Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
65 results(1 / 3)
Boosting soil health and crop nutrients with locally sourced biochar and compost in Sacramento urban agriculture
2025· Frontiers in Sustainable Food Systems · North America (Sacramento, California, USA)
Field research conducted at two urban farms in Sacramento, California, USA. Investigates effects of locally produced compost and biochar amendments on soil health and plant nutrient uptake. Demonstrates feasibility of combining sustainable resource cycling with crop productivity in community-based urban agriculture systems.
CompostOrganic cycleFood educationHousehold food waste behaviors of participants in a municipal community compost program
2025Campbell C., Gusto C., Kelsey K.D., Haase H., Cohen N., Robertson K., Kiker G., Boz Z. · Journal of Agriculture, Food Systems, and Community Development, 14(2):9-26 · United States
A study in which 107 participants in a municipal community compost program in Gainesville, Florida, used a citizen-science approach to measure and record their household food waste for two weeks. Participants generated more than double the EPA's estimate (about 14 lb/week), yet 85.8% reported increased food-waste awareness and 71.5% reported reducing their waste, showing that community composting can nudge household food-loss reduction.
Food lossCompostCommunityFood educationMarket Yield of Relay Cropped Leafy Greens in Urban Agriculture Production Systems
2025Leigh Whittinghill, Megan Goins, Shawn Lucas · HortScience · United States
This study examined how two urban agriculture production systems (raised beds and container plots) and four nutrient-management treatments (conventional fertilizer, organic fertilizer, peat-and-compost plus organic fertilizer, and peat-and-compost only) affected yields of relay-cropped leafy greens across the 2018–2019 seasons. Significant differences between systems and treatments were few and inconsistent, but results suggest small plastic-pool containers are suitable for urban greens production and tentatively support organic fertilizers and compost as a nutrient source.
CompostEconomicsOrganic cycleReurbanização da favela Vila dos Heróis: uma abordagem com dignidade socioambiental
2025Leonardo Ferreira da Silva, Maria Laura Fogaça Zei, Juliana Alcantara Fernandes, João Moreirão, Fernando Camilher Almeida · Dialnet (Universidad de la Rioja) · Brazil
This article presents the Vila dos Heróis reurbanization project in Brazil as an integrated urban intervention model for informal settlements, based on a qualitative case study. The project includes 84 housing units with sustainable infrastructure such as a floodable park, photovoltaic energy, water reuse, composting, and a community garden. The proposal demonstrates the viability of reurbanization models that integrate qualified technical planning, community leadership, and socio-environmental sustainability.
CommunityCompostFood educationEvaluation Methodologies for Circular Economy in Municipal Composting and Urban Agriculture: a Literature Review with Focus on Latin America
2025Sofía Aguado, Helena Cotler, Marta Astier, Alejandro Padilla‐Rivera · Circular Economy and Sustainability · Latin America
This literature review examined methodologies applicable to municipal composting systems linked to urban agricultural production, with a specific focus on the Latin American context. It revealed a lack of structured methodologies to assess the circularity of municipal organic waste management systems and their connection with urban agriculture, particularly in heterogeneous contexts like Latin American cities, despite numerous existing evaluation methods. Life Cycle Assessment (LCA) is commonly used but often prioritizes environmental impacts, neglecting social, economic, and circularity dimensions.
Methodological critiqueCompostOrganic cycleEconomicsClimate changeDelmarva Power awards grant to support community sustainability initiatives.
2025· Corporate Philanthropy Report · United States (Delaware and Maryland)
Delmarva Power and the Delaware Nature Society awarded $40,000 in grants in 2024 through their Sustainable Community Grants program in Delaware and Maryland. These grants support projects in reforestation, sustainable transportation, affordable housing, and composting. Over the past four years, the program has provided more than $235,000 in total funding.
CommunityCompostEnhancing 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 cycleCommunityPolicyTrace Metal Contamination in Community Garden Soils across the United States
2024Maeve Malone, Kabindra M. Shakya · Sustainability · United States
This paper reviews the state of heavy metal contamination (such as lead, arsenic, and cadmium) in community garden soils across the United States, noting that gardeners are exposed through pathways such as inhalation and ingestion. It states that contamination hot spots are higher in city areas with greater minority populations and lower incomes. The review outlines mitigation approaches including applying biochar and compost, using raised beds, and maintaining a natural pH.
HealthCommunityCompostSoil 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 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 lossCompostDIYMunicipal 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 cycleTackling Historical Inequities in Urban Organic Waste and Composting
2024Boston University School of Public Health · Boston University School of Public Health · United States
Examines historical inequities in urban organic waste and composting access. Highlights disparities in low-income and communities of color. Advocates for equitable policy design and implementation.
CompostPolicyHealthRénover Cleveland : démolition, racisme et agriculture urbaine dans l’Amérique abandonnée
2024Pierric Calenge, Maie Gérardot · Métropolitiques · United States (Cleveland)
The work by Max Rousseau and Vincent Béal illuminates the ambiguities of a policy that organizes urban decline and racial segregation in Cleveland. This policy promotes urban degrowth and racial segregation, balancing algorithmic management and urban greening. The study focuses on the Rust Belt region, which experiences de-urbanization marked by the subprime crisis, racism, and segregation.
Equity & displacementCommunityPolicyEconomicsUrban–rural linkageFood sovereignty & justiceHealthWelfareClimate changeBiodiversityFood educationElderlyFood lossOrganic cyclePollinatorsHeirloom & landraceFood miles & supply chainCSA & TeikeiPeri-urban agricultureDigital agricultureDIYCompostFood educationWelfareElderlyFood lossOrganic cycleCommunityBiodiversityPollinatorsPolicyHealthEconomicsHeirloom & landraceUrban–rural linkageFood miles & supply chainCSA & TeikeiPeri-urban agricultureClimate changeFood sovereignty & justiceDigital agriculturePractising urban agriculture positively influences household organic waste management habits: A quantitative study from Florianópolis, Brazil
2024Gianluca Di Fiore, Kathrin Specht, Cesare Zanasi, Óscar José Rover · Waste Management & Research The Journal for a Sustainable Circular Economy · Brazil (Florianópolis)
A study in Florianópolis, Brazil, surveyed 206 individuals (102 urban agriculture practitioners, 104 non-practitioners) to analyze the influence of urban agriculture on household organic waste management behaviors. The findings indicate that urban agriculture practitioners are more likely to separate and self-treat organic waste and use compost for gardening, regardless of housing conditions. Housing conditions, however, influenced the use of public facilities for organic waste management.
Organic cycleCompostDIYCommunityExperiencia familiar de agricultura urbana y manejo de residuos sólidos en el municipio de Emiliano Zapata, Veracruz, México
2024Marycruz Abato Zárate, Noel Reyes Pérez, Miguel Ángel Escalona Aguilar, Doris Guadalupe Castillo Rocha, Reyna Ruth Hernández Pérez · Revista Científica Estelí · Mexico
This qualitative study described a family's experience with urban agriculture and solid waste management in Emiliano Zapata, Veracruz, Mexico, through an open interview with a four-member family. The experience, spanning from 2001, included solid waste separation, composting, vermicomposting, rainwater harvesting (24 m3/year), and cultivating over 40 species of medicinal plants. The study found that urban gardens offer multidimensional benefits, including biodiversity protection, biocultural memory preservation, and spaces for learning and social participation.
DIYCompostOrganic cycleFood sovereignty & justiceClimate changeRemediation of Soils Contaminated by Timbers in Community Gardens
2024Wendy J. Heiger-Bernays, Alicia Fraser, Valerie Burns, Kerry Diskin, Diedre Pierotti, Kian Merchant-Borna, Michael D. McClean, Daniel J. Brabander, H. Patricia Hynes · Scholarworks (University of Massachusetts Amherst) · United States (Boston)
This study identified the nature and extent of soil contamination by polycyclic aromatic hydrocarbons (PAHs) from railroad ties and arsenic from chromated copper arsenate (CCA) pressure-treated lumber in a representative community garden in Boston. Elevated levels of PAHs and arsenic were present in the gardens studied, with these timbers serving as a continuous source of contaminants. This is the first study to investigate contaminants other than lead and evaluate the effect of adding city compost on select soil contaminants in urban garden soil.
Contamination & food safetyHealthCommunityCompostRELATO DE EXPERIÊNCIA: PRODUÇÃO DE UMA HORTA COMUNITÁRIA DE UM PROJETO DE EXTENSÃO UNIVERSITÁRIO EM UMA ESCOLA MUNICIPAL DE PORTO VELHO, RONDÔNIA
2024Bárbara Rios Lacerda, Rafael Sanginez Zebalos Lourenço, Aleffy Helberty Alves da Silva, Ana Cláudia Barroso · Revista Ibero-Americana de Humanidades, Ciências e Educação · Brazil (Porto Velho)
This experience report details the implementation of a sustainable vertical community garden and a composting system at a municipal school in Porto Velho, Rondônia, Brazil, as part of the "Urban and Community Gardens: Cultivating Connections" project. The project aimed to provide food and food education, promote practical skills, environmental awareness, and healthy eating habits for students. Despite difficulties such as finding new locations and shortened deadlines, which limited contact with students and the local community, the project successfully established a sustainable garden for community consumption and environmental education for those involved.
CommunityFood educationOrganic cycleCompostOrganic amendments alter urban soil microbiomes and improve crop quality
2024Joshua Garcia, Mariel Mondragon-Becerra, I. Rojas Martínez, Mallika Nocco, Cristina Lazcano · Applied Soil Ecology · United States (California)
A greenhouse trial was conducted in urban agricultural soil from the San Francisco Bay Area, USA, to investigate the effects of organic amendments derived from local municipal waste products on the soil microbiome, tomato productivity, and quality. Liquid food waste hydrolysate and mixed herbivore waste compost increased microbial abundance in the soil compared to mineral fertilizer. While mineral-fertilized tomato plants generally had higher productivity and yields, plants treated with the hydrolysate and mixed herbivore waste compost showed enhanced fruit soluble sugar content (°Brix).
Organic cycleCompostBiodiversityDIYMycorrhizal fungi and soil factors influence toxic element uptake in urban grown produce
2023Logan Bowdish, Adalie Duran, Justin Richardson, Eric Vukicevich · Urban Agriculture & Regional Food Systems · United States
In an urban community farm, this study evaluated how crop identity, harvested tissue, and soil factors—including arbuscular mycorrhizal (AM) fungi—affect crop uptake of lead and arsenic. Lead uptake increased with lower soil pH and lower soil phosphorus, greater AM fungal colonization was associated with greater lead uptake, while more fungal storage vesicles related to less arsenic uptake into leaves.
HealthCompostRisk Mitigation Practices in Urban Gardening: A Case of Small Minority Producers in Maryland
2023Lila B. Karki, Prem Bhandari · Global Journal of Agricultural Research · United States (Maryland)
This 2022 project collected data from 22 small, socially disadvantaged minority urban gardeners in Maryland to enhance their efficiency. Findings showed farmers operated rationally, cultivating an average of 20 diversified specialty, ethnic, and medicinal crops on 1.2 acres. They employed integrated alley and mixed cropping systems, rainwater harvesting, expanded compost-making, maintained high cropping diversity, and introduced a tier system to mitigate production, marketing, and financial risks.
EconomicsHealthClimate changeCompostPlant growth and microbial responses from urban agriculture soils amended with excavated local sediments and municipal composts
2023Jordi Guimera Garcia, Natalie Bray, Yowhan Son, Aleah L. Butler-Jones, Sara Perl Egendorf, Jenny Kao‐Kniffin · Journal of Urban Ecology · United States (New York City)
In New York City, a study investigated plant growth (tomato, pepper, kale) in soils constructed from four municipal composts mixed with sediments from the NYC Clean Soil Bank, to assess the potential for safe urban agricultural soils. While Clean Soil Bank sediments enhanced plant growth when mixed with BRL compost, they also negatively impacted tomato aboveground biomass production by 29% in LES compost and tomato plant height by 18% in QBG compost, indicating variable effects depending on compost properties.
Contamination & food safetyCompostOrganic cycleHealthClimate changeExcess fertility in residential‐scale urban agriculture soils in two western Oregon cities, USA
2022Mykl Nelson, Gwynne Mhuireach, Gail A. Langellotto · Urban Agriculture & Regional Food Systems · United States (Oregon)
To characterize residential-scale urban agriculture soils, the authors sampled 27 residential vegetable gardens in two western Oregon cities, distinguishing in-ground beds from raised beds. They found these soils frequently exceeded recommended ranges for many fertility parameters—likely due to routine overapplication of compost, amendments, and fertilizers—with raised beds significantly higher than in-ground beds in carbon/nitrogen ratio, active carbon, and sulfur.
CompostOrganic cycleQuantifying use in a community garden program with extensive resource provision to gardeners
2022Alexandra Niedzwiecki, Norah Kates, Sally Brown, Kristen McIvor · Urban Agriculture & Regional Food Systems · United States (Tacoma)
This study surveyed 66 community gardens (1,960 plots) in the nonprofit Harvest Pierce County program in Tacoma and Pierce County, Washington, which provides gardeners with land, soil testing, clean soil, compost, water, and education. It found gardens were well-used across the program (mean use intensity 2.26 on a 0–3 scale), with larger gardens and plots used more intensively, and gardens well distributed across income, population density, and racial identity—suggesting the resource-provision model is inclusive.
CommunityCompostCompost
2022Margaret Marcy Emerson · Digital Commons - LIU Promoting Scholarship and Creative Work of LIU Students, Faculty, and Staff (Long Island University) · United States
In 2019, an estimated 35% of all food was lost or wasted in the U.S., and organic waste in landfills generates methane, a potent greenhouse gas. Composting significantly cuts the amount of food going into landfills, reducing climate and environmental impacts. Compost enhances soil, reduces the need for chemical fertilizers, improves soil water retention, provides carbon sequestration, and local composting conserves energy and reduces transport emissions.
CompostFood lossClimate changeCommunityA Conceptual Framework for Incorporation of Composting in Closed-Loop Urban Controlled Environment Agriculture
2021Dsouza A., Price G., Dixon M., Graham T. · Sustainability · Canada
Presents a conceptual framework for incorporating composting into closed-loop urban controlled environment agriculture to recycle nutrients from organic waste streams.
CompostFood lossOrganic cycle