Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Climate Science, Development Practice, and Policy Interactions in Dryland Agroecological Systems Ecology and Society
Twyman, Chasca; Department of Geography, University of Sheffield; Sheffield Centre for International Drylands Research; C.Twyman@shef.ac.uk; Fraser, Evan D. G.; Department of Geography, University of Guelph; University of Leeds; frasere@uoguelph.ca; Stringer, Lindsay C.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; l.stringer@leeds.ac.uk; Quinn, C.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; C.H.Quinn@leeds.ac.uk; Dougill, Andrew J.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; a.j.dougill@leeds.ac.uk; Crane, Todd A.; Technology and Agrarian Development, Wageningen University ; todd.crane@wur.nl; Sallu, Susannah M.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; s.sallu@leeds.ac.uk.
The literature on drought, livelihoods, and poverty suggests that dryland residents are especially vulnerable to climate change. However, assessing this vulnerability and sharing lessons between dryland communities on how to reduce vulnerability has proven difficult because of multiple definitions of vulnerability, complexities in quantification, and the temporal and spatial variability inherent in dryland agroecological systems. In this closing editorial, we review how we have addressed these challenges through a series of structured, multiscale, and interdisciplinary vulnerability assessment case studies from drylands in West Africa, southern Africa, Mediterranean Europe, Asia, and Latin America. These case studies adopt a common vulnerability framework...
Tipo: Peer-Reviewed Insight Palavras-chave: Climate change; Drylands; Scenarios; Narratives; Development; Livelihoods; Poverty; Policy.
Ano: 2011
Imagem não selecionada

Imprime registro no formato completo
How does the context and design of participatory decision making processes affect their outcomes? Evidence from sustainable land management in global drylands Ecology and Society
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
Imagem não selecionada

Imprime registro no formato completo
Resilience of small-scale societies: a view from drylands Ecology and Society
Puy, Arnald; Institute of Geography, University of Cologne; Maritime Civilizations Department, Recanati Institute for Maritime Studies, University of Haifa; arnald.puy@gmail.com; Biagetti, Stefano; Complexity and Socio-Ecological dynamics (CaSEs), Spain; Departament d'Humanitats, Universitat Pompeu Fabra; School of Geography, Archaeology and Environmental Studies (GAES), University of the Witwatersrand; stefano.biagetti@upf.edu.
To gain insights on long-term social-ecological resilience, we examined adaptive responses of small-scale societies to dryland-related hazards in different regions and chronological periods, spanning from the mid-Holocene to the present. Based on evidence from Africa (Sahara and Sahel), Asia (south margin of the Thar desert), and Europe (South Spain), we discuss key traits and coping practices of small-scale societies that are potentially relevant for building resilience. The selected case studies illustrate four main coping mechanisms: mobility and migration, storage, commoning, and collective action driven by religious beliefs. Ultimately, the study of resilience in the context of drylands emphasizes the importance of adaptive traits and practices that...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Climate change; Coping mechanisms; Drylands; Resilience; Social-ecological systems; Sustainability; Traditional ecological knowledge.
Ano: 2016
Imagem não selecionada

Imprime registro no formato completo
Impacts Of Inventory Credit, Input Supply Shops, and Fertilizer Microdosing in the Drylands of Niger AgEcon
Pender, John L.; Abdoulaye, Tahirou; Ndjeunga, Jupiter; Gerard, Bruno; Kato, Edward.
This study investigated the impacts of access to inventory credit, input supply shops, fertilizer microdosing demonstrations, and other factors on farmers’ use of inorganic fertilizer and other inputs in Niger and on crop yields. We found that access to inventory credit and input supply shops has increased the use of inorganic fertilizer and seeds and that microdosing demonstrations have increased the use of inorganic fertilizer. Ownership of traction animals and access to off-farm employment have also contributed to the use of inorganic fertilizer, while larger farms use less fertilizer and labor per hectare. The impacts of these interventions and technologies depend on the crop mix. Inorganic fertilizer has a positive impact on millet and millet–cowpea...
Tipo: Working or Discussion Paper Palavras-chave: Fertilizer microdosing; Inventory credit; Warrantage (the French term for inventory credit); Input supply shops; Drylands; Niger; Sahel; Agribusiness; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/42328
Imagem não selecionada

Imprime registro no formato completo
Biting the Bullet : How to Secure Access to Drylands Resources for Multiple Users AgEcon
Mwangi, Esther; Dohrn, Stephan.
Close to one billion people worldwide depend directly upon the drylands for their livelihoods. Because of their climatic conditions and political and economic marginalization drylands also have some of the highest incidents of poverty. Pastoral and sedentary production systems coexist in these areas and both very often use common property arrangements to manage access and use of natural resources. Despite their history of complementary interactions, pastoralists and sedentary farmers are increasingly faced with conflicting claims over land and other natural resources. Past policy interventions and existing regulatory frameworks have not been able to offer lasting solutions to the problems related to land tenure and resource access; problems between the...
Tipo: Working or Discussion Paper Palavras-chave: Drylands; Secure access; Land tenure; Customary rights; Natural resources; Multiple users; Africa; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/42498
Imagem não selecionada

Imprime registro no formato completo
Could biological invasion by Cryptostegia madagascariensis alter the composition of the arbuscular mycorrhizal fungal community in semi-arid Brazil? Acta Botanica
Souza,Tancredo Augusto Feitosa de; Rodriguez-Echeverría,Susana; Andrade,Leonaldo Alves de; Freitas,Helena.
Biological invasions pose a serious threat to native semi-arid areas of Brazil, especially in areas of the state of Ceará that are typically invaded byCryptostegia madagascariensis, an exotic plant species from Madagascar. However, how this biological invasion influences the composition of the arbuscular mycorrhizal fungal (AMF) community and how this affects further invasion by C. madagascariensis is not well known. Here we tested how inoculation with species of AMF affects the development of this invasive plant. We analyzed and compared the AMF community composition of four different stages of biological invasion by C. madagascariensis, and examined the effects of inoculation with these four AMF communities, plus a dominant AMF species (Rhizoglomus...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AMF inoculation; Biological invasion; Drylands; Glomeromycota; Rhizoglomus intraradices.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100093
Imagem não selecionada

Imprime registro no formato completo
Genetic parameters of growth and survival in Acacia saligna shrubs Ciencia e Investigación Agraria
Mora,Freddy; Perret,Sandra; Scapim,Carlos Alberto; Arnhold,Emmanuel.
Acacia species have valuable agronomic characteristics, such as the tolerance to unfavorable environmental conditions. In this study, genetic parameters and selection response in Acacia saligna shrubs were investigated in two arid environments of northern Chile: Cuz-Cuz and El Tangue. The quantitative traits were assessed in 5 year-old shrubs. A Bayesian approach, implemented using Gibbs sampling algorithm, was used in the data analysis. The tree survival was 87.3% and 81.8% in Cuz-Cuz and El Tangue, respectively, confirming the potential of A. saligna in northern Chile. The estimates of posterior mode of the heritability ranged from h2=0.13 (survival) to h2=0.25 (shrub crown diameter). Estimated genetic gain (individual tree selection) ranged from 6 to...
Tipo: Journal article Palavras-chave: Drylands; Fodder production; Acacia saligna; Multipurpose trees; Bayesian analysis.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200001
Registros recuperados: 7
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional