Food insecurity, soil fertility depletion and strong competition for biomass are commonly observed in smallholder crop-livestock systems. The objective of this study was to explore options to improve farm-level nitrogen cycling, productivity and economic performance through the analysis of N flow...
Álvarez, S.
,
Rufino, Mariana C.
,
Vayssières, Jean-François
,
Salgado, P.
,
Tittonell, Pablo A.
,
Tillard, E.
,
Bocquier, F.
,
[Whole-farm nitrogen cycling and intensification of crop-livestock systems in the highlands of Madagascar: An application of network analysis]
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Whole-farm nitrogen cycling and intensification of crop-livestock systems in the highlands of Madagascar: An application of network analysis
Few field studies examine greenhouse gas (GHG) emissions from African agricultural systems resulting in high uncertainty for national inventories. We provide here the most comprehensive study in Africa to date, examining annual CO2, CH4 and N2O emissions from 59 plots, across different vegetation...
Pelster, David E.
,
Rufino, Mariana C.
,
Rosenstock, Todd S.
,
Mango, Joash
,
Saiz, G.
,
Díaz Pinés, Eugenio
,
Baldi, G.
,
Butterbach-Bahl, Klaus
,
[Smallholder African farms in western Kenya have limited greenhouse gas fluxes]
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Smallholder African farms in western Kenya have limited greenhouse gas fluxes
Western Kenya is one of Africa’s most densely populated rural areas, characterised by intensive smallholder crop–livestock systems on degraded lands managed with small inputs of mineral fertiliser and animal manure. Competing uses for crop residues and other organic resources often results in poo...
Castellanos-Navarrete, A.
,
Tittonell, Pablo A.
,
Rufino, Mariana C.
,
Giller, Ken E.
,
[Feeding, crop residue and manure management for integrated soil fertility management—A case study from Kenya]
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Feeding, crop residue and manure management for integrated soil fertility management—A case study from Kenya
In West Africa predictions of future changes in climate and especially rainfall are highly uncertain, and up to now no long-term analyses are available of the effects of climate on crop production. This study analyses long-term trends in climate variability at N’Tarla and Sikasso in southern Mali...
Traoré, B.
,
Corbeels, Marc
,
Wijk, Mark T. van
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Rufino, Mariana C.
,
Giller, Ken E.
,
[Effects of climate variability and climate change on crop production in southern Mali]
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Effects of climate variability and climate change on crop production in southern Mali
Vulnerability analysis is essential for targeting adaptation options to impacts of climate variability and change, particularly in diverse systems with limited resources such as smallholder farms in sub-Saharan Africa. To investigate the nature and sources of vulnerability of smallholder farmers ...
Rurinda, J.P.
,
Mapfumo, Paul
,
Wijk, Mark T. van
,
Mtambanengwe, F.
,
Rufino, Mariana C.
,
Chikowo, Regis
,
Giller, Ken E.
,
[Sources of vulnerability to a variable and changing climate among smallholder households in Zimbabwe: A participatory analysis]
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Sources of vulnerability to a variable and changing climate among smallholder households in Zimbabwe: A participatory analysis
Reducing greenhouse gas (GHG) emissions from agriculture has become a critical target in national
climate change policies. More than 80% of the countries in Sub-Saharan Africa (SSA) refer to the
reduction of agricultural emissions, including livestock, in their nationally determined contribution
...
Brandt, Patric
,
Harold, Martin
,
Rufino, Mariana C.
,
[The contribution of sectoral climate change mitigation options to national targets: a quantitative assessment of dairy production in Kenya]
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The contribution of sectoral climate change mitigation options to national targets: a quantitative assessment of dairy production in Kenya
This study aims to explain effects of soil textural class, topography, land use, and land use history on soil greenhouse gas (GHG) fluxes in the Lake Victoria region. We measured GHG fluxes from intact soil cores collected in Rakai, Uganda, an area characterized by low‐input smallholder (<2 ha) f...
Wanyama, Ibrahim
,
Rufino, Mariana C.
,
Pelster, David E.
,
Wanyama, George N.
,
Atzberger, Clement
,
Asten, Piet J.A. van
,
Verchot, Louis V.
,
Butterbach-Bahl, Klaus
,
[Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands]
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Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands
In communal areas of NE Zimbabwe, feed resources are collectively managed, with herds grazing on grasslands during the rainy season and mainly on crop residues during the dry season, which creates interactions between farmers and competition for organic resources. Addition of crop residues or ani...
Rufino, Mariana C.
,
Dury, J.
,
Tittonell, Pablo A.
,
Wijk, Mark T. van
,
Herrero, Mario T.
,
Zingore, Shamie
,
Mapfumo, Paul
,
Giller, Ken E.
,
[Competing use of organic resources, village-level interactions between farm types and climate variability in a communal area of NE Zimbabwe]
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Competing use of organic resources, village-level interactions between farm types and climate variability in a communal area of NE Zimbabwe
Conversion of natural forest to other land uses could lead to significant changes in catchment hydrology, but the nature of these changes has been insufficiently investigated in tropical montane catchments, especially in Africa. To address this knowledge gap, we identified stream water sources an...
Jacobs, S.R.
,
Timbe, E.
,
Weeser, B.
,
Rufino, Mariana C.
,
Butterbach-Bahl, Klaus
,
Breuer, L.
,
[Land use alters dominant water sources and flow paths in tropical montane catchments in East Africa]
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Land use alters dominant water sources and flow paths in tropical montane catchments in East Africa