Research & reports

· Aquaculture International · Global

The paper argues that low-cost aquaponics can support food security and socio-economic development in poor communities, and defines the critical success factors needed to realize such systems.

· Agriculture · Tanzania

Examines micro-investment by smallholders in affordable drip irrigation kits (bundled with seeds, inputs and advice) for vegetable production and improved livelihoods and nutrition.

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.

Andrea Fantini · Agroecology and Sustainable Food Systems · Global

This paper analyzes the functions of urban and peri-urban agriculture (UPA) as a strategy for sustainable and resilient urban food systems and for coping with global emergencies. It identifies various functions of UPA and how they connect, but also discusses obstacles to its large-scale implementation. The paper highlights that despite its potential, significant barriers hinder UPA's widespread adoption.

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.

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.

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.

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.

Mosammat Rowshan Ara · Khulna University Studies · Bangladesh (Khulna City)

This study surveyed 361 household heads in Khulna City, Bangladesh, to assess the contribution of urban agriculture to the sustainable livelihoods of low-income people. Agricultural activities observed included vegetable cultivation, livestock rearing, aquaculture, crop cultivation, and innovative gardening. The Index of Agriculture for Sustainable Livelihood (IASL) showed that landowners engaged in more sustainable activities, with sustainability increasing by 0.218 units per decimal of land, and male respondents contributed more to agricultural activities than females. The findings suggest agriculture can help fulfill basic needs for low-income urban residents.

Bernd Bonfert · Sustainability · Wales

This paper investigated local Community Supported Agriculture (CSA) networks in Wales and Germany using semi-structured interviews and observations. It found that local collaboration enables CSAs to integrate supply chains, engage communities, and participate in food councils. However, the study also revealed competitive tensions between neighboring CSAs, which presents a previously unknown challenge to CSA's potential scalability.

Michael G. Parkes, Duarte Leal Azevedo, Tiago Domingos, Ricardo F. M. Teixeira · Atmosphere · Global

This literature review, covering 28 articles from 2015–2022 on 68 active urban agriculture (UA) installations, systematizes narratives about the benefits of controlled environment agriculture (CEA) and soil-less growing systems in urban buildings. The review found that data quantifying the claimed benefits are limited, and thus the exact environmental effects of CEA remain undetermined.

Vesna Popović, Branko Mihailović · IGI Global eBooks · Serbia (Belgrade)

This study analyzed the business model of EkoPark Belgrade, an organic farm within Serbia's Avala Protected Area, which combines certified organic production and direct sales with on-farm services. Using the Canvas Business Model, the authors identified key success factors to help farmers in and around urban protected areas choose viable development strategies.

Yiming Shao, Zhugen Wang, Zhiwei Zhou, Haojing Chen, Yuanlong Cui, Zhenghuan Zhou · Sustainability · Global

Vertical farming faces challenges such as high energy consumption, costs, and a lack of social acceptance. This study investigated public acceptance of micro-vertical farming using a deconstructed theory of planned behavior model. Results showed that the overall mean of public behavioral intentions to use vertical farming was 3.9, which is above neutral (3.00) but less than positive (4.00).

Ada Górna · Prace i Studia Geograficzne · Global

A study analyzed urban agriculture supply chains in Havana, Kigali, Bissau, and Singapore based on fieldwork conducted from 2018 to 2020. It found that while shortened supply chains are typical for urban agriculture, their benefits are not arbitrary and depend on local economic, social, and spatial conditions, as well as the supply chain's organization and structure. The positive effects of localized food production are not universal, indicating a need for further research into supply and value chain structures.

Jelena Živanović Miljković, Vesna Popović, Aleksandra Gajić · Land · Serbia (Novi Sad)

A study conducted in Futog, Novi Sad, Serbia, investigated land take (LT) processes and challenges for urban agriculture, focusing on the role and implications of land use planning. Quantifying LT for 2000–2018 using CORINE Land Cover and Urban Atlas datasets revealed that a significant portion of agricultural land in Futog, registered as a Geographical Indication (GI) for Futog cabbage, was planned for conversion into construction land. The study concluded that current land use planning in Serbia is inadequate to ensure the protection of either urban agriculture or GIs.

Megat Nabil Irwan Megat Amerudin, Siti Khatijah Nor Abdul Rahim, Nasiroh Omar, Mohd Suffian Sulaiman, Amir Hamzah Jaafar, Raseeda Hamzah · IAES International Journal of Artificial Intelligence · Global

This study employed the Domain Transformation Approach (DTA) to solve water irrigation scheduling for urban farming, aiming to handle dynamic uncertainties and avoid non-optimal schedules. The proposed model was tested on three different datasets. Results showed that costs were higher in all instances without utilizing the dynamic DTA, indicating that DTA produced higher quality solutions and is a more effective way of scheduling resources with ad-hoc changes.

Claudia Vaderna, Robert Home, Paola Migliorini, D. Roep · Humanities and Social Sciences Communications · Switzerland

This study explored the main challenges faced by eight Community Supported Agriculture (CSA) initiatives in Switzerland and the pathways used to address them. It was shown that while organizers often have enthusiastic ideas, generating sufficient income for a fair producer salary is difficult, posing a challenge to long-term existence. The members' perspective (254 responses) indicated a divergence between organizers' expectations and members' more pragmatic approach.

Elias Danyi Kuusaana, Isaac Ayurienga, Joyce A. Eledi Kuusaana, Joseph Kwaku Kidido, Ibrahim Abu Abdulai · Frontiers in Sustainable Food Systems · Ghana (Bolgatanga)

A study in Bolgatanga Township, Ghana, used field surveys, key informant interviews, and GIS mapping to examine urban agricultural practices. It found that agricultural lands significantly decreased in size and contiguity since 1996 due to urban sprawl, forcing farmers to use segregated plots and undeveloped residential areas which are easily lost to development. The study concluded that urbanization exacerbates food production challenges without policies to protect agricultural lands.

Norma Wong, Marte C. W. Solheim · Edward Elgar Publishing eBooks · Norway

This case study details Tugushan Alp's entrepreneurial journey in Norway, where he pioneered hydroponic lettuce production in a bomb shelter. Alp faced multiple hurdles, including battling regulatory bodies for a legal premise. Despite these challenges, he achieved success and recognition for his innovative urban farming method.

Richard Kofi Asravor, Paul Adjei Kwakwa · African Geographical Review · Ghana

This study compared the food security status of urban dwellers in Accra, Ghana, before and after the COVID-19 lockdown, using a sample of 340 respondents. The research found a significant difference, with 36.4% of households being 'High food secure' prior to COVID-19, but 12.35% becoming 'Very low food secure' post-lockdown. The findings indicate a decline in urban household food security following the lockdown.

Sina Razzaghi Asl, Anahita Azadgar · Frontiers in Sustainable Food Systems · Iran (Tehran)

A study in Tehran, Iran, mapped the spatial distribution and socio-economic attributes of 26 urban community gardens using semi-structured interviews, qualitative analysis, and secondary data from the 2020 Tehran statistical yearbook. The findings revealed a geographical distribution imbalance, with most gardens located in the southern part of the city. Community gardens were mainly placed in areas with lower average land prices, lower median household income, and higher education graduates, indicating an uneven distribution that favors socio-economically disadvantaged areas.

Lenon Musosa, Munyaradzi Davis Shekede, Isaiah Gwitira, Innocent Chirisa, Daniel Tevera, Abraham R. Matamanda · African Geographical Review · Zimbabwe (Harare)

This study mapped the spatial and temporal distribution of cropland in Harare Metropolitan, Zimbabwe, between 1985 and 2019 using Landsat 5 imagery and the Random Forest classifier in Google Earth Engine. The results revealed considerable fluctuations in the cultivated area over this period, influenced by several factors. The study demonstrates the increasing importance of remote sensing for assessing urban cropland and its contribution to food security.