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Showing items 1 through 9 of 40.-
Library ResourceReports & ResearchDecember, 2019Sub-Saharan Africa
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Library ResourceJournal Articles & BooksAugust, 2020
Changes in the amount and location of cropland areas may affect the potential crop production at different spatial scales. However, most studies ignore the impacts of cropland displacement on potential crop production. In many countries, cropland protection policies mainly aim for no loss in cropland area, while there is no restriction on change of cropland location. Taking China as the study area, we analyze the impacts of cropland displacement on potential crop production at four administrative levels during the period 2000 and 2018.
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Library ResourceReports & ResearchDecember, 2015Netherlands
Om landbouwkundige en milieukundige prestaties van bedrijven te beoordelen, kan het nuttig zijn om prestaties te spiegelen aan normen. Eén van de normen die hiervoor gebruikt kan worden, zijn de normen (opbrengsten, afvoeren, bodemoverschotten, benuttingen) die behoren bij een bedrijf dat de wettelijke toegestane (kunst)mestgiften (‘gebruiksnormen’) maximaal opvult. Dit type normen kan modelmatig geschat worden. Een voorbeeld van een daarvoor geschikt model is het WOD-model.
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Library ResourceJournal Articles & BooksDecember, 2020
Few longitudinal studies link agricultural biodiversity, land use and food access in rural landscapes. In this paper, we test the hypothesis that, in a context of economic change, cash crop expansion is associated with deforestation, reduced agrobiodiversity and changes in food access. For this purpose, we analysed data collected from the same 53 upland and floodplain mestizo households in Ucayali, Peru, in 2000 and 2015. We found an emerging transition towards less diversified food access coupled with loss of forest cover and reduced agricultural biodiversity.
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Library ResourceReports & ResearchDecember, 2015Kenya
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Library ResourceReports & ResearchMarch, 2010
Sustainable economic development is essential for hundreds of millions of poor households in rural areas. This book represents a merger of environmental science and rural development economics. It elucidates the linkage between rational choice theory and theories on land use change. It builds a quantitative framework to connect the environmental method of Material Flow Analysis to basic issues of rural development such as agricultural intensification and food security.
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Library ResourceReports & ResearchDecember, 2007Netherlands, Uruguay
It has been argued that the management of land, whether at the field, farm or regional scale, can benefit from computer-based land use system analysis. As a result, a large number of computer-based models and tools have been produced over the past decades with the aim of providing support to policy and management. Though there is still optimism about the potential of land use modelling to contribute to societal problem solving, a number of scholars perceive the impact as too limited.
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Library ResourceReports & ResearchDecember, 2003
De implementatie van de Europese Kaderrichtlijn Water (KRW) is in Nederland de verantwoor-delijkheid van VenW. Omdat de KRW gevolgen kan hebben voor de beleidsterreinen van LNV heeft zij Alterra gevraagd op zeer korte termijn de mogelijke consequenties van de KRW voor de sectoren landbouw, natuur, recreatie en visserij inzichtelijk te maken. Een scenariostudie: op basis van expert-kennis zijn een viertal scenario’s uitgewerkt waarbij alle noodzakelijke stappen om de KRW te realiseren zijn doorlopen.
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Library ResourceReports & ResearchDecember, 2003
Soil erosion by water is an old problem in Ethiopia. The prevalence of mountainous and undulating landscapes, coupled with the expansion of arable farming on steep areas due to population pressure have aggravated the soil erosion problem in the country. Prompted by one of the great famines in the country in 1973, the international community and the Ethiopian government began to carry out massive conservation measures that covered extensive areas. Since then, the conservation movement has continued.
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Library ResourceReports & ResearchDecember, 1999Netherlands
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