A review on nitrogen flows and obstacles to sustainable nitrogen management within the Lake Victoria Basin, East Africa

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.affiliationKenyatta Universityen_US
cg.contributor.affiliationLake Victoria Basin Commission, Kenyaen_US
cg.contributor.affiliationSustainable Tropical Actions, Cameroonen_US
cg.contributor.affiliationInternational Institute of Tropical Agricultureen_US
cg.contributor.donorUnited Nations Environment Programmeen_US
cg.contributor.donorGlobal Environment Facilityen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.coverage.countryKenyaen_US
cg.coverage.countryBurundien_US
cg.coverage.countryUgandaen_US
cg.coverage.countryRwandaen_US
cg.coverage.countryTanzaniaen_US
cg.coverage.iso3166-alpha2KEen_US
cg.coverage.iso3166-alpha2BIen_US
cg.coverage.iso3166-alpha2UGen_US
cg.coverage.iso3166-alpha2RWen_US
cg.coverage.iso3166-alpha2TZen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.creator.identifierCargele Masso: 0000-0002-3980-6832en_US
cg.creator.identifierMartin YEMEFACK: 0000-0002-6709-8503en_US
cg.creator.identifierbernard vanlauwe: 0000-0001-6016-6027en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.3390/su16114816en_US
cg.identifier.iitathemeNATURAL RESOURCE MANAGEMENTen_US
cg.isijournalISI Journalen_US
cg.issn2071-1050en_US
cg.issue11: 4816en_US
cg.journalSustainabilityen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.iitaNATURAL RESOURCE MANAGEMENTen_US
cg.subject.impactAreaEnvironmental health and biodiversityen_US
cg.subject.impactPlatformEnvironmental Health and Biodiversityen_US
cg.subject.sdgSDG 1 - No povertyen_US
cg.subject.sdgSDG 2 - Zero hungeren_US
cg.volume16en_US
dc.contributor.authorMasso, Cargeleen_US
dc.contributor.authorGweyi-Onyango, J.en_US
dc.contributor.authorLuoga, H.P.en_US
dc.contributor.authorYemefack, M.en_US
dc.contributor.authorVanlauwe, Bernarden_US
dc.date.accessioned2024-06-24T15:00:27Zen_US
dc.date.available2024-06-24T15:00:27Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/148683en_US
dc.titleA review on nitrogen flows and obstacles to sustainable nitrogen management within the Lake Victoria Basin, East Africaen_US
dcterms.abstractThe Lake Victoria Basin (LVB) is located in the upper reaches of the Nile River Basin and is shared by five East-African countries. The population in the catchment is growing rapidly and the lake is facing several environmental problems. During the past few decades, numerous efforts have been made across the five countries, with the coordination of the Lake Victoria Basin Commission (LVBC) to reduce the loading of reactive nitrogen (Nr) into the lake and Lake Watershed. However, most of the measures envisaged to ensure long-term sustainable N management are not as easily adopted as planned. This paper reports on a review study on N flows and obstacles in achieving sustainable N management in the LVB, with the objectives of improving the understanding of the N cycle and examining the N management practices and policies that can help reduce the loss of Nr in the region. The scientific literature related to a range of N flows, N management obstacles, and options to overcome obstacles has been analyzed using N prospects developed at the global level for their potential applicability across the LVB. The study showed that an unbalanced use of N input is a serious threat to agricultural productivity leading to extreme soil N mining and degradation, with the majority of LVB farms operating within negative N balances and above the safe operating boundary for N in production systems. From the projections in N input as recommended by various stakeholders, there would likely be changes in both current yield and N use efficiency (NUE) values; however, most small-scale farmers will continue to experience low yields, which remains a challenge for food security in the area. These results suggest that scientists as well as those involved in decision-making and policymaking processes should formulate new targets for fertilizer increment to reduce the yield gap for sustainability, focusing on more integrated soil fertility as a package for nutrient management in cropping systems.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceScientistsen_US
dcterms.available2024-06-05en_US
dcterms.bibliographicCitationMasso, C., Gweyi-Onyango, J., Luoga, H.P., Yemefack, M. & Vanlauwe, B. (2024). A review on nitrogen flows and obstacles to sustainable nitrogen management within the Lake Victoria Basin, East Africa. Sustainability, 16(11): 4816, 1-21.en_US
dcterms.descriptionOpen Access Journalen_US
dcterms.extent1-21en_US
dcterms.issued2024en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherMDPI AGen_US
dcterms.subjectnitrogenen_US
dcterms.subjectmanagementen_US
dcterms.subjecteast africaen_US
dcterms.typeJournal Articleen_US

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