless, previous research has focused primarily on the dynamic implications of input management and ignored land-use choice. This paper extends this theory through an examination of the intertemporal management of agricultural land through the use of non-crop inputs, such as fertilizer, and land uses that either degrade or restore productivity. The need to consider the relative total asset value of alternative crops over time is demonstrated. Moreover, higher output prices for degrading crops are shown to increase their relative value, motivating the later adoption of substitutes.... |
| Tipo: Journal Article |
Palavras-chave: Crop sequences; Land degradation; Regime switching; International Development; Production Economics; Q15; Q24. |
| Ano: 2011 |
URL: http://purl.umn.edu/100643 |
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| Registros recuperados: 26 | |
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