Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
47 results(1 / 2)
Urban expansion and food security implications: A three-decade analysis of land use change in Kinondoni district, Dar es Salaam, Tanzania (1993-2023)
2026Adili Y. Zella · African Journal of Social Issues · Tanzania
This study analyzed land use and land cover (LULC) changes in Kinondoni District, Dar es Salaam, Tanzania, between 1993 and 2023 using multi-temporal Landsat satellite imagery. The analysis revealed that built-up areas expanded by 1,433%, from 124.20 ha in 1993 to 1,905.14 ha in 2023. Concurrently, cultivated land decreased by 96.6%, from 172.90 ha to 5.88 ha, representing a loss of 167.02 ha. The near-complete elimination of cultivated land in Kinondoni District indicates a critical threat to local food production capacity and urban food security.
Environmental trade-offsFood sovereignty & justiceUrban–rural linkageClimate changePolicyHeat exposure and agricultural workers' health: A global systematic review with implications for Peri-urban and semi-urban Southeast Asia
2026Nu Quy Linh Tran, Cordia Chu, Hai Phung, Son Nghiem, Han Le, Tuyet-Hanh Tran, Dung Phung · Urban Climate · Global
This global systematic review analyzed 97 studies from 27 countries on heat exposure and agricultural workers' health. The majority of studies (54.6%) were from North America, with Africa, South America, and Asia significantly underrepresented. Common health outcomes included self-reported heat-related illnesses (27.8%) and kidney issues (20.6%), but cardiovascular health, mortality, and mental well-being remain significantly understudied. In Southeast Asia, urbanization increases heat risk for peri-urban agricultural workers, as these zones often lack infrastructure, healthcare, and regulatory protections, exacerbating exposure to extreme heat, particularly from the urban heat island effect.
Environmental trade-offsHealthClimate changePeri-urban agriculturePerceived sustainability impacts of converting to community‐supported agriculture
2026Lukas Egli, Jana V. Schmidt, Hanna‐Sofie Haf, Mirco Zech · Urban Agriculture & Regional Food Systems · Global
This exploratory quantitative survey assessed farmers' perceived sustainability impacts of converting to Community-Supported Agriculture (CSA). While most perceived impacts were positive, adverse impacts were anticipated regarding climate and water, such as increased water usage from vegetable production. Farmers in CSAs with medium to high member participation perceived significantly higher biodiversity impacts and more positive sustainability impacts for members.
Environmental trade-offsCSA & TeikeiClimate changeBiodiversityEconomicsApplying recovered nutrients and pruning waste to enrich and regenerate agricultural soils in urban agriculture: Effects on emissions and yield of spinach and sweet potato
2026Guido Evangelista, Juan David Arosemena, Gaia Stringari, Joan Romanyà, Xavier Gabarrell, Francesco Orsini, Gara Villalba · Agriculture Ecosystems & Environment · Global
This study evaluated the application of 150 t ha-1 of ramial chipped wood (RCW) to degraded peri-urban agricultural soils, comparing its effects on yield, soil health, and greenhouse gas emissions for spinach and sweet potato. Spinach grown with RCW showed the lowest productivity (1.16 – 0.32 kg m-2) among treatments, while sweet potato achieved the highest yield (1.72 – 1.99 kg m-2). High RCW doses initially led to higher CO2 emissions but significantly reduced N2O emissions for spinach (from 0.36 kg ha-1 to 0.07 kg ha-1) and enhanced soil organic carbon and nitrogen stocks for sweet potato, indicating agronomic and environmental trade-offs.
Environmental trade-offsOrganic cycleCompostClimate changePeri-urban agricultureSynergising outdoor, indoor, and greenhouse urban agriculture to strengthen urban resilience in an era of polycrisis
2026James Vandenberg, Kerstin Krellenberg · Sustainable Cities and Society · Global
This study investigated how differentiated configurations of outdoor, indoor, and greenhouse urban agriculture (UA) impact Urban Resilience Capacities (URCs). It found that a strategic, place-based, combinatorial approach to integrating UA typologies can produce mutually reinforcing outcomes, strengthening various URCs simultaneously. However, a strong risk of trade-offs exists when UA systems are not aligned, and a critical research gap remains as empirical case studies are concentrated in Europe and North America, overlooking experiences in the Global South.
Environmental trade-offsClimate changeCommunityPolicyHigh respiration rates induce net CO2 emissions in an urban allotment garden in Finland
2025Piaopiao Ke, Beñat Olascoaga, Pasi Kolari, Outi Tahvonen, Sami Haapanala, Tom Kokkonen, Leena Järvi, Markku Kulmala, Anna Lintunen · Urban forestry & urban greening · Finland
A year-round eddy covariance and soil chamber measurement in an urban allotment garden in southern Finland showed it functioned as a net CO₂ source (0.69 kg m⁻² yr⁻¹) despite 77% vegetation cover. High respiratory emissions (4.7 kg m⁻² yr⁻¹) exceeded photosynthetic uptake (4.0 kg m⁻² yr⁻¹), likely due to elevated soil organic carbon (13.4 ± 8.7%) and high soil C:N ratio from management amendments. These findings challenge assumptions about urban gardens as inherent carbon sinks and suggest carbon-smart management practices are needed.
Environmental trade-offsClimate changeOrganic cycleCommunityFloristic Diversity and Characterization of Peri-Urban Agriculture in Some Drains of the City of Douala (Cameroon)
2025Olivier Parfait Bissemb, Rosette Christelle Ndjib, Patrice Brice Mvogo Ottou, Jacques Bruno Ngotta Biyon, Zenabou Ndiang, Georges Maxime Lamy Lamy, Eric Ngansop Tchatchouang, Ivant Stevy Nganmo, Jean Lagarde Betti, Richard Jules Priso · Journal of Environmental Protection · Cameroon (Douala)
This study assessed floristic diversity and agricultural practices around five stormwater drains in Douala, Cameroon, identifying 67 species from 24 families. Floristic diversity, measured by the Shannon-Weaver index (H'= 0.99) and low evenness (E = 0.23), indicated an unbalanced plant community dominated by a few cultivated and ruderal species. The analysis also revealed significant homogenization between drains, suggesting common agricultural practices and environmental pressures in these polluted environments.
Environmental trade-offsBiodiversityPeri-urban agricultureFood sovereignty & justiceClimate changePotential for urban agriculture: Expert insights on sustainable development goals and future challenges
2025Margarethe Karpe, Jeremías Lachman, Lili Wang, L.F.M. Marcelis, E. Heuvelink · Sustainable Production and Consumption · Global
A Delphi survey with 108 experts explored urban agriculture's potential contributions to Sustainable Development Goals (SDGs) under a scenario of 30% urban food self-sufficiency. Experts identified SDG 7.2 (renewable energies) as a key challenge due to high energy use, and agreed that none of the evaluated SDG targets for urban agriculture will be met by 2030. They also noted a lack of regulations and public policies for innovative agricultural systems.
Environmental trade-offsClimate changeFood sovereignty & justiceEconomicsPolicyConclusion: Cultivating Middle Ground
2025· The MIT Press eBooks · Global
This book examines community farms in Latin America, Australia, and China, highlighting tensions between local identities and global transformation. It finds that while industrial expansion in export agribusiness generates macroeconomic benefits, it incurs micro-level costs such as the replacement of peri-urban farms by plantations, loss of biodiversity, and groundwater contamination from pesticides and fertilizers. The study suggests that food system intermediaries are crucial in connecting rural migrants with urban farms and resources.
Environmental trade-offsCommunityPeri-urban agricultureFood sovereignty & justiceBiodiversityClimate changeEstimating Urbanization’s Impact on Soil Erosion: A Global Comparative Analysis and Case Study of Phoenix, USA
2025Ara Jeong, Dylan S. Connor, Ronald I. Dorn, Yeong Bae Seong · Land · Global
This study modeled the impact of urbanization on soil erosion across global cities using modern erosion data and cosmogenic nuclide 10Be analysis. It found that urbanization accelerated soil erosion by approximately 7–19 times in environments with mean annual precipitation below 1500 mm, and by 23–72 times in wetter urban centers. A century-long expansion of Phoenix, USA, accelerated soil erosion by about 12 times, supporting the urban cycle of soil erosion theory.
Environmental trade-offsClimate changeUrban–rural linkagePsychological and Environmental Impacts of Climate Change in Villages around the Mutanda Mining Site (Lualaba Province, Democratic Republic of Congo)
2025Yvon Mwengwe Muhongo, Eric Nice Nshembe Chishungu · Journal of Advanced Psychology · Democratic Republic of Congo
This study investigated the psychological and environmental impacts of climate change and mining degradation in villages surrounding the Mutanda Mining site in Lualaba province, Democratic Republic of Congo, using a mixed-methods approach. Findings reveal that proximity to the mining site is a major determinant of ecological deterioration and psychological distress. Villages within 5 km of the site showed higher environmental degradation, stronger perceptions of climate change, and significantly elevated eco-anxiety and ecological stress levels. Community resilience mechanisms such as social support, community gardens, and local ecological restoration initiatives partially mitigate psychological impacts.
Environmental trade-offsCommunityHealthClimate changeSpatial opportunities at the rural-urban fringe: balancing urban growth, food production and ecology
2025Marcus Robinson, Jacky Bowring, Shannon Davis, Sarah Edwards · Landscape Research · Global
This narrative review explored how urban expansion at the rural-urban fringe drives the loss of productive agricultural land, biodiversity, and ecosystem services. The review examined how these competing interests can be negotiated spatially, emphasizing the role of multifunctional green infrastructure to integrate both food production and ecological function across the urban-rural continuum.
Environmental trade-offsPeri-urban agricultureUrban–rural linkageBiodiversityClimate changePolicyUrban Agriculture and Food Security
2024Aashna Sinha, Kailash Bisht, Digvijay Singh · · Global
This article explores vertical hydroponic farming, noting its benefits like reduced space and water use, and enhanced robustness with Plant Growth-Promoting Microorganisms (PGPMs). However, it also demonstrated that the system's ecological impact is significantly affected by growing media, pots, electricity use, and transportation. The study suggests potential for reducing greenhouse gas emissions and abiotic resource decline by using fiber as growing medium and paper containers.
Environmental trade-offsDigital agricultureClimate changeEconomicsOrganic cycleSharing or sparing? The trade-offs among urban services, food production and ecosystem services
2024Dongxiang Chen, Yuanming Wang, Haijun Bao · Habitat International · Global
This research extended the land sharing and sparing framework to urban land use, quantifying the impact of urban services, food production, and ecosystem services. The results showed that land-sparing scenarios had a 23.6% lower overall value loss than sharing scenarios on average. However, while land-sparing mitigates losses in food production and ecosystem services, it increases the cost of urban services, creating a trade-off that challenges achieving an optimal win-win situation.
Environmental trade-offsPolicyEconomicsUrban–rural linkageClimate changePatterns of Urban Sprawl and Agricultural Land Loss in Sub-Saharan Africa: The Cases of the Ugandan Cities of Kampala and Mbarara
2024Ronald O. Muchelo, Thomas F. A. Bishop, Sabastine U. Ugbaje, Stephen Akpa · Land · Uganda (Kampala)
This study examined urban growth and agricultural land loss in Kampala (1989-2015) and Mbarara (2002-2016), Uganda, using multi-temporal Landsat imagery. Kampala's urban area surged from 7.14% to 55.10%, and Mbarara's from 6.37% to 30.95%, while agricultural land decreased significantly in both cities. A substantial portion of urban growth encroached upon agricultural land (66.7% in Kampala, 57.8% in Mbarara), and unsustainable practices also converted wetlands and forests to agricultural land.
Environmental trade-offsUrban–rural linkagePeri-urban agriculturePolicyClimate changeImprovement of the urban microclimate with aromatic and medicinal plants
2024Administrative Region of Central, Thessaloniki, Greece, K.I. Maknea, Nikolaos Thymakis, Julia Nerantzia Tzortzi, A. Asănică · Romanian journal of Horticulture · Greece
Experimental research at eight sites in Thessaloniki, Greece, evaluated the impact of aromatic and medicinal plants on the urban microclimate. Sites with these plants showed a 10-15% temperature reduction compared to non-planted areas, and potted plants on simulated balconies led to a 5-10% temperature reduction. However, areas with dense vegetation and water features exhibited increased humidity and limited air circulation, creating adverse thermal comfort conditions.
Environmental trade-offsBiodiversityClimate changeDIYSpatio-temporal Landuse/Landcover Dynamics in the Coastal Areas of Limbe and Douala IV Municipalities and Implications on Wetland Regulating Ecosystem Services
2024Aminkeng Lucienne Fuanyi, Tata Emmanuel Sunjo, Balgah Sounders · Environmental Management and Sustainable Development · Cameroon
This study analyzed the implications of spatio-temporal land use/land cover (LULC) dynamics on wetland ecosystem services in the coastal areas of Limbe I and III Municipality and Douala IV Municipality, Cameroon, from 1986 to 2022, using GIS techniques. Over 36 years, wetlands retreated by -0.2km² (-0.96%) in Limbe I & III and -0.48km² (-0.14%) in Douala IV, while built-up areas increased by 0.75km² (0.36%) and 1.63km² (0.45%) respectively. These LULC changes, based on wetland regulating services, exposed neighborhoods in Limbe I & III to flood vulnerability and identified two categories of vulnerable neighborhoods in Douala IV.
Environmental trade-offsClimate changeUrban–rural linkageUrine luck: Environmental assessment of yellow water management in buildings for urban agriculture
2024María Virginia Maiza, Joan Muñoz‐Liesa, Anna Petit‐Boix, Verónica Arcas‐Pilz, Xavier Gabarrell · Resources Conservation and Recycling · Global
A life cycle assessment compared three human urine management strategies for nitrogen fertilizer production: an artificial wetland, an on-site lab-scale aerobic reactor (S2), and a centralized wastewater treatment plant. S2 showed the highest environmental impacts in 6 out of 8 categories, including high energy demand (750 kg MJ-eq) and ecotoxicity (602 kg 1.4-DCB-eq), although it offered an advantage in marine eutrophication. Upscaling S2 could reduce impacts and lower payback time, with nitrogen production exceeding 2.3 times the yearly demand for building tomato production.
Environmental trade-offsOrganic cycleClimate changeIMPACTS ENVIRONNEMENTAUX ET CHANGEMENTS URBAINS DANS LA COMMUNE DE HAMMA BOUZIANE (CONSTANTINE, ALGÉRIE)
2023Institut de Gestion des Techniques Urbaines, Université Larbi Ben M’hidi, MERIEM BENLAHRECHE, Saïd Mazouz, Département d’architecture, Université Larbi Ben M’hidi · Revue Roumaine de Géographie / Romanian Journal of Geography · Algeria
This article aims to explain urban phenomena in Hamma Bouziane, Algeria, a city known for its fertile land. The study indicates that the peri-urban agriculture of Hamma Bouziane is suffering negative repercussions due to unbridled urban expansion and socio-economic changes.
Environmental trade-offsPeri-urban agricultureUrban–rural linkageClimate changeEconomicsKentsel Gıda Planlaması için Çıkarımlar: Gıda'nın Kent-Bölgesi'ni Tanımlamak (Inferences for Urban Food Planning: Defining City-Region of Food)
2023Ayşegül YARIŞ, Emel Karakaya Ayalp · Zenodo (CERN European Organization for Nuclear Research) · Global
The current agri-food system is undergoing an unsustainable transition, with Urban Food Planning emerging as a holistic approach for sustainable transition. This paper explains and translates the "City-Region Food System (CRFS) Toolkit," developed in partnership with FAO, RUAF, and participating cities. It examines the toolkit's roadmap and approach for building more sustainable and resilient urban food systems through two case studies in West Africa. The research concluded that the CRFS Toolkit defines limited tools for building sustainable urban food systems and excludes the relationship with spatial disciplines.
Environmental trade-offsPolicyFood sovereignty & justiceClimate changeUrban–rural linkageDetecting wetland encroachment and urban agriculture land classification in Uganda using hyper-temporal remote sensing
2022Stella Kabiri, Molly Allen, Judith Tomma Okuonzia, Beatrice Akello, Rebecca Ssabaganzi, Drake N. Mubiru · Open Research Africa · Uganda
This study investigated the extent of wetland loss and encroachment by urban agriculture in Wakiso and Kampala, Uganda, over 30 years from 1986 to 2016. Using field surveys, Landsat, and MODIS NDVI data, the analysis found that 72,828 ha (73%) of Wakiso-Kampala wetlands were lost, while agricultural areas doubled. Of this, 16,488 ha (23%) were converted from wetlands, with all cultivated agriculture in Kampala occurring in wetlands and 73% in Wakiso.
Environmental trade-offsUrban–rural linkageClimate changePolicyBalancing urban agriculture with sustaining ecosystem services
2022Monika Egerer, Brenda B. Lin · CABI Reviews · Global
This review evaluated ecosystem services (ES) within urban agriculture (UA) systems and the trade-offs between these services. Urban agriculture provides many benefits and environmental services such as food provision, social cohesion, and climate regulation. However, it was shown that management decisions can create trade-offs between ecosystem services, where an increase in one service may potentially reduce the system's ability to provide another service at a desired level.
Environmental trade-offsBiodiversityClimate changeCommunityOrganic cycleAdapting peri-urban agriculture to climate change in Bulawayo, Zimbabwe: A qualitative assessment
2021Thulani Dube, Saziso Sibanda, Phibion Chiwara · Cogent Social Sciences · Zimbabwe (Bulawayo)
This study investigated farmers' perceived effects of climate change on peri-urban agriculture in Bulawayo, Zimbabwe, and their adaptation methods. Using a sample of thirty peri-urban plots, findings revealed that farmers perceived significant climatic changes negatively impacting their farming activities, including reduced precipitation, increased atmospheric temperature, and diminishing borehole yields. Adaptation methods included repeated planting, watering plants at night, renting animal space in other farms with more water sources, and purchasing supplementary feed for livestock.
Environmental trade-offsPeri-urban agricultureClimate changeFood sovereignty & justiceMonitoring the contribution of urban agriculture to urban sustainability: an indicator-based framework
2021Carlos Tapia, Linda Randall, Shinan Wang, Luciane Aguiar Borges · Sustainable Cities and Society · Denmark (Aarhus)
This study presents a novel indicator-based evaluation framework for urban agriculture, tested in Fællesgartneriet Brabrand, a community garden in Aarhus, Denmark. The framework aims to capture the contribution of gardening practices to urban sustainability, acknowledging that urban agriculture may also have social and environmental externalities depending on prevalent farming practices.
Environmental trade-offsCommunityHealthPolicyClimate changeDevelopment potentials and sustainability challenges of peri-urban farming in the metropolis of Rabat (Morocco)
2021Fatiha Hakimi · Journal of Analytical Science & Technology · Morocco (Rabat)
This study assessed the practices, roles, and challenges of peri-urban farming in the metropolis of Rabat, Morocco, surveying 50 respondents. Peri-urban agriculture is a multifunctional activity contributing to job creation, income generation, food supply, and environmental beautification. However, it faces several constraints, including precarious and costly labor, absence of regulating laws, lack of training and technical supervision for peri-urban farmers, and water resource shortages.
Environmental trade-offsPeri-urban agricultureEconomicsClimate changePolicy