Research & reports

Ramirez-Villegas J., Khoury C.K., Achicanoy H.A., Diaz M.V., Mendez A.C., Sosa C.C., Kehel Z., Guarino L., Abberton M. · Nature Plants 8:491-499 · Global

A global gap analysis predicting distributions of over 70 landrace groups across 25 crops, finding a mean 63% represented in genebanks and major collecting gaps in South Asia, the Mediterranean, the Andes and Africa.

Dias G. M., Ayer N. W., Khosla S., Van Acker R., Young S. B., Whitney S., Hendricks P. · Sustainable Cities and Society 87:104198 · Global

Text-mining review of commercial urban agriculture literature, identifying economic drivers such as employment generation, supply-chain cost reduction, and market proximity as the main forces behind for-profit urban farming.

UN-Habitat · UN-Habitat · Global

Frames the role of urban-rural linkages in biodiversity conservation, presenting integrated urban-rural governance through ecological corridors, green belts and farmland protection.

UNCCD · UNCCD (UN Convention to Combat Desertification) Working Paper · Global

A policy analysis of how urban expansion cascades into rural land degradation and ecosystem loss, arguing for urban-rural linkage governance to drive land restoration and combat desertification.

CoSAI, IWMI · CoSAI / IWMI (International Water Management Institute) · Global

Identifies priority investment areas for urban and peri-urban agriculture in the Global South—Asia holds 49% of the world's urban irrigated cropland—and proposes investment priorities across technology, policy and finance.

Doyle G. · International Journal of Urban Sustainable Development · Ireland (Dublin)

Based on case studies in Dublin, this paper identifies the key capacities—diverse expertise, supportive organisations, and access to land and resources—that enable community groups to successfully establish and sustain community gardens in Ireland. Published in the International Journal of Urban Sustainable Development (Vol. 14, No. 1, pp. 15–32).

Baldini C., Marasas M.E., Tittonell P., Drozd A.A. · Land Use Policy · Argentina (La Plata)

Using multicriteria analysis in La Plata's periurban horticultural belt, the study maps land-use aptitude and identifies conflict zones between urban expansion and agricultural production, calling for integrated sustainable planning.

Wadumestrige Dona C.T.G., Mohan G., Fukushi K. · Current Research in Environmental Sustainability · Sri Lanka (Colombo)

A perception survey of 402 small-scale farmers in Colombo District found positive attitudes toward the social, economic, and environmental benefits of urban agriculture, with environmental benefits rated highest, supporting home and community gardens as viable open-space management strategies for shrinking cities.

Ishak N., Abdullah R., Mohd Rosli N.S., Abdul Majid H., Abdul Halim N.S., Ariffin F. · Quaestiones Geographicae, Vol. 41, No. 4, pp. 57–72 · Malaysia (Kuala Lumpur)

A survey of 106 urban farmers across 17 community gardens in Kuala Lumpur identified weather variability, land access, and financial constraints as the primary obstacles to urban food production, highlighting the need for targeted policy support.

Murdad R., Muhiddin M., Osman W.H., Tajidin N.E., Haida Z., Awang A., Jalloh M.B. · Sustainability (MDPI), Vol. 14, No. 7, Article 4155 · Malaysia

This review examines how COVID-19 disrupted Malaysia's fresh food supply chain and argues that urban farming approaches—including community gardens, vertical farming, and hydroponics—can meaningfully strengthen urban food security for Malaysian households.

Hanna C., Wallace P. · Kōtuitui: New Zealand Journal of Social Sciences Online, Vol. 17, No. 3, pp. 313–335 · New Zealand

Examining the four largest New Zealand cities, this paper reveals a significant policy vacuum for urban agriculture, with restrictive zoning, inadequate recognition of Māori food practices, and a failure to accommodate emerging urban food-growing forms, calling for targeted municipal policy reform.

Jessica Quinton, Lorien Nesbitt, Daniel Sax · Progress in Human Geography · Global

A systematic review of the methods used in green gentrification research — the claim that adding vegetation such as parks, street trees and gardens raises property values and displaces existing residents. It finds that studies are heavily concentrated on U.S. cases, that early qualitative work has been giving way to quantitative analysis, that almost no attention has been paid to which characteristics of greening (scale, type, location) matter, that demand-side mechanisms remain poorly understood, and that displacement itself — the central concern of the literature — has not been well documented.

Florian Thomas Payen, Daniel L. Evans, Natalia Falagán, Charlotte A. Hardman, Sofia Kourmpetli, Lingxuan Liu, Rachel Marshall, Bethan R. Mead, Jessica A. C. Davies · Earth's Future · Global

A global meta-analysis extracting 2,062 observations from 200 studies reporting urban crop yields, compared across crops, urban spaces (allotments, rooftops, indoor systems) and growing systems. Urban yields were on par with or greater than global average conventional yields, with the largest gap for cucumbers and gherkins (17 kg m⁻² cycle⁻¹ versus 3.8 kg m⁻² cycle⁻¹ conventional). The authors flag significant limits: observations cluster in Europe (n=516), North America (n=398) and East Asia (n=361), with the seven most-studied countries supplying roughly two-thirds of the data and sub-Saharan Africa only 223 observations; many observations come from researcher-run field experiments with controlled inputs, which is likely to inflate yields relative to ordinary citizen plots; and the literature concentrates on leafy greens and tomatoes while fruit is barely studied.

Nitya Rao, Sheetal Patil, Chandni Singh, Parama Roy, Charles Pryor, Prathigna Poonacha, Mariam Genes · Sustainable Cities and Society · Global

This systematic literature review analyzed 320 articles quantitatively and 86 qualitatively from a total of 4029, examining outcomes of urban and peri-urban agriculture (UPA) on sustainability and wellbeing. The review confirmed an exponential increase in UPA literature since 2015 and a regional bias towards the Global North. It identified six thematic outcomes across environmental, economic, and social sustainability pillars, with environmental sustainability being most discussed and gender and social differentiation least represented.

Rachael Walshe, Lisa Law · Landscape Research · Australia

This study explored how university masterplans in Australian universities express the benefits of campus community gardens as green community spaces and how they might better aid universities in achieving strategic missions, using a multiple case-study methodology. By comparing dominant themes in community garden literature with the visions of campus masterplans, the research aimed to understand how community gardens might be better positioned as tools for place and community building. The results provided a finer-grained understanding of green infrastructure in campus master planning for a post-COVID-19 moment.

Karen Lourdes, Perrine Hamel, Chris Gibbins, Ruzana Sanusi, Badrul Azhar, Alex M. Lechner · Landscape and Urban Planning · Malaysia

This study characterized the spatial distribution of multiple urban ecosystem services (UES) in a rapidly urbanizing catchment in Greater Kuala Lumpur, Malaysia, and developed a systematic approach to integrate UES into green infrastructure (GI) planning. Using InVEST models to spatially quantify and map six UES (heat mitigation, runoff retention, sediment retention, scenic quality, urban recreation, and agricultural production), the assessment revealed that densely built areas generally had low UES provision. A multicriteria analysis identified locations for five GI strategies: conservation of headwaters, reforestation for biodiversity, development and conservation of urban parks, and greening of built infrastructure.

Grace Ning Yuan, Gian Powell B. Marquez, Haoran Deng, Anastasiia Iu, Melisa Fabella, Reginald B. Salonga, Fitrio Ashardiono, Joyce A. Cartagena · Heliyon · Global

This review examined urban agriculture (UA) across technology, socio-economy, and policy, noting that supporting UA expansion in cities is challenging due to its poor economic profitability. The study highlighted UA's value beyond profitability, including social, health and well-being, disaster risk reduction, and environmental benefits. It also presented advancements in UA technologies and plant biotechnology as potential solutions for increasing the future profitability of commercial UA.

Amy Lawton, Nicky Morrison · Land Use Policy · Australia (Greater Western Sydney)

This study examines the drivers of peri-urban agricultural land loss in Greater Western Sydney, Australia, with a focus on the role of government agencies. It found that competing housing priorities and private market interests continue to take precedence over protecting agricultural land. The research indicates that this trend will persist unless the current pro-urbanization narrative and associated political priorities are altered.

Imen Bendjemila, Salah Chaouche · DOAJ (DOAJ: Directory of Open Access Journals) · Algeria

Urban sprawl in N'Gaous, Algeria, expanded its land area by over ten times (from 33.7 to 379.7 hectares) and its population by over six times (from 4,887 to 33,515 persons) over 60 years. This rapid growth creates significant issues, particularly for peri-urban orchards, which are the primary economic activity. The study used an analytical approach with Geographic Information Systems to assess the agronomic potential of soils and quantify agricultural land consumed by construction, aiming to achieve an optimal agri-urban balance rather than merely avoiding urban expansion.

Graham Slater, Robert G. Unzueta, Clayton Pierce · · Global

This chapter argues that much scholarly literature on school gardens is based on problematic assumptions or ignores histories of violence and dispossession. Without an ecocritical approach, school gardens risk replicating systems of domination, extraction, exploitation, and human supremacy. The authors propose integrating theoretical reflection into emancipatory action within a historical materialist framework to address colonization, land dispossession, labor exploitation, and anthropocentrism.

Dan Yan, Litao Liu, Xiaojie Liu, Ming Zhang · Land · Global

A bibliometric analysis of 605 papers from the Web of Science database (2001–2021) tracked global research trends in urban agriculture. The study found a substantial increase in publications, with the US, Germany, UK, Italy, and China being the most influential countries. Research focuses include food production, various functions of urban agriculture, and emerging topics like sustainability and the water-energy-food nexus. The analysis also noted that urban agriculture does not necessarily equate to a resource-conserving and environmentally friendly food system, suggesting a need for technology-based transitions for sustainable development.

Elisabeth Meyer-Renschhausen · Journal of Contemporary Central and Eastern Europe · Global

This article provides a historical overview of small-scale, subsistence farming, primarily by women, spanning two centuries from the early 19th century to the 21st century. It traces the evolution from the loss of commons in Prussia to urban farming in contemporary cities across Europe, America, and Africa. The discussion includes subsistence farming in towns, garden cities, post-war initiatives, and the significant role of unacknowledged family production in Eastern Europe.

Betty Mntambo · Huria Journal of the Open University of Tanzania · Tanzania (Morogoro Municipality)

This study examined land tenure security in urban agriculture among 69 male and female vegetable farmers in Morogoro Municipality, Tanzania, using snowball sampling and a cross-sectional design. Findings revealed that farmers access land informally by renting from legal landowners, with social relationships determining tenure security. Land tenure insecurity negatively affects vegetable cultivation and generates uncertainty and animosity between farmers and landlords.

Melissa Anna Murphy, Peter E. Parker, Margot Hermus · Local Environment · Global

This article aims to unpack how urban settings, organizational forms, and municipal enabling affect urban gardening (UG) practices towards inclusion in public space. It draws on urban commons theory and research on inclusion in public space to understand multi-faceted UG governance and its exclusionary aspects. A comparative analysis of UG initiatives in three Northern European municipalities explores both municipal enabling and the co-production of inclusive public space.

Hadi Ebadi, Zahra Mohebi · Journal of Sustainability Perspectives · Iran (Kermanshah)

This study investigated the implementation of an urban agriculture plan (green garden) at Razi University of Kermanshah, Iran, and its effects on sustainable development. The plan is expected to strengthen social interaction, economic and environmental aspects, and foster a culture aligned with urban agriculture development. The findings are intended for use in planning and agricultural policies.