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Examines the effects of large-scale biofuel production, seen as having a positive impact on African national economies and greenhouse gases. Finds negative implications as well, especially in developmental and environmental areas.

National wealth --- Third World: agricultural and food problems --- Africa --- Energy crops industry --- Land use, Rural --- Food security --- Biofuels. --- Natural resources. --- Food security. --- Africa. --- Biobränslen --- Naturresurser --- Social Sciences and Humanities. Economics --- Social aspects --- Environmental Economics --- Natural Resource Economics. --- Rural land use --- Land use --- Agriculture --- Food deserts --- Food insecurity --- Insecurity, Food --- Security, Food --- Human security --- Food supply --- Agricultural industries --- Biomass energy industries --- Biomass energy --- Development studies --- Fuels --- Natural resources --- Renewable energy sources --- Energy crops --- Industrial crops --- Foreign investment --- Agricultural investment --- Land acquisition --- Rural areas --- Rural population --- Smallholders --- Agricultural land --- Land tenure --- Agricultural policy --- Property rights --- Africa south of Sahara --- Biocarburants --- Aliments --- Sol, Utilisation agricole du --- Propriété foncière --- Aspect social --- Afrique noire --- 1960-.... --- Approvisionnement

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The bioeconomy concept aims to add sustainability to the production, transformation, and trade of biological goods. Though implemented around the world, the development of national bioeconomies is uneven, especially in the global South, where major challenges exist in Sub-Saharan Africa. In this context, the international BiomassWeb project aimed to underpin the bioeconomy concept by applying the value web approach, which seeks to uncover complex interlinked value webs instead of linear value chains. The project also aimed to develop intervention options to strengthen and optimize the synergies and trade-offs among different value chains. The Special Issue “Advances in Food and Non-Food Biomass Production, Processing and Use in Sub-Saharan Africa: Toward a Basis for a Regional Bioeconomy"" compiles 23 articles produced in this framework. The articles are grouped in four sections: the value web approach; the production side; processing, transformation and trade; and global views.

value addition --- cassava variants --- Biomass --- pollution --- welfare --- biomass scenarios --- equity --- bio-based --- husk --- bioproductivity --- transdisciplinary research --- groundnut --- land-use --- mucilage --- fiber --- corncob --- neighborhoods --- mixed methods --- crop residue --- impact --- Ghana --- germination --- bamboo --- rural development --- multipurpose tree on farmland --- knowledge-based bioeconomy --- multi-functionality --- access --- value chain --- availability --- development policy --- biomass utilization --- homegarden --- adoption --- primary sector --- cluster analysis --- Nigeria --- food bearing --- innovation --- CGE --- value web --- biomass --- bioenergy --- comparative advantage --- maize --- Policy Analysis Matrix --- basic needs --- multistorey coffee system --- collaboration --- solid waste --- traditional agroforestry --- amylose --- edible --- pulp --- governance --- intensification options --- parchment --- green economy --- farmland --- value-added --- renewable energy --- endogenous switching regression --- smallholders --- food and non-food benefit --- crop model --- carotenoids retention --- family farming --- contract farming --- contract design --- richness --- development --- biological goods --- soil amendment --- Biomass-based value web --- sustainability --- deforestation --- sustainable development --- typology --- cassava smallholders --- push–pull technology --- circular economy --- methane --- Ethiopia --- willingness to pay --- cassava farmers --- biochar --- Yayu Biosphere Reserve --- bioeconomy --- bio-based economy --- food and non-food --- self-purging pyrolysis --- productivity --- demand-driven research --- cassava --- leadership --- probit --- intragenerational justice --- fairness --- productivity differentials --- technology --- high-tech bioeconomy --- cassava processors --- intensity --- phytotoxicity --- global biomass --- food security --- cassava processing --- yellow cassava --- plantain residues --- fertilizer-yield-response

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As a dynamic interface between agriculture and forestry, agroforestry has only recently been formally recognized as a relevant part of land use with ‘trees outside forest’ in important parts of the world—but not everywhere yet. The Sustainable Development Goals have called attention to the need for the multifunctionality of landscapes that simultaneously contribute to multiple goals. In the UN decade of landscape restoration, as well as in response to the climate change urgency and biodiversity extinction crisis, an increase in global tree cover is widely seen as desirable, but its management by farmers or forest managers remains contested. Agroforestry research relates tree–soil–crop–livestock interactions at the plot level with landscape-level analysis of social-ecological systems and efforts to transcend the historical dichotomy between forest and agriculture as separate policy domains. An ‘ecosystem services’ perspective quantifies land productivity, flows of water, net greenhouse gas emissions, and biodiversity conservation, and combines an ‘actor’ perspective (farmer, landscape manager) with that of ‘downstream’ stakeholders (in the same watershed, ecologically conscious consumers elsewhere, global citizens) and higher-level regulators designing land-use policies and spatial zoning.

carbon storage --- cacao agroforestry --- farmer tree preference --- utility value --- entrainment --- erosion --- forest conversion --- overland flow --- soil macroporosity --- throughfall --- water balance --- boundary work --- ecohydrology --- forest–water–people nexus --- landscape approach --- participatory methods --- scenario evaluation --- social-ecological systems --- tropical forests --- assisted natural regeneration (ANR) --- co-investment --- ecosystem services --- environmental stewardship --- equity --- forest and landscape restoration (FLR) --- rights-based approach --- tree planting --- water --- coffee --- fruit trees --- index of root anchoring --- slope stability --- soil shear strength --- root length density --- root tensile strength --- agroforestry --- carbon sequestration --- climate change mitigation --- grazing management --- land restoration --- nationally determined contribution --- silvopastoral --- tree cover --- cocoa agroforestry --- climate adaptation --- soil restoration --- soil organic carbon --- soil macro-porosity --- soil water availability --- inceptisols --- Fraxinus dimorpha --- soil chemical characteristics --- mycorrhizal attributes --- traditional ecological knowledge --- anastomosis --- agroforest --- silvopasture --- economics --- financial analysis --- carbon payment --- Peru --- innovation transfer --- trimming --- intention --- participatory and integrative research-extension --- stakeholders --- adaptation --- Kisumu --- Bungoma --- payment for ecosystem services --- village savings and loan associations --- fruit tree-based agroforestry --- economic benefits --- farmer perspectives --- resource competition --- systems improvement --- uptake and expansion --- cost-benefit analysis --- landscape restoration --- global --- stocktake --- agroforestry coffee --- shade tree species --- pairwise ranking --- Vietnam --- trees on farm --- options by context --- on-farm planned comparison --- tree seedling survival --- agriculture sector --- cost efficiency --- land suitability --- potential expansion areas --- representative concentration pathway --- cocoa --- Java --- livelihoods --- rural–urban --- remittances --- returning migrants --- Sumatra --- Sulawesi --- certification --- deforestation --- palm oil --- forest classification --- Jambi --- legality --- independent smallholders --- agroforestry concessions --- West Kalimantan --- land-use change --- belowground biodiversity --- soil engineers --- Pontoscolex corethrurus --- natural habitats --- planted forest --- artesian wells --- Oryza --- paddy cultivation --- restoration --- rodents --- sustainable intensification --- Mount Bromo-Tengger --- coinvestment --- instrumental values --- landscape --- relational values --- social–ecological systems --- stewardship --- sustainable development goals (SDGs) --- trees --- n/a --- forest-water-people nexus --- rural-urban