Most of the population in sub-Saharan Africa depends on agriculture for livelihood, which is mainly practiced by resource-constrained smallholder farmers. Due to persistent low crop yields, food and nutrition insecurity, farmers have been opening new lands through deforestation or encroachment in...
Masso, C.
,
Nziguheba, Generose
,
Mutegi, J.
,
Galy-Lacaux, C.
,
Wendt, J.
,
Butterbach-Bahl, Klaus
,
Wairegi, L.W.I.
,
Datta, A.
,
[Soil fertility management in sub-Saharan Africa]
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Soil fertility management in sub-Saharan Africa
Studies that quantify nitrous oxide (N2O) fluxes from African tropical forests and adjacent managed land uses are scarce. The expansion of smallholder agriculture and commercial agriculture into the Mau forest, the largest montane forest in Kenya, has caused large-scale land use change over the l...
Wanyamaa, I.
,
Pelster, David E.
,
Arias-Navarro, Cristina
,
Butterbach-Bahl, Klaus
,
Verchot, Louis V.
,
Rufino, Mariana C.
,
[Management intensity controls soil N2O fluxes in an Afromontane ecosystem]
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Management intensity controls soil N2O fluxes in an Afromontane ecosystem
Semi-arid lands represent one fifth of the global land area but our understanding of greenhouse gas fluxes from these regions is poor. We investigated if inclusion of a grain legume and/or lime in a crop rotation altered greenhouse gas emissions from an acidic soil. Nitrous oxide (N2O) and methan...
Barton, L.
,
Murphy, D.V.
,
Butterbach-Bahl, Klaus
,
[Influence of crop rotation and liming on greenhouse gas emissions from a semi-arid soil]
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Influence of crop rotation and liming on greenhouse gas emissions from a semi-arid soil
Although it is well established that soils are the dominating source for atmospheric nitrous oxide (N2O), we are still struggling to fully understand the complexity of the underlying microbial production and consumption processes and the links to biotic (e.g. inter- and intraspecies competition, ...
Butterbach-Bahl, Klaus
,
Baggs, E.M.
,
Dannenmann, M.
,
Kiese, Ralf
,
Zechmeister-Boltenstern, S.
,
[Nitrous oxide emissions from soils: How well do we understand the processes and their controls?]
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Nitrous oxide emissions from soils: How well do we understand the processes and their controls?
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
Availability of suitable feed, and in particular sources of protein-rich food, is a major constraint to increasing the productivity of smallholders in sub-Saharan Africa it is difficult to justify diverting land from growing crops for human consumption. The roots of the sweet potato are a high en...
Goopy, John P.
,
Gakige, J.
,
Korir, D.
,
Kvacic, M.
,
Butterbach-Bahl, Klaus
,
[Vines of the sweet potato (Ipomea batatas): A valuable feed supplement for ruminants in small holder systems]
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Vines of the sweet potato (Ipomea batatas): A valuable feed supplement for ruminants in small holder systems
This book can be downloaded from the publisher's website.
Agriculture in tropical developing countries produces about 7–9 % of annual anthropogenic greenhouse gas (GHG) emissions and contributes to additional emissions through land-use change (Smith et al. 2014). At the same time, nearly 70 % of...
Rosenstock, Todd S.
,
Rufino, Mariana C.
,
Butterbach-Bahl, Klaus
,
Wollenberg, Eva K.
,
Richards, Meryl
,
[Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture]
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Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture
Measurements of nutrient stocks and greenhouse gas (GHG) fluxes are typically collected at very local scales (<1 to 30 m2) and then extrapolated to estimate impacts at larger spatial extents (farms, landscapes, or even countries). Translating point measurements to higher levels of aggregation is ...
Rosenstock, Todd S.
,
Rufino, Mariana C.
,
Chirinda, Ngonidzashe
,
Bussel, Lenny G. J. van
,
Reidsma, Pytrik
,
Butterbach-Bahl, Klaus
,
[Scaling point and plot measurements of greenhouse gas fluxes, balances, and intensities to whole farms and landscapes]
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Scaling point and plot measurements of greenhouse gas fluxes, balances, and intensities to whole farms and landscapes
In vivo determination of digestible organic matter (dOM) and metabolisable energy (ME) concentrations of feeds is laborious and expensive, whereas analysis of their nutrient contents is routinely performed. Prediction equations based on the chemical composition of feeds can be a compromise. This ...
Onyango, A.
,
Dickhoefer, Uta
,
Butterbach-Bahl, Klaus
,
Goopy, John P.
,
[Digestibility and metabolizable energy of selected tropical feedstuffs estimated by in vitro and prediction equations]
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Digestibility and metabolizable energy of selected tropical feedstuffs estimated by in vitro and prediction equations
Na Wang
,
Quesada, Benjamin
,
Longlong Xia
,
Butterbach-Bahl, Klaus
,
Goodale, Christine L.
,
Kiese, Ralf
,
[Effects of climate warming on carbon fluxes in grasslands— A global meta‐analysis]
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Effects of climate warming on carbon fluxes in grasslands— A global meta‐analysis