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	Provedor de dados Scientia Agricola (1) Ecology and Society (1) Autor Kuntashula, Elias; University of Zambia; ekuntashula@unza.zm (1) Thomaz,Edivaldo Lopes (1) Vermeylen, Saskia; Lancaster University; s.vermeylen@lancaster.ac.uk (1) van der Horst, Dan; University of Edinburgh; dan.vanderhorst@ed.ac.uk (1) Palavra-chave Marginal land (2) Africa (1) Agricultural intensification (1) Biofuels (1) Burn severity (1) Live fence (1) Prescribed fire (1) Soil erodibility (1) Subsistence agriculture (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Peer-Reviewed Reports (1) Ano 2017 (1) 2014 (1) País Brazil (1) Canada (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última The hedgification of maizescapes? Scalability and multifunctionality of Jatropha curcas hedges in a mixed farming landscape in Zambia Ecology and Society van der Horst, Dan; University of Edinburgh; dan.vanderhorst@ed.ac.uk; Vermeylen, Saskia; Lancaster University; s.vermeylen@lancaster.ac.uk; Kuntashula, Elias; University of Zambia; ekuntashula@unza.zm. We argue that reading the local agricultural landscape is a prerequisite to understanding the plausible local impacts of external drivers for change, such as the introduction of new crops and technologies. Initially driven by a desire to understand the potential for small-scale farmers to produce jatropha biodiesel in a sustainable way, we started to examine how farmers related to trees in different parts of the agricultural landscape. This provided us with insights into small-scale processes of land enclosure and conversion, which indicate that agricultural intensification is taking place. We learned that although the landscape could in theory accommodate a lot of jatropha hedges around existing (maize dominated) arable land, farmers were only creating... Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Agricultural intensification; Biofuels; Live fence; Marginal land. Ano: 2014 High fire temperature changes soil aggregate stability in slash-and-burn agricultural systems Scientia Agricola Thomaz,Edivaldo Lopes. ABSTRACT Fire is a key controlling factor in ecosystem dynamics worldwide, especially, in tropical areas under slash-and-burn agricultural systems. Farmers use fire as a tool to clean the land, and benefit from nutrient enrichment from ash-soil heating. However, fire can cause some detrimental effects on soil systems, such as organic carbon depletion, increased soil erodibility, and changes to aggregate stability. In this study, an experimental fire was applied to a plot of land following the local traditional practice of slash-and-burn. The fire temperature was monitored in the field, and its effect on soil aggregate stability was assessed. The fire temperature on soil surface was measured in four trenches, and it ranged from 355 to 660 °C (average 484 ±... Tipo: Info:eu-repo/semantics/article Palavras-chave: Burn severity; Prescribed fire; Soil erodibility; Marginal land; Subsistence agriculture. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000200157 Registros recuperados: 2 Primeira ... 1 ... Última

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