Working Document Series Open Access Enhancing climate resilience of cropping systems: A synopsis of research activities by crop scientists at University of Nairobi G.N. Chemining’wa · O.M. Kitonyo Climate change is associated with rising temperatures, elevated carbon dioxide, variable rainfall patterns and frequent droughts, reduced soil carbon and mineral nutrients, and increased influx of pests and diseases, in addition to adverse… RUF-39096 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Enhancing climate resilience of cropping systems: A synopsis of research activities by crop scientists at University of Nairobi G. Chemining’wa · O. M. Kitonyo Climate change is associated with rising temperatures, elevated carbon dioxide, variable rainfall patterns and frequent droughts, reduced soil carbon and mineral nutrients, and increased influx of pests and diseases, in addition to adverse… RUF-38906 2018 CC BY 4.0 16 Dec 2020
Working Document Series Open Access Soil properties effects and management of organic residues to improve C sequestration, reduce N losses and improve crop yields B.O. Danga · Z. Getenga · B. Mochoge · J. Mugwe Rates of decomposition of organic materials in soil determine the amount of carbon (C) which is mineralized and released as CO2 versus the amount of C that is retained in various forms in the soil. Decomposition rates also greatly influenc… RUF-35037 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access Performance of a natural draft briquette-gas stove for domestic use H. Mulindi · S. Okwach · T. Thoruwa Biomass as a source of energy supplies close to 68% of the total energy demand in Kenya. The stoves used to burn these biomass fuels are characterized by high inefficiencies and high emissions posing environmental risks to the Kenyan fores… RUF-34979 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access The determinants of fuelwood demand: A case of Olio sub-county eastern Uganda A. Egeru · P. Isubikalu · E. Katerega · J.G.M. Majaliwa +1 more This study investigated the determinants of fuelwood demand, estimated the elasticity of the determinants, and determined changes in land use/cover and its effect on biomass dynamics. It also documented fuelwood scarcity coping strategies.… RUF-34854 2010 CC BY 4.0 14 Sep 2015
Working Document Series Open Access Effect of land-use and climate change and variability on pollution loading in rivers of eastern Uganda and albertine rift P. Isubikalu · J.G.M. Majaliwa · P. Mukwaya Climate change and variability is one of the major environmental challenges that are likely to affect the livelihood of mankind for a very long time. At local scale, global climate change and variability trends can be amplified by Land use… RUF-34776 2010 CC BY 4.0 11 Sep 2015
Working Document Series Open Access Effect of land use and cover change on carbon stock and water quality of River Atari in Kapchorwa-Uganda F. Kansiime · J.G.M. Majaliwa · J. Sirike The objective of this study was to examine the trend in landuse/ cover change around Atari micro-catchment and determine the effect of these changes on carbon stock and Atari river water quality. An Earth Resources Data Analysis System (ER… RUF-34698 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Assessment of soil and landform characteristics for implementation of conservation agriculture in West Usambara Mountains, Lushoto District, Tanzania D. Kimaro · L.A. Kyaruzi · H.B. Msita Developing strategies that promote conservation agriculture in the West Usambara Mountains in Tanzania poses a particular challenge. This research used empirical and qualitative method to assess soil and landform characteristics in relatio… RUF-34613 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Impact of landuse change on soil carbon stocks and livelihoods of communities on Mt. Elgon region, Uganda S. Balaba Tumwebaze · M. Buyinza · C. M. Nantumbwe · M. M. Tenywa There is inadequate knowledge on the form of soil organic carbon (SOC) pools and fluxes that are affected by land use change. Hence, there is a need to understand how soil organic carbon is affected by land use change and how these impacts… RUF-34544 2010 CC BY 4.0 26 Aug 2015
Working Document Series Open Access Carbon stock trends in selected agro ecological zones of Uganda E. Adipala · P. Isubikalu · J.G.M. Majaliwa · P. Mukwaya +1 more This study determined the trend in carbon densities and stocks from major land uses/covers of semi arid and sub humid areas of Uganda. Carbon densities were estimated from soils and woody biomass pools of the major homogenous units in term… RUF-34525 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Climate variability and Tillage practices: Effect on soil moisture, carbon dynamics and crop productivity in semi arid Zimbabwe J. Keter · J. M. Kinama · R. Moyo · I. Nyagumbo +1 more To improve on low yields of rainfed agriculture which are a result of soil degradation, low fertility and low moisture levels in semi-arid areas and increased climatic variability due to climate change, conservation agriculture (CA) is bei… RUF-34505 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Isolation and characterisation of Chilembwe and Sinda rock phosphate solubilising soil microorganisms A. P. Armstrong · G. Chilombo · E. A. Eckhardt · A. Mutiti Mweetwa +3 more The availability of native phosphorus in most Zambian agricultural soils is relatively low. This necessitates the use of organic and inorganic fertilizers for crop production. There are several deposits of rock phosphate in Zambia that can… RUF-34020 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Land use change effect on carbon stocks in western Uganda J.G.M. Majaliwa · H. Makuma-Massa · D. Mfutumikiza · C. Nandozi +1 more This study was conducted in Fortportal Municipality, Kabarole District of Western Uganda to find out the effect of land use change on carbon stocks between 1973 and 2000. Landsat series of 1973, 1986 and 2000 of Fortportal municipality wer… RUF-33909 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Rainfall Trends, Soil Organic Carbon and N15 Isotope Status in Selected Wetlands in Lesotho R. Mating · T. Nkheloane · A.O. Olaleye This research was carried out in Lesotho to characterize the SOC pool in three different agro-ecological zones of Lesotho. Specific objectives of this research are: (i) to determine the effect of land use on SOC pool; (ii) to establish the… RUF-32417 2012 CC BY 4.0 16 May 2014
Working Document Series Open Access Impact of Land Use/Cover Change on Soil Carbon Stocks, Livelihoods and Opportunities for Mitigation in Mt. Elgon Region S. Balaba Tumwebaze The study was conducted to assess community perception on landuse/cover change and its impact on the their livelihood. Knowledge on community copping strategies in improving and maintaining soil carbon levels was also investigated. Analysi… RUF-32262 2012 CC BY 4.0 16 May 2014
Working Document Series Open Access Spatial Variation of Soil Organic Carbon under the Linear Simultaneous Agroforestry System S. Balaba Tumwebaze · E. Bevilacqua · Russell Briggs · T. Volk Most research on spatial variability of soil organic carbon (SOC) has been conducted in forest and grassland soils, but no research has been conducted on agroforestry soils. Knowledge about the variability of SOC can assist in generating e… RUF-32256 2012 CC BY 4.0 15 May 2014
Working Document Series Open Access Short-Term Effects of Soil Fertility, Tillage and Residue Management on Soil Organic Carbon, Aggregate Stability and Water Infiltration on a Sandy Soil in Urban Agriculture, Harare S. Madyiwa · J. Nyamangara · B. Nyamasoka · P. Nyamugafata +1 more Manure is a key nutrient resource to urban farmers due to its multiple benefits, especially on inherently infertile sandy soils. Research on cattle manure in sub-Saharan Africa has mainly focused on its role in supplying N required by crop… RUF-32009 2012 CC BY 4.0 13 May 2014
Working Document Series Open Access Utilisation and Conservation of Shea Butter Trees (Vitellaria Paradoxa) in and Around Aloi Internally Displaced Persons’ Camps in Lira District, Northern Uganda W. Alum · J. Obua · J.B.L. Okullo · B. Ongom +1 more Influence of internal displacement on utilisation and conservation of shea butter trees was studied in Aloi sub-county, Moroto County, Lira district between 2007 and 2008. Sixty respondents were randomly selected and interviewed. These wer… RUF-31981 2012 CC BY 4.0 13 May 2014
Theses & Dissertations Open Access Impact of Tree Species on Maize Productivity by Smallholder Farmers in Eastern Kenya Elton Ndlovu Low maize productivity due to declining soil fertility is a major problem faced by smallholder farmers in Eastern Highlands of Kenya. Adoption of agroforestry which has a huge potential to halt land degradation on farms is however, very lo… RUF-31729 2013 CC BY 4.0 7 Apr 2014
