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Climate change will have far-reaching impacts on crop, livestock and fisheries production, and will change the prevalence of crop pests. Many of these impacts are already measurable. Climate impact studies are dominated by those on crop yields despite the limitations of climate-crop modelling, wi...


Campbell, Bruce M.Vermeulen, Sonja J.Aggarwal, Pramod K.Corner-Dolloff, CaitlinGirvetz, Evan H.Loboguerrero Rodriguez, Ana MaríaRamírez Villegas, JuliánRosenstock, Todd S.Sebastian, Leocadio S.Thornton, Philip K.Wollenberg, Eva K.[Reducing risks to food security from climate change]Reducing risks to food security from climate change

Livestock keeping is ubiquitous in tropical Africa. Urine and dung from livestock release greenhouse gases (GHGs), such as nitrous oxide (N2O) and methane (CH4), to the atmosphere. However, the extent of GHG’s impact is uncertain due to the lack of in situ measurements in the region. Here we meas...


Tully, Katherine L.Abwanda, SheilaThiong'o, MargaretMutuo, Paul M.Rosenstock, Todd S.[Nitrous oxide and methane fluxes from urine and dung deposited on Kenyan pastures]Nitrous oxide and methane fluxes from urine and dung deposited on Kenyan pastures

In this paper, we investigate similarities of effects of soil environmental drivers on year-round daily soil fluxes of nitrous oxide and methane for three distinct semi-natural or natural ecosystems: temperate spruce forest, Germany; tropical rain forest, Queensland, Australia; and ungrazed semi-...


Luo, G.J.Kiese, RalfWolf, B.Butterbach-Bahl, Klaus[Effects of soil temperature and moisture on methane uptakes and nitrous oxide emissions across three different ecosystem types]Effects of soil temperature and moisture on methane uptakes and nitrous oxide emissions across three different ecosystem types

Background and aims. The direct measurement of denitrification dynamics and its product fractions is important for parameterizing process-oriented model(s) for nitrogen cycling in various soils. The aims of this study are to a) directly measure the denitrification potential and the fractions of n...


Rui WangQi FengTingting LiaoXunhua ZhengButterbach-Bahl, KlausWei ZhangChunyi Jin[Effects of nitrate concentration on the denitrification potential of a calcic cambisol and its fractions of N2, N2O and NO]Effects of nitrate concentration on the denitrification potential of a calcic cambisol and its fractions of N2, N2O and NO

Elevated greenhouse gas (GHG) emissions, particularly of methane (CH4) from flooded rice production systems contribute to global warming. Different crop management strategies, such as drainage of paddy soils and climate-smart residue management, are essential in order to mitigate GHG emissions fr...


Tariq, AzeemJensen, Lars S.Tourdonnet, Stephane deSander, Bjoern OleNeergaard, Andreas de[Early drainage mitigates methane and nitrous oxide emissions from organically amended paddy soils]Early drainage mitigates methane and nitrous oxide emissions from organically amended paddy soils

Global nitrogen fixation contributes 413 Tg of reactive nitrogen (Nr) to terrestrial and marine ecosystems annually of which anthropogenic activities are responsible for half, 210 Tg N. The majority of the transformations of anthropogenic Nr are on land (240 Tg N yr-1) within soils and vegetation...


Fowler, D.Coyle, M.Skiba, U.Sutton, M.A.Cape, J.N.Reis, S.Sheppard, L.J.Jenkins, A.Grizetti, B.Galloway, J.N.Vitousek, P.Leach, A.Bouwman, A.F.Butterbach-Bahl, KlausDentener, F.Stevenson, D.Amann, M.Voss, M.l.[The global nitrogen cycle in the twenty-first century]The global nitrogen cycle in the twenty-first century

This article examines how the estimated impacts of crop technologies vary with alternate methods and assumptions, and also discusses the implications of these differences for the design of studies to inform research prioritization. Drawing on international potato research, we show how foresight s...


Petsakos, A.Hareau, G.Kleinwechter, U.Wiebe, K.Sulser, T.[Comparing modeling approaches for assessing priorities in international agricultural research]Comparing modeling approaches for assessing priorities in international agricultural research

Studies on the enabling factors for household food security (HFS) most often used simplified econometric models looking into the links with a selected set of variables. In this research, a livelihood approach of HFS was used and aimed at determining the most significant livelihood assets for HFS ...


N’Danikou, S.Vodouhe, R.S.Bellon, M.R.Sidibe, A.Coulibaly, H.[Foraging is determinant to improve smallholders’ food security in rural areas in Mali, West Africa]Foraging is determinant to improve smallholders’ food security in rural areas in Mali, West Africa

Agricultural intensification to meet the food needs of the rapidly growing population in developing countries is negatively affecting the water quality. In most of these countries such as Ethiopia, information on surface and especially groundwater quality is lacking. This limits the measure that ...


Akal, Adugnaw T.Dagnew, D.C.Giri, S.Belete, M.A.Tilahun, Seifu A.Mekuria, Wolde M.Steenhuis, Tammo S.[Groundwater quality in an upland agricultural watershed in the sub-humid Ethiopian Highlands]Groundwater quality in an upland agricultural watershed in the sub-humid Ethiopian Highlands

This article is concerned with the adoption of small-scale irrigation farming as a climate-smart agriculture practice and its influence on household income in the Chinyanja Triangle. Chinyanja Triangle is a region that is increasingly experiencing mid-season dry spells and an increase in occurren...


Mango, NelsonMakate, CliftonTamene, LulsegedMponela, PowellNdengu, Gift[Adoption of Small-Scale Irrigation Farming as a Climate-Smart Agriculture Practice and Its Influence on Household Income in the Chinyanja Triangle, Southern Africa]Adoption of Small-Scale Irrigation Farming as a Climate-Smart Agriculture Practice and Its Influence on Household Income in the Chinyanja Triangle, Southern Africa

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