Research & reports

Manuela Maluf Santos, Paulo Eduardo Moruzzi Marques · Estudos Avançados · Brazil (São Paulo)

This article conceptually explores the "locavorism" food activism movement, noting that its practical application can have diverse and even antagonistic effects. To analyze these contradictions, two farmer organizations in São Paulo involved in local consumption circuits were interviewed to understand the potential social and environmental effects of this purchasing model. The abstract does not present the findings of these interviews.

Shrabana Mazumder, Joydeep Saha, Gouranga Nandi, Mrinmoyee Naskar, Jibananda Gayen, Debajit Datta · SN Applied Sciences · India

A study of the Kolkata Metropolitan Area, India, used free and open-source geospatial software and multi-temporal databases to assess land use/land cover change from 1990 to 2020, focusing on the transformation of urban and peri-urban agricultural land, and projected cropland change to 2030 using an artificial neural network module (MOLUSCE). Built-up areas persistently expanded into croplands, wetlands, vegetation, and water bodies throughout the period, with an estimated loss of 181.11 sq km of cropland between 1990 and 2020, concentrated in the northern, eastern, and south-eastern parts of the study area. The 2030 projection indicates a further loss of 15.46 sq km, bringing the cumulative cropland loss to 37.39% of its 1990 extent under current socio-economic and administrative conditions.

Julia Davies, Corrie Hannah, Zack Guido, Andrew Zimmer, Laura E. McCann, Jane Battersby, Tom Evans · Food Policy · Sub-Saharan Africa

This study investigated the association between urban agriculture (UA) and household food security in smaller African cities and towns, using survey data from 2,687 low- and low-middle income households in 18 urban areas with populations of less than 200,000 across Zambia and Kenya. The analysis found that 33% of households in the sample engaged in UA, but there was limited statistical significance in the relationship between UA and household food security. Key barriers identified were settlement formality, property rights, and distance from food retailers.

Azizan Marzuki, Ahmad Sahir Jais · PLANNING MALAYSIA · Malaysia

This qualitative exploratory review, based on a Systematic Literature Review of secondary data, investigated the connection between urban sprawl and its impact on agricultural productivity and food security in Malaysia. The study found that urbanization did affect Malaysia's food security self-sufficiency level, particularly for land-intensive food products like vegetables and livestock, due to the conversion of agricultural lands.

Dauda Rotimi Awoniran, Omotayo Ben Olugbamila, Emmanuel Olufemi Omisore · Analele Universităţii din Oradea Seria Geografie · Sub-Saharan Africa (Lagos)

This study examined urban agriculture practices and land use changes in Lagos Metropolis, Sub-Saharan Africa, over three decades using satellite imagery and primary data from four Local Government Areas. It found that cultivated lands decreased by 28.70% between 1986 and 2000, and by 19.25% between 2000 and 2016. Urban farmlands converted to other uses by 89.48% between 1986 and 2000, and by 75.64% between 2000 and 2016, indicating that food security is under threat as land for urban farmers shrinks.

Lucas Ricardo Souza Almeida, Diego Cesar Alves Lima Verde, Hélder Ribeiro Freitas, Rita de Cássia Rodrigues Gonçalves Gervásio, Elson de Oliveira · Cadernos de Agroecologia · Brazil (Petrolina)

This study analyzed land use and occupation seasonality at the EREMCC Community Garden in Petrolina, Brazil, from August 2018 to March 2019. In August 2018, 73% of the 6,200 m² garden area was uncultivated, indicating a large unexplored area for production. By March 2019, food production increased by 35.71%, with most beds cultivated with cabbage, coriander, and lettuce.

Catalina Cruz-Piedrahita, Caroline Howe, Audrey de Nazelle · Global Transitions · Global

This scoping review analyzed 138 papers to develop a conceptual framework on the impacts of urban horticulture (UH) on public health in the Global North. While UH is proposed as a tool for health improvement, the review notes a lack of systematic information on its benefits, barriers, costs, and risks in these regions. The framework visualizes relationships between UH and public health, providing evidence for both positive and negative connections regarding mental health, physical activity, diet, and socialization.

Barbara Maćkiewicz, Raúl Puente Asuero, Antonio Garrido Almonacid · Quaestiones Geographicae · Spain

This study investigated how urban allotment gardens in Baeza, Andalusia, Spain, affect the city’s sustainable development. The research showed that allotment gardens in Baeza endorsed all three pillars of sustainable city development: ecological, economic, and social. However, it was found that developing broader community relations on the city scale, reviving the declining local grocery market, and disseminating environmental initiatives that allotment gardens could promote and facilitate were missing.

Navin Ramankutty, Vincent Ricciardi, Zia Mehrabi, Verena Seufert · Agricultural Economics · Global

A review was conducted on the production, environmental, and socioeconomic performance of three alternative farming systems: organic, smallholder, and urban agriculture. Organic agriculture offers environmental, livelihood, health, and nutritional benefits but is hampered by lower yields and higher prices. Smaller farms exhibit higher yields and biodiversity but result in lower incomes for farmers. Urban agriculture can alleviate pressure on rural landscapes, provide nutritional benefits to the urban poor, and engage urban dwellers in food system challenges, but it cannot scale up to be a substantial solution on its own.

Héctor Ávila Sánchez · Investigaciones Geográficas Boletín del Instituto de Geografía · Global

This study analyzed the impact and potential of Urban and Peri-urban Agriculture (UPA) on urban food systems, focusing on cities in Western Europe, North America, and Latin America. It concluded that while UPA practices have increased, their presence in urban food systems remains limited, and their consideration in territorial public policies is still marginal. In developed countries, its impact has been primarily therapeutic, landscape-related, and for heritage preservation, while in poorer countries, it has contributed to self-sufficiency for low-income urban populations, public space recovery, social fabric strengthening, and community development.

Julian Cribb · Cambridge University Press eBooks · Global

This paper points out that none of the world's megacities can feed themselves, and food chain risks pose an imminent threat of starvation. It presents concepts such as climate-proof food supplies, novel urban food production systems, the importance of urban permaculture, rewilding, and developing wise consumers as solutions to urban food risk. However, it does not explicitly state that these solutions fully resolve the issue of urban food self-sufficiency.

Kimisato Oda, Christoph Rupprecht, Kazuaki Tsuchiya, Steven R. McGreevy · Sustainability · Japan (Kyoto)

A study in Kyoto City, Japan, examined agricultural land use from 2007–2017 to assess urban agriculture as a sustainability strategy for shrinking cities. Analysis revealed a 10% decline (209 ha) in agricultural land use over ten years, with main post-agricultural uses being residential (40%) and vacant land (28%). The findings indicate that Kyoto City is not currently positioned to benefit from population decline through localized food production.

Gabrielle Roesch‐McNally, Jacqueline Ann Nester, Andrea Basche, Eric Christianson, Emily Zimmerman · Lincoln (University of Nebraska) · United States (Iowa)

Story County, Iowa, despite being in a highly agriculturally productive state, faces significant food insecurity. In 2014, 15.2% of its residents (nearly 14,000 individuals) were food insecure, with 45% of them not qualifying for government assistance. The county dedicates only 2.4 acres of cropland per thousand residents to fruit, vegetable, and nut production, significantly lower than the US average of 32 acres, highlighting a paradox of hunger amidst agricultural abundance.

Jenny Smart, David Tschirley, Francis Smart, Smart, Jenny Cairns, Tschirley, David, Smart, Francis · AgEcon Search (University of Minnesota, USA) · Mozambique

Food system transformation and changes in diet quality were assessed in Mozambique amidst rapid urbanization and income growth. Rising incomes and processed food consumption were found to be associated with a worsening of negative dietary factors. Furthermore, urbanization, controlling for income, was more strongly associated with a worsening of negative factors than an improvement in positive dietary factors. However, owning one's own farm had a positive and significant effect on nutrition for urban households, primarily driven by reduced purchases of unhealthy foods.

Manabika Sheel, Mohammad Bashir Ahmed, Shamim Ahmed Kamal Uddin Khan, Md. Matiul Islam · Fundamental and applied agriculture · Bangladesh (Khulna City)

A study in Khulna City from March to April 2018 interviewed 60 rooftop gardeners to analyze the scenario and problems of rooftop gardening. The study found that gardeners earned very poor economic benefits compared to their expenditures, with most preferring it as a hobby (98.33%) or for aesthetics (90%). Severe problems included excessive heat (91.67%), lack of proper nourishment (87.08%), and roof load (72.92%).

Ibrahim Aliyu Kankara, Hani Farouk · Annals of Geographical Studies · Nigeria (Kano)

This research evaluated potable water distribution problems in Kano municipal, Nigeria. Using data from 384 questionnaires and investigations of water supply institutions, the study concluded that water supply in Kano municipal does not meet demand due to problems such as insufficient water treatment plants, power failure, and funding shortages.

Celile Özçiçek Dölekoğlu, Sema Gün · Turkish Journal of Agriculture - Food Science and Technology · Global

Urban agriculture, practiced by 800 million people globally, offers economic, social, and environmental benefits but also carries risks and adverse effects. This study presents developments in urban agriculture in Turkey and worldwide, discussing all aspects of its effects and outcomes.

Shobha Shrestha · Nepalese journal of geoinformatics/Journal of geoinformatics Nepal · Nepal

Using GIS, remote sensing and spatial metrics, this study analyzed the spatial structure and dynamics of urban land use, including agricultural land use, in Kathmandu Valley, Nepal, over the ten years from 2003 to 2012. Land use changed drastically over this period, with the most pronounced shifts occurring in the agriculture and built-up classes, signaling rapid urbanization; the valley's spatial structure moved toward a more heterogeneous and fragmented landscape, with new, isolated urban patches emerging inside what had been larger, contiguous agricultural patches and breaking them into smaller fragments.

Cécile Faliès · Problèmes d Amérique latine · Chile (Santiago)

This article provides an overview of agriculture around Santiago, Chile, based on fieldwork conducted since 2005. Despite the presence of agriculture linked to Santiago and Valparaiso, and the emergence of some forms like organic farming, it is difficult to classify this as urban agriculture due to the peripheral location and limited number of plots. The study indicates that urban agriculture, as commonly defined, has a limited presence in the Santiago metropolitan area.

Diogo José Amorim de Almeida, Dilamar Dallemole, Arturo Alejandro Zavala Zavala · Revista Ibero-Americana de Ciências Ambientais · Brazil (Varzea Grande)

This study analyzed the urban and peri-urban horticultural production structure in Varzea Grande, Mato Grosso, Brazil, using an exploratory empirical and bibliographic approach followed by Cluster Analysis of primary data from local producers. Despite contributing to food production and maintaining disease-vector-free land, the research found that this activity is in decline. Its low profitability and challenging commercialization process make it unattractive or merely a supplementary income, as small productive forces struggle to sustain themselves against the current market structure and unfavorable social policies.

肇 石原, Hajime ISHIHARA · Institutional Repositories DataBase (IRDB) · Japan

This study analyzed changes in green space components (parks, agricultural land, forests) across Aichi Prefecture, Japan, from 1970 to 2010. While forest area decreased less significantly than agricultural land, and park area increased, the increase in park area was insufficient to offset the reduction in agricultural land. Consequently, the overall green space ratio showed a declining trend in most areas, particularly in Nagoya City and its surrounding regions.

Jin-Hee Ju, Won-Tae Kim, Hui Xu, Young-Han Yoon, Eun‐Young Choi · Journal of Environmental Science International · Global

This study investigated the influence of hydrophilic polymer (HP) mixture ratio on the growth of eggplant (Solanum melongena) for lower maintenance urban agriculture via green roofs. As the hydrophilic polymer mixture ratio increased, the growth index, number of leaves, leaf length, leaf width, and dry weight of shoot and root decreased. Specifically, these values were significantly lower in HP5.0% and HP10.0% treatments compared to the control, and the survival rate was lowest at 56% in the HP10.0% treatment.

Zulfadhli Nasution · · Indonesia (Jakarta, Bandung, Bogor)

This study investigated the relationship between urban farming communities and food sovereignty in Jakarta, Bandung, and Bogor, Indonesia. The findings suggest that the discourse of food sovereignty has not been exposed to urban farming communities. This is attributed to urban farming having different historical roots and social and political characteristics compared to the food sovereignty movement.

卓也 林 · Institutional Repositories DataBase (IRDB) · Japan (Inagi City)

This study examined the management characteristics of direct farm sales outlets and the role of agriculture in urban areas, using pear farmers in Inagi City, Tokyo, as an example. Field surveys confirmed a decrease in pear picking activities and a high ratio of direct sales and home delivery. While familiarity with agriculture has increased due to farmers' cooperation in agricultural experience learning and the establishment of many community gardens, a limitation was identified: to convey the value of urban agriculture to those with low interest, the enhancement of pear picking, allowing easy interaction with farmers on farmland, is required.

Marc van lersel · · Global

Agriculture faces the 21st-century challenge of feeding a growing, urbanizing population while minimizing negative environmental impact. Urban farming has been presented as a potential solution to perceived problems with conventional agricultural production, but its effectiveness as a comprehensive solution is questioned.