Research & reports

Sandesh Thapa, Rakshya Bhandari, Anjal Nainabasti · Ecofeminism and Climate Change · Nepal

A random sampling survey in Dhulikhel, Kavrepalanchok district, Nepal, found that while all respondents perceived rooftop farming as beneficial, many could not practice it due to constraints like fear of roof damage. Practicing farmers also faced difficulties managing rooftop gardens due to a lack of proper knowledge and reliance on non-recyclable planting materials.

Martí Rufí-Salís, Felipe Parada, Verónica Arcas‐Pilz, Anna Petit‐Boix, Gara Villalba, Xavier Gabarrell · Frontiers in Plant Science · Spain (Barcelona)

This study investigated a closed-loop crop cascade system in a Barcelona rooftop greenhouse, using tomato leachates to irrigate five successive lettuce cycles. The results showed that low yields (below 130 g per lettuce plant) were obtained when the cascade system was used during the early stage of the donor crop, as the nutrient amount, especially nitrogen, was insufficient for the receiving lettuce crop. Additionally, electrical conductivity values became too high (near 3 dS/m) at the end of the donor crop cycle, indicating limitations in maintaining optimal conditions throughout.

Alison Hope Alkon, Yahya Josh Cadji, Frances C. Moore · New York University Press eBooks · United States (California)

In North Oakland, California, USA, collaborations between food justice organizations and residents, spurred by gentrification, were explored. The partnership and merger of Phat Beets Produce and the Self-Help Hunger Program were analyzed, initiated after a community garden was used in a gentrification advertisement in 2014. While this collaboration created a strong alliance, it was found to be insufficient to resist the structural forces driving gentrification.

C. K. Cartagena · Southeastern geographer · United States

This paper reviews "Farming While Black: Soul Fire Farms Practical Guide To Liberation on the Land" by Leah Penniman and Karen Washington. The book serves as a step-by-step guide for Black farmers, detailing historical struggles and solutions against oppression and racial discrimination in the farming sector, including cases like Pigford v. Glickman and the over-policing of Ron Finley's property. It offers instruction on obtaining land and resources, farm business plans, land restoration, crop planning, preserving harvests, raising animals, urban farming, and movement building. The book acknowledges obstacles faced by Black farmers and aims to provide a reference for sustaining productive farmland and activism to achieve land autonomy.

Adrián H. Hearn, Thaís Mauad, Chris Williams, Luís Fernando Amato‐Lourenço, Guilherme Reis Ranieri · Journal of Urbanism International Research on Placemaking and Urban Sustainability · Australia (Melbourne)

This article analyzed the phenomenon of urban agriculture promotion by real estate developers and community associations in Melbourne and São Paulo. Developers of upmarket condominiums advertise urban agriculture as a purchasable commodity, but the gentrifying effects of these developments deepen rather than alleviate social and environmental ills. In contrast, community projects in four case studies emphasized urban agriculture's ability to confront the long-term neglect of land, employment, and environment.

Moisés Savian, Mari Inês Caríssimi Boff, Pedro Boff · Cadernos de Agroecologia · Brazil

This study evaluated Brazilian scientific production from 2009 to 2018 on urban agriculture's contribution to food and nutritional security, analyzing 34 selected articles out of 612. It found that while agrobiodiversity is present in urban agriculture areas, pesticide use is a reality in some crop plots. The research suggests urban agriculture must be based on agroecology to avoid environmental contamination and produce healthy food.

Mr. Isaiah ACQUAH, Dr.Sc. Joseph Ato FORSON, Dr.Sc. Theresa Yaaba BAAH-ENNUMH · DOAJ (DOAJ: Directory of Open Access Journals) · Ghana

This qualitative exploratory study in Accra Metropolitan Assembly, Ghana, investigated the effect of urban growth and concretization on urban farming households' livelihoods and food security. The study, using interviews and spatial imagery, found that urban farms face challenges due to inadequate land use planning and support, leading to a loss of farmlands. Significant challenges identified include limited farming space, limited resources, continuous increase in buildings, and inadequate education for urban farmers.

Olivia Lee · Johns Hopkins University eBooks · United States (Chicago)

This study, drawing on affect theory, examines community gardens in Chicago's low-income, primarily Black South Side neighborhoods. It argues that while these gardens offer a spatial break from violence, they appear unable to fully counteract the ongoing marginalization by race and socioeconomic status. The gardens represent a quiet, nascent resistance against neoliberal injustices through intimate human-nature interaction.

Murtah Shannon, Kei Otsuki, Annelies Zoomers, Mayke Kaag · Urban Studies · Mozambique (Beira)

This article examines the implications of global interventionism in African cities for existing claims to urban space, particularly those of farmers, using Beira, Mozambique, as a case study. A historical-political analysis demonstrates that urban farming has been a distinct feature of Beira's urbanism amidst successive and contradictory state-land regimes. A new urban regime, formed by municipal leaders and international donors, aims to erase urban agriculture from the city through urban 'development', indicating a need for better understanding of manifold claims to urban space beyond slum urbanism.

Oso Adeola Abiola · Zenodo (CERN European Organization for Nuclear Research) · South Africa

This review discusses vegetable production in South Africa, focusing on the impacts of root-knot nematodes (Meloidogyne species) on small-scale farming communities. The review highlights that these nematodes are a primary pest, causing delayed crop maturity, reduced yields, poor quality produce, and escalating production costs. This leads to substantial income losses for farmers and the abandonment of community gardens, intensifying challenges for vegetable production and food security.

Justine Lindemann · New York University Press eBooks · United States (Cleveland)

This chapter explores how gentrification in Cleveland, Ohio, impacts Black urban farmers' and gardeners' access to land in disinvested neighborhoods. It examines the ancillary effects of development on alternative land reuse efforts. The study highlights that despite a seemingly endless supply of vacant lots, gentrification negatively affects land access for these communities.

Hayford Mensah Ayerakwa, Fred Mawunyo Dzanku, Daniel Bruce Sarpong · Agricultural and Food Economics · Ghana

Using a sample of 2,004 households in a small and a medium-sized city in Ghana, this study examined urban households' participation in agriculture by disentangling it according to the geography of production — urban versus rural areas — and its implications for food security. The analysis found no evidence that participation in agriculture in general was related to the food security of urban households in this sample. However, urbanites who produced food in both urban and rural areas had better food security in the medium-sized city.

Guillermo Olivera, Kenia Zavaleta · Repositorio Digital Institucional de la Universidad de Buenos Aires (Universidad de Buenos Aires) · Mexico

This study argues that urban and peri-urban agriculture (UPA), along with intra-urban open spaces, constitutes a "second best" land use for 21st-century cities pursuing sustainable growth aligned with the 2030 Sustainable Development Goals — whether through FAO's Greener Cities Strategy, which promotes garden-based UPA against poverty and food insecurity, or through UPA absorbed by city expansion, much of it commercial in nature. Based on analysis of official statistics and fieldwork in the Ejido Tejalpa in Cuernavaca, Morelos, Mexico, the study finds that UPA persists there due to its historical trajectory and access to water and land, existing in commercial form rather than as urban gardens, but not without problems. Its main threat is identified as excessive urbanization and generational change among producers, and its main challenge as achieving greater involvement of urban governments through land management and urban planning, following the experience of other countries where agriculture is given more weight in metropolitan planning.

Pamela Arnette Broom, Yuki Kato · New York University Press eBooks · United States

This chapter examines the gentrification of foodways in post-Katrina New Orleans, combining the author's own experience as a long-term urban gardener with grower interviews. It argues that the emerging narrative presenting urban agriculture as a new idea obscures the city's long-standing tradition of local food production and procurement, and that the new geographic notion of local tends to dissociate from the social and cultural dimensions of preexisting folk foodways; it concludes that the popularity of urban agriculture among newcomers, though well-intended, had the adverse effect of discouraging many long-term residents from engaging with urban agriculture and from opportunities such as entrepreneurship, community health and urban sustainability.

Caren Freitas de Lima, Silvia Regina Nunes Baptista, Susana Arruda, Cristhiane Oliveira da Graça Amâncio · Revista Campo-Território · Brazil

This article analyzes Henri Lefebvre's concept of the "right to the city" in the context of Rio de Janeiro, a Latin American city, combining Lefebvre's framework with a historical bibliographical review of urban requalification and removals in Rio, analysis of official institutional data, and field research. In the 2000s, neighborhoods with a history of agricultural activity in Rio's West Zone — mainly Planning Area 4 (AP4), covering the Vargens region (Vargem Grande, Vargem Pequena, Camorim, and parts of Recreio dos Bandeirantes, Barra da Tijuca, and Jacarepaguá) — became targets of real estate expansion. The State enabled this expansion through urbanistic instruments such as the Vargens Urban Structuring Plan (PEU das Vargens) and the Land Use and Occupation Law (LUOS), which reduce agricultural areas. Although generally neglected in debates over urban struggles, the agroecology-based Carioca Urban Agriculture Network (Rede CAU), acting through the Articulação Plano Popular (APP Vargens), takes up the struggle for the right to the city and for urban planning, asserting that the right to the city is also the right to plant.

Dorothée Boccanfuso, Marie-Ève Yergeau · Cahiers de recherche · Africa

This study presents a diagnostic assessment of the urban and peri-urban agriculture (AUP) sector in Mali, based on a literature review and individual interviews with stakeholders in Bamako, forming the first stage of a research project intended to measure AUP's impact on poverty and food security. The literature review found that few studies measure AUP's impact, that existing results are mixed and inconsistent, and that there is a lack of solid evidence on the topic. The Bamako interviews surfaced the sector's economic, social, and environmental issues in the Malian context and confirmed, from key stakeholders, the relevance and necessity of the planned research project.

Celina Gómez, Christopher J. Currey, Ryan W. Dickson, Hye‐Ji Kim, Ricardo Hernández, Nadia Sabeh, Rosa E. Raudales, Robin G. Brumfield, Angela Shaw, Adam K. Wilke, Roberto G. López, Stephanie E. Burnett · HortScience · Global

This review discusses the application of controlled environment agriculture (CEA) techniques to urban agriculture (UA), driven by increased market demand for local produce. While CEA offers opportunities for year-round production and resource-use efficiency, significant challenges remain due to the high costs of production in urban settings. The review emphasizes that for urban growers to benefit, studies evaluating CEA for commercial food production must consider economic viability.

Mysha Clarke, Melissa Davidson, Monika Egerer, Elsa C. Anderson, Nakisha Fouch · People Place and Policy Online · United States

This paper argues that community gardens should be a prioritized element of green infrastructure to improve cities' adaptation to climate change. Community gardens can reduce urban heat islands, provide ecosystem services, and increase stormwater retention. However, a qualitative analysis of 18 policy documents for Baltimore, Chicago, and New York City, U.S.A., found that green infrastructure for climate change adaptation prioritizes rain gardens, bioswales, and green roofs, but seldom acknowledges the role of community gardens.

Maurice Dasylva, Ngor Ndour, Bienvenu Sambou, Sara Danielle Dieng · European Scientific Journal ESJ · Senegal (Ziguinchor)

In Ziguinchor, Senegal, the peri-urban rice farming system contributes to food security but is ignored by decision-makers and suffers from urbanization and physicochemical changes in rice field soils. An agronomic diagnosis, based on 180 yield squares (1/4m side) installed in 4 peri-urban valleys, showed average yields of 4.79 ± 0.35 t.ha-1. However, urbanization, silting, acidification, and progressive salinization of soils are the main limiting factors for this production system.

Chiara Certomà, Martin Sondermann, Susan Noori · Manchester University Press eBooks · Europe

This chapter critically analyzes the relationship between urban gardening and socio-spatial justice, exploring whether and how urban gardening practices can tackle social and spatial injustices. Urban gardening points out less visible sides of urban governance and planning, unveiling different forms of power, dominance, and resistance to the unequal distribution of benefits and burdens in space. The analysis questions the contradictions in the constitution of urban spaces and their capability to mitigate material, political, and social exclusions, unfairness, and inequalities.

Efrat Eizenberg · Manchester University Press eBooks · Global

This concluding chapter reviews the literature on urban gardening, outlining both enthusiastic approaches that focus on its transformative potential and critical approaches that analyze it as greenwash or a strategy of neoliberal development. The chapter discusses how the book's chapters address this gap in understanding urban gardening and the resolutions and new directions they offer. It states that urban gardening is sometimes analyzed as a form of greenwash and a strategy of neoliberal development.

Daiara Batista Mendes · Geografia em Atos (Online) · Brazil (Pirapozinho)

This article identifies the potentialities of urban agriculture in Pirapozinho, São Paulo, focusing on food and economic use. Based on field research and interviews, the study found that urban agriculture provides quick access to quality products and fosters close farmer-consumer links. However, it also found that urban agricultural practices have not received due governmental attention at national or local scales, despite their potential.

Rainer Einzenberger, Michaela Hochmuth · Digital Commons - Lingnan (Lingnan University) · China (Hong Kong)

An interview with Professor Kin-Chi Lau was conducted in March 2015 regarding the Urban Gardening Project at Lingnan University of Hong Kong. The interview portrayed the project's history, structures, and organizational characteristics, focusing on the challenges and difficulties participants faced in realizing the project.

Tri Andika, Waryenti Deli, P.E.Suryaningsih P.E.Suryaningsih · University Of Bengkulu Law Journal · Indonesia

Residents in Lebong Regency, Indonesia, experienced anxiety due to a landslide at PT PGE's Hulu Lais cluster A site. This landslide resulted in 6 deaths, sinking fish ponds, rice fields, and community gardens, and crop failure. Additionally, residents' drinking water sources were polluted, and drilling caused loud sounds, ground vibrations, hot steam, and dried plants. The drilling also drastically reduced water discharge from the Mubai river, impacting residents who relied on it.

Chiara Certomà, Lorenzo Chelleri, Bruno Notteboom · Urban Studies · Italy (Rome)

This paper investigates informal planning practices and "fluid governance" in urban public spaces, using the case of Parco delle Energie in Rome, Italy, and a comparative analysis of international cases. It found that politically progressive urban gardening challenges traditional governance networks and redefines public space functioning by transforming green spaces into food production and collaboratively managed areas through informal planning. This demonstrates that urban gardening worldwide challenges traditional planning perspectives and governance, turning citizens' dissensus into a productive force.