Search Results - "de Graaff, Jan"

Determinants of adoption and continued use of stone terraces for soil and water conservation in an Ethiopian highland watershed by Amsalu, Aklilu, de Graaff, Jan

“…In the Ethiopian highlands, land degradation resulting from soil erosion and nutrient depletion is a serious environmental and socio-economic problem. Although…”
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Scaling Limits in Divisible Sandpiles: A Fourier Multiplier Approach by Cipriani, Alessandra, de Graaff, Jan, Ruszel, Wioletta M.

“…In this paper we investigate scaling limits of the odometer in divisible sandpiles on d -dimensional tori following up the works of Chiarini et al. (Odometer…”
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The role of EU agri-environmental measures preserving extensive grazing in two less-favoured areas in Portugal by Jones, Nádia, Duarte, Filomena, Rodrigo, Isabel, van Doorn, Anne, de Graaff, Jan

“…•We analysed the effects of two agri-environmental measures in two areas in Portugal.•These measures are aimed at preserving permanent pasture and extensive…”
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Financial viability of soil and water conservation technologies in northwestern Ethiopian highlands by Teshome, Akalu, Rolker, Dirk, de Graaff, Jan

“…Soil erosion by water is a major threat to food security, environmental sustainability and prospects for rural development in Ethiopia. Successive governments…”
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Monitoring and Evaluation of Soil Conservation and Watershed Development Projects by Graaff, J. de

“…with assistance from Annemarieke de Bruin Wageningen University and Research Centre, The Netherlands…”
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Conserving natural resources in olive orchards on sloping land: Alternative goal programming approaches towards effective design of cross-compliance and agri-environmental measures by Fleskens, Luuk, Graaff, Jan de

“…Olive farming on sloping land in southern Europe is facing multiple challenges and it is reasonable to believe that farmers will opt for the abandonment of…”
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The future of olive groves on sloping land and ex-ante assessment of cross compliance for erosion control by de Graaff, Jan, Duarte, Filomena, Fleskens, Luuk, de Figueiredo, Tomás

“…Under the past Common Agricultural Policy (CAP) olive oil subsidy regime, farmers were eligible for subsidies on the basis of the amount of olive oil they…”
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Coffee Farming and Soil Management in Rwanda by Nzeyimana, Innocent, Hartemink, Alfred E., de Graaff, Jan

“…Agriculture is the cornerstone of Rwanda's economy. The authors review how the sector has changed and specifically what soil management practices are now being…”
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Torsion of the ovary: a known but frequently missed diagnosis by Becker, Jeroen Hubert, Graaff, Jan de, Vos, Caroline M

“…Torsion of the ovary or fallopian tube is a rare acute gynaecological disorder, seen by different medical specialists. The diverse clinical presentation is one…”
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Olive production systems on sloping land: Prospects and scenarios by de Graaff, Jan, Duran Zuazo, Victor-Hugo, Jones, Nádia, Fleskens, Luuk

“…The ultimate objective of the EU Olivero project was to improve the quality of life of the rural population and to assure the sustainable use of the natural…”
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A sustainable future for olive production on sloping land? by Fleskens, Luuk, de Graaff, Jan

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Long-term dynamics in land resource use and the driving forces in the Beressa watershed, highlands of Ethiopia by Amsalu, Aklilu, Stroosnijder, Leo, Graaff, Jan de

“…Land degradation in the Ethiopian highlands is considered to be one of the major problems threatening agricultural development and food security in the…”
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Farmers’ Visions on Soils: A Case Study among Agroecological and Conventional Smallholders in Minas Gerais, Brazil by Klingen, Klarien Elisabeth, Graaff, Jan De, Botelho, Maria Izabel Vieira, Kessler, Aad

“…Purpose: Why do farmers not take better care of their soils? This article aims to give insight into how farmers look at soil quality management…”
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The impact of crime on apartment prices in Hamburg, Germany by de Graaff, Jan, Zietz, Joachim

“…PurposeThe purpose of this study is to examine the impact of crime on apartment prices for Hamburg, Germany, for the years 2012 to…”
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Household-Level Determinants of Soil and Water Conservation Adoption Phases: Evidence from North-Western Ethiopian Highlands by Teshome, Akalu, de Graaff, Jan, Kassie, Menale

“…Soil and water conservation (SWC) practices have been promoted in the highlands of Ethiopia during the last four decades. However, the level of adoption of SWC…”
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Farmers' Perceptions about the Influence of Land Quality, Land Fragmentation and Tenure Systems on Sustainable Land Management in the North Western Ethiopian Highlands by Teshome, Akalu, de Graaff, Jan, Ritsema, Coen, Kassie, Menale

“…Land is a scarce resource in the highlands of Ethiopia. Its sustainable use is highly affected by bio‐physical and institutional factors. The purpose of this…”
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Understanding the impact and adoption of conservation agriculture in Africa: A multi-scale analysis by Corbeels, Marc, de Graaff, Jan, Ndah, Tim Hycenth, Penot, Eric, Baudron, Frederic, Naudin, Krishna, Andrieu, Nadine, Chirat, Guillaume, Schuler, Johannes, Nyagumbo, Isaiah, Rusinamhodzi, Leonard, Traore, Karim, Mzoba, Hamisi Dulla, Adolwa, Ivan Solomon

“…•Regular crop yield benefits from conservation agriculture (CA) take time to occur.•CA has a potential to mitigate negative effects from climate change.•The…”
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Investments in land management in the north-western highlands of Ethiopia: The role of social capital by Teshome, Akalu, de Graaff, Jan, Kessler, Aad

“…⿢Agro-economic surveys were undertaken in three watersheds in Ethiopian highlands.⿢Factor analysis reduces the social capital variables into six non-correlated…”
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Historical review of land use changes in Portugal (before and after EU integration in 1986) and their implications for land degradation and conservation, with a focus on Centro and Alentejo regions by Jones, Nádia, de Graaff, Jan, Rodrigo, Isabel, Duarte, Filomena

“…Changes in land use and production systems are to a large extent responsible for land degradation. In Portugal this process has been triggered mainly by…”
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Agriculture and food security in selected countries in Sub-Saharan Africa: diversity in trends and opportunities by de Graaff, Jan, Kessler, Aad, Nibbering, Jan Willem

“…The World Food Summit in 1996 set the goal of reducing by half the numbers of malnourished people in the world by 2015. It is unlikely that this will be…”
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