Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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Critical findings
940 results(7 / 38)
Long-Term Manure Application in Urban Gardens: Impacts on Soil Fertility, Mineral Composition, and Variability
2025Rafael López Núñez, Paula Madejón, José Molina-Vega, Sabina Rossini-Oliva · Horticulturae · Global
This study investigated soil variability in two sections of an urban allotment garden subjected to long-term manure fertilization for 12 or 16 years, with application rates up to 10–12 kg m−2 yr−1. Prolonged manure incorporation enhanced soil fertility, increasing organic carbon, total-N, available-K, and total/available-P, and caused shifts in mineral composition with increases in Ca, inorganic C, Sr, and S. No accumulation of potentially toxic elements was observed, but pronounced spatial heterogeneity emerged among plots, with coefficients of variation up to 58% for S and 47% for Zn.
CompostOrganic cycleCommunityLes sols agricoles urbains
2025Sophie Joimel, Tania DE ALMEIDA, Baptiste Grard · · Global
Urban soils are characterized by high heterogeneity and diverse source materials, leading to a wide range of physical, physicochemical, and biological properties. These soils support diverse forms of urban agriculture and can provide various ecosystem services beyond their productive function.
Organic cycleBiodiversityClimate changeThe role of treated wastewater in fostering sustainable urban agriculture in Addis Ababa, Ethiopia
2025Gizaw Ebissa, Hayal Desta, Aramde Fetene · Discover Water · Ethiopia (Addis Ababa)
This research assessed the contribution of treated wastewater (TW) from Bole-Lemi Industrial Park in Addis Ababa, Ethiopia, to agricultural sustainability over a 3.5-month production season. It found that 53 kg of nitrogen and 1 kg of phosphorus were recovered, saving farmers 5,535 USD and reducing fertilizer costs by 28%. The TW provided 17,500m3 of irrigation water, converting 70 hectares of idle dry-season land into productive use. Continuous monitoring of soil conditions is crucial for long-term sustainability.
Organic cycleEconomicsClimate changePrevalence of Antibiotic Resistance Bacteria in Manure, Soil, and Vegetables in Urban Blantyre, Malawi, from a Farm-to-Fork Perspective
2025Amon Abraham, Andrew G. Mtewa, Chimwemwe Chiutula, Richard Lizwe Steven Mvula, Alfred Maluwa, Fasil Ejigu Eregno, John Njalam’mano · International Journal of Environmental Research and Public Health · Malawi (Blantyre)
This cross-sectional study in Blantyre, Malawi, characterized antibiotic-resistant bacteria (ARB) prevalence in 35 samples from five livestock farms, including manure, soil, and vegetables. It found high contamination, with Escherichia coli dominating pig manure (52%) and farm soil (35%), and Klebsiella pneumoniae contaminating all sample types (up to 67% in home soils, 60% in vegetables). All manure isolates showed sulfamethoxazole–trimethoprim resistance, and vegetables exhibited severe multidrug resistance, including 100% E. coli resistance to gentamicin. Composting for ≤6 weeks did not eliminate ARBs, indicating manure-amended farms are AMR reservoirs.
Contamination & food safetyHealthOrganic cycleHeavy metal contamination and remediation strategies in peri-urban agricultural soils
2025Laxman Barua, YOGITA ADHIKARI, Kuldeep Naik · International Journal of Agriculture and Nutrition · India (Prayagraj)
This research assessed heavy metal concentrations in agricultural soils near the Naini industrial area in Prayagraj, India, and evaluated remediation strategies. Lead and cadmium concentrations at 0.5 km from the industrial zone exceeded Indian permissible limits (Pb: 67.8 mg/kg vs 50 mg/kg; Cd: 6.4 mg/kg vs 5 mg/kg). A pot trial showed that Brassica juncea removed 34.7% of Pb and 41.2% of Cd, while lime + biochar reduced Pb by 52.4%. A combined approach reduced bioavailable Pb to below the permissible limit.
Contamination & food safetyPeri-urban agricultureHealthOrganic cycleUrban Agriculture as a Catalyst for Food Security and Sustainability in Ghana's Rapidly Urbanizing Cities
2025Christian Kofi Sarpong, Romanus Dogkubong Dinye, Alex Donbeinaa, Vera Nyarko Amoako · Asian Journal of Agricultural and Horticultural Research · Ghana
This study assessed the role of urban agriculture in Ghanaian cities through a systematic literature review of publications from 2000 to 2024. Urban agriculture was found to significantly contribute to food security, nutrition, and income, and to bolster environmental sustainability. However, challenges such as land tenure insecurity, unsafe irrigation practices, weak institutional support, and limited policy integration persist.
Governance failureFood sovereignty & justiceClimate changeEconomicsHealthOrganic cyclePolicyCommunityPRODUÇÃO DE HORTALIÇAS ORGÂNICAS: PROTAGONISMO FEMININO E SUSTENTABILIDADE NA VILA GALVÃO, CASA NOVA - BA
2025Suzana Márcia Souza dos Santos, Clecia Simone Gonçalves Rosa Pacheco · Editora Científica Digital eBooks · Brazil
This study analyzed the experience of the Vila Galvão Women Workers' Benevolent Association in Casa Nova, Bahia, Brazil, which produces organic vegetables in urban and peri-urban contexts. The study aimed to characterize the productive, commercial, and sociocultural aspects related to organic vegetable production and commercialization, identifying main marketing channels and understanding difficulties faced by producers. It concluded that organic production, combined with collective organization and the strengthening of the solidarity economy, represents a viable alternative for a more just, sustainable, and female-led rural development model.
Economic viabilityCommunityPeri-urban agricultureOrganic cycleEconomicsPolicyMovimento dos quintais brincantes: relato de experiência no quintal Aroeira em Imbé-RS
2025Ana Caroline Ferreira Rodrigues Acosta, Álvaro Ribeiro Nicotti · Revista Educação e Saber – REdeS · Brazil
This paper presents the "Movimento dos Quintais Brincantes" (Playful Backyards Movement) in Brazil, focusing on an experience in 2023 at Quintal Aroeira in Imbé-RS. The project involved five families and children aged 2-6, offering free play, outdoor activities, organic food from a community garden, and family participation in space maintenance and activity planning. After one year, it was concluded that this space contributed to children's autonomy, creativity, health, cooperation, and the creation of bonds among families, educators, and the surrounding community.
CommunityFood educationHealthOrganic cycleEnhancing urban waste sustainability through community-driven composting in São Paulo megacity
2024Amato-Lourenço L.F., Franca G.C., Seckler M.M., Mauad T. · Environmental Challenges, 14:100864 · Brazil
An analysis of a resident-led, decentralized community composting initiative begun in 2018 in São Paulo, using thermophilic decomposition (the UFSC method) in public squares. It presents a civil-society-driven waste-management model with positive environmental and social outcomes.
CompostOrganic cycleCommunityPolicyCurbing household food waste and associated climate change impacts in an ageing society
2024Shigetomi Y., Ishigami A., Long Y., Chapman A. · Nature Communications, 15:8987 · Japan
Demonstrates that per-capita household food waste in Japan rises with the age of the household head, reaching roughly three times higher for those 70+ than for those under 30, with correspondingly large differences in food-waste-related greenhouse gas emissions. It highlights the need for age-targeted food-loss reduction strategies in an ageing society.
Food lossOrganic cyclePolicyEconomicsLearning with compost: digging down into food waste, urban soils and community
2024Edwards F., Mercer H. · Local Environment (Taylor & Francis), 29(10) · Global
An ethnographic study of ShareWaste, an online community-composting platform in Sydney and Canberra that connects food-waste donors directly with households hosting compost heaps to divert waste from landfill. Drawing on environmental humanities and discard studies, it explores the relationships among people, soil, compost, and food waste and the community-building these practices foster.
CompostOrganic cycleFood lossCommunityUrban rewilding for sustainability and food security
2024Alessio Russo · Land Use Policy, 149, 107410 · Global
A conceptual paper extending the ecological-restoration paradigm of rewilding into urban and food contexts, arguing that multispecies-based 'urban rewilding' can simultaneously enhance climate resilience, biodiversity recovery, food-system robustness, water sensitivity and community participation. It also flags trade-offs such as green gentrification and land availability, opening new debate within productive green infrastructure.
BiodiversityCommunityFood educationOrganic cycleAssessing environmental sustainability by combining product service systems and life cycle perspective: A case study of hydroponic urban farming models in India
2024Paturu P., Varadarajan S. · Science of The Total Environment · India
Combines product-service-systems thinking and life-cycle assessment to compare the environmental impacts of hydroponic urban-farming business models (greenhouse, indoor, cabinet selling with remote monitoring) for lettuce production in Tamil Nadu, India.
EconomicsOrganic cycle環境報告書（令和６年度）
2024東京都国分寺市 · 国分寺市 環境報告書 · Japan
Kokubunji's annual environmental report under the basic environment plan, evaluating urban farmland preservation, local consumption and biodiversity while documenting municipally supported programmes such as the Citizen Agriculture University and citizen farms.
PolicyBiodiversityCommunityFood educationOrganic cycleSoil microbial activity profiles associated with organic compost fertilizers in an urban garden
2024Carolyn A. Zeiner, Maria N. Kisch, Ethan D. Lynch, Paliza Shrestha, Gaston E. Small · Urban Agriculture & Regional Food Systems · United States (Minnesota)
This study characterized soil microbial activity profiles—microbial abundance, soil respiration, extracellular enzyme activity, and crop yield—in an urban agriculture system in Minnesota, USA, using recycled organic compost (manure or municipal) at high or low rates. A high application rate of manure compost supported 6–10× higher basal respiration, and microbial biochemical function predicted 50% of the variability in bell pepper yield while community size alone was a poor predictor, indicating that "more is better" does not necessarily hold for soil microbial health.
CompostOrganic cycleUsing Recycled Construction Waste Materials with Varying Components and Particle Sizes for Extensive Green Roof Substrates: Assessment of Its Effects on Vegetation Development
2024· Sustainability · Global
Evaluates crushed brick and crushed concrete of varying particle sizes as extensive green roof substrates through simulated drought and rooftop experiments, turning low-value construction waste into a growing resource.
DIYOrganic cycleGreen Roof Systems within the Framework of a Circular Economy: A Scoping Review
2024· Recycling · Global
A scoping review of 68 open-access articles from 24 countries (2012–2022) mapping the reuse and recycling of alternative materials in green roof structures within a circular economy framework.
DIYOrganic cycleUrban Agriculture: Exploring Its Potential, Challenges, and Socio-Economic Impacts
2024· Journal of Scientific Research and Reports · Global
Comprehensive analysis of urban agriculture's potential, challenges, and socio-economic impacts. Examines successful citizen-driven models and barriers to scaling.
CommunityWelfareFood educationOrganic cycleUrban food waste for soil amendment? Analysis of waste-based compost for urban agriculture in Rosario, Argentina
2024· Frontiers in Sustainable Food Systems · South America
Study examining the use of urban food waste compost in urban agriculture in Rosario, Argentina. Analyzes waste-to-resource conversion and organic cycling potential.
Organic cycleFood lossCompostDIYFood from urban agriculture has carbon footprint six times larger than conventional produce
2024· PhysOrg (Research Report) · Multi-regional (France, Germany, Poland, UK, USA)
International citizen science study recruiting farmers and gardeners at urban agriculture sites in France, Germany, Poland, UK, and USA. Participants recorded daily diary entries of inputs and harvests. Found that urban farms may have higher carbon footprints due to intensive inputs, suggesting need for optimization of composting and organic waste utilization to reduce environmental impact.
Organic cycleFood educationSustainable Urban Agriculture: Unlocking the Potential of Home Gardens in Low-Income Communities
2024· The Professional Geographer · North America
Explores how home gardens in low-income communities unlock potential for urban sustainability. Analyzes interconnections between food access and environmental sustainability.
Food educationWelfareOrganic cycleUrban food waste for soil amendment? Analysis and characterisation of waste-based compost for soil fertility management in agroecological horticultural production systems in the city of Rosario, Argentina
2024Terrile R., Martinez N., Brunotto F., Rizzi M., Scarpeci T., Tornaghi C. · Frontiers in Sustainable Food Systems · Rosario, Argentina
Analyses and characterises urban waste-based composts used on two city farms in Rosario, evaluating their use for soil fertility management in agroecological horticultural production.
Food lossCompostOrganic cycleMunicipal Compost Public Health, Waste Management, and Urban Agriculture: A Decadal Study of Fugitive Pb in City of Boston, Massachusetts, USA
2024Yang et al. · GeoHealth · United States (Massachusetts)
Decadal study of Boston's municipal composting program. Lead concentrations consistently exceeded EPA soil benchmarks. Program halted in 2012. Highlights importance of compost safety for urban agriculture.
CompostHealthOrganic cycleRooftop Gardening: The Future of Urban Agriculture
2024Urban Agriculture Research Group · ResearchGate · Global
Investigates how rooftop gardening practices utilize small and unconventional spaces to increase cities' self-reliance in food production
Organic cycleAgroforestry Systems as Carbon Sinks: Quantifying Sequestration Potential
2024Lima, P., Mwangi, E., Sousa, H., Park, J. · Nature Climate Change · Global
Global analysis of 250 agroforestry systems showing 4-8 tons CO2/ha/year sequestration compared to 0.5-1 ton for monoculture. Scaling could sequester 3-4 gigatons CO2 annually.
Organic cycleEconomics