Research & reports

Corina Başnou, Geovana Mercado, Åsa Ode Sang, Thomas B. Randrup, Verónica Fabio, Adrián Cabezas, Arnau Lluch, Marc Montlleó, Juan Miguel Kanai, Riccardo Saraco, Olívia Bina, Tom Wild · Nature-Based Solutions · Europe

An overview and guidance for air pollution indicators in nature-based solutions (NBS) for urban green planning and public health were provided, using three case studies in Europe and Latin America. The study noted that approaches including multidimensional indicators in research, planning, and policies are limited, and national standards for some air pollutants are missing with little evidence for health effect thresholds. Findings also indicated that knowledge of pollutant uptake in edible plants can suggest potential human exposure risks.

Ramírez Pérez, Norma Verónica, Padilla Medina, José Alfredo, Cárdenas Manríquez, Marcela, Araujo Rodríguez, Jessica Alejandra, Barranco Gutiérrez, Alejandro Israel, Prado Olivarez, Juan · Dialnet (Universidad de la Rioja) · Mexico

This article analyzes the technical feasibility, energy efficiency, political, and economic viability of urban agriculture (UA) in Mexico, considering its advantages, disadvantages, and conditions favoring soilless cultivation. The study, based on a systematic review and meta-analysis using the PRISMA protocol, aims to provide scientific evidence on UA's technical, economic, and energy feasibility. It highlights that UA faces technical, political, and economic challenges that limit its development and expansion.

Mengqi Shao, Linjun Xie · Journal of Environmental Policy & Planning · China (Shanghai)

This study explored the dynamics of civil society organization (CSO)-government relationships through community gardens as governance spaces in Shanghai. Through empirical case studies of three community garden projects, it revealed how political, practical, and personal spheres shape the evolving dynamics between CSOs and local governments. The research highlighted CSOs' pivotal role in mediating between the state and local communities, but noted that challenges such as power asymmetries persist.

M.Saeed Sheikh, A. G. Mohod, Prasad Chavan, R. T. Thokal, K. G. Dhande, PB Sanap · Advances in Research · Global

This global review examines the development of rooftop agro-voltaic systems (RAVs), which integrate photovoltaic panels with rooftop farming. While RAVs offer benefits like energy production, improved agricultural yields, and environmental conservation, challenges such as efficiency trade-offs, financial constraints, and regulatory gaps limit their widespread adoption. Pilot projects in India demonstrate dual benefits, but these limitations hinder broader implementation.

María Fernanda Ríos Acuña, Rocío Elena Matos Chávez, Nicolás Manuel Herrera Robles, Carlos Enrique Quispe Vargas, Juliana Beatriz Torres Luján · Ibero Ciencias - Revista Científica y Académica - ISSN 3072-7197 · Peru (Lima)

This review article analyzed the effects of school urban gardens on environmental education and child nutrition in public institutions of Metropolitan Lima. Examining 25 national and international scientific studies using the PRISMA methodological approach, findings showed that school gardens strengthen ecological awareness and promote fruit and vegetable consumption. However, structural barriers such as lack of resources, teacher training, and sustained institutional support were also identified.

Tinashe P. Kanosvamhira · Urban Transformations · South Africa (Cape Town)

This qualitative study investigated 13 school-based community gardens in low-income townships on the Cape Flats of Cape Town, South Africa, using semi-structured interviews. It found that while these gardens can enhance food security, nutrition, and community development, most urban community gardens in South Africa face significant challenges related to land tenure rights, often requiring negotiation for school land use. The research highlights both the advantages and the challenges of utilizing school land for community gardens.

Banobe, Maryanto · Zenodo (CERN European Organization for Nuclear Research) · Indonesia (Kupang)

This study analyzed the economic position and dynamics of the agricultural sector in Kupang City compared to East Nusa Tenggara Province, using data from 2014–2019. Results showed that Kupang City's economic structure is dominated by tertiary sectors, and the agricultural sector has an LQ of 0.07 and a DLQ of 0.85, indicating it is a non-base and non-prospective sector. This confirms a structural economic transformation from the primary sector towards service-oriented sectors.

Mais Jafari, Rolf Morgenstern, Jonas Runte · · Germany

This chapter analyzed the co-creation pathway of Nature-based Solutions (NBS) in the Dortmund Living Lab, focusing on urban gardening, food forests, and biodiversity. It critically illustrated missing dimensions that hinder innovation, such as business opportunities, legal frameworks, and planning conditions. These identified gaps indicate challenges in governance and implementation for social innovation through NBS.

Akuto Akpedze Konou, Kossiwa Zinsou-Klassou, Pablo De Roulet, Armel Firmin Kemajou Mbianda, Jérôme Chenal · Land · Togo

This study in Greater Lomé, Togo, interviewed 11 experts and surveyed urban farmers to compare their perceptions of urban agriculture and health. The findings reveal a disconnect: urban farmers identify various challenges, including health-related difficulties, while experts tend to assume different health concerns, highlighting a misalignment between the perspectives of planning and design experts and urban farmers.

Margarethe 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.

Stefan Galley, Rita Saleh, Patrick Bottazzi · Journal of Rural Studies · Switzerland

This qualitative study compares three Swiss communal agricultural prosumption (CAP) types: allotment gardens (AGs), community gardens (CGs), and community supported agriculture (CSA), using Grounded Theory. It found that community-centred CAPs (CSAs, CGs) generate political agency but face financial barriers limiting participation. Individual-centred CAPs (AGs) offer autonomy but have high knowledge requirements and lack political leverage, posing crucial challenges for long-term viability. The study concludes that targeted policy and institutional strategies are needed to ensure the continuity of all CAP types.

Nagwa Babiker Abdalla Yousif, Shadia Abdel Rahim Mohammed, Enaam Youssef, S. Behari · Sustainability · Sudan (Khartoum State)

An interview study was conducted with 100 female farmers in Omdurman’s Algamwai area, Khartoum State, Sudan, from 2022 to 2023. This research examined the intersection of gender, technology, and socioeconomic equity in digital urban agriculture. It showed that despite structural inequalities, including 45% restricted land ownership, 5% limited credit access, and inadequate extension services, female farmers are driving innovation and sustainability. Digital urban agriculture provides income opportunities (76% rely on it) and serves as a platform for equitable participation, though systemic disparities need to be addressed.

M.M. Rasmuna, VGR Chandran, J.S. Keshminder · Malaysian journal of consumer and family economics/Malaysian Journal of Consumer and Family Economics · Malaysia

This study explored challenges in maximizing the capacity of urban farms for economic viability and sustainability in Malaysia. Through in-depth interviews with urban farmers in several case studies, five key challenges were identified: financial, human capital, environmental, institutional, and psychosocial. These challenges impede the economic viability and sustainability of community urban farming.

Cindy Vong · Journal of Food Law & Policy · Global

This Note argues that municipalities in the United States should permit on-site slaughter of backyard chickens on private residential property. Historically, local governments codified the separation of residential and agricultural uses, leading to bans and restrictions on urban agriculture. The current regulatory vacuum for urban agriculture creates conflicts and uncertainties, and allowing backyard slaughter could strengthen local food systems and regulate a growing urban practice.

Ylva Wallinder, Maria Langa · Environmental Sociology · Sweden

A study investigated the consequences of institutional policy change on urban gardening practices in Swedish municipalities over the last decade. Local sustainability policies have led to an increasingly business-centered model, which clashes even with entrepreneurial gardens. This shift caused associational gardening to give way to an extended focus on entrepreneurship and food production, representing a "green rationalization" of gardening practices in urban sustainability policies that hinders their sustainability potential.

Joshua Zeunert, Scott Hawken, Josh Gowers · Land · Australia (Sydney)

A critical GIS analysis was conducted for Sydney and neighboring regions in NSW, Australia, to understand and advocate for Sydney's food production capacity. The study challenged the notion that Sydney's metropolitan landscape has low inherent biophysical quality for agriculture. Despite current metropolitan planning policy that marginalizes agricultural productivity, datasets revealed western Sydney is biophysically well suited for agriculture. Sydney's overall agricultural capacity was found to be comparable to five of six other coastal regions of NSW and superior to at least two, challenging current planning orthodoxy and policy.

Tanvir Ahmed · European Economic Letters (EEL) · Ethiopia (Addis Ababa)

This study examined factors influencing the growth of Micro and Small Enterprises (MSEs), including urban agriculture, in Bahir Dar city administration, Ethiopia, surveying 385 business owners, managers, service providers, and local leaders. Multiple regression analysis found that entrepreneurial traits, management and marketing abilities, technology, access to funding, market sufficiency, and legal/regulatory frameworks affect MSE growth. However, the survey revealed that many MSEs received lengthy and intricate legal notices, indicating a need for simpler government processes for licensing and registration.

Grażyna Wiejak-Roy, Jaideep Roy, D. Andrew · Land Use Policy · Poland (Warsaw)

This study examined the market for allotment gardens in Warsaw, Poland, using a mixed-method approach including thematic archival analysis of regulations and hedonic regression modeling on posted offers. The findings indicate a poor transaction framework, pricing sensitive to legal and illegal private investments, and prevalent illegal rent-seeking on land. Additionally, increasing investment in allotment gardens was found to reduce biodiversity.

Tresia Manalu, Nadya Stefania Hutauruk, Sri Rahayu Sinaga, Riza Indriani · Jurnal Ecoment Global · Indonesia (Medan)

This descriptive qualitative study analyzed external factors affecting the Rumah Anggur Ardo nursery business in Medan, Indonesia, using PESTEL and Porter's Five Forces frameworks. Findings indicate a relatively favorable competitive environment, with urban farming as a hobby presenting a main opportunity. However, significant challenges include high rainfall damaging seedlings and the absence of material support from the government.

A. Bayat, H. Govera · Suid-Afrikaanse tydskrif vir landbouvoorligting/South African journal of agricultural extension · South Africa (Cape Town)

This study descriptively investigated the vulnerability to shocks and pressures of the Philippi Horticultural Area (PHA), a key urban food-producing region in Cape Town, South Africa. Data were collected through surveys with stakeholders from government, the private sector, NGOs, private individuals, and informal settlers. Key findings revealed insufficient governance commitment, a lack of multi-stakeholder collaboration, and the growing threat of urban development on agricultural land.

Noémie Régeard · L’Espace Politique · Congo

This article explores the circularity of organic matter streams in Nkayi, an intermediate city in Congo, through interviews and observations. The qualitative inquiry reveals the coexistence of institutional household waste streams, supported by a development project, and informal organic matter streams, identified through intra- and peri-urban agricultural practices. These streams are subject to various socio-territorial, political, and economic tensions.

Peng Gao, Shuochen Xiao, Fara Diva Mustapa · Climate Risk Management · Global

This comprehensive review synthesized research on urban and peri-urban agriculture (UPA) globally, specifically within the context of its advantages, challenges, and climate change mitigation and adaptation efforts, including technological innovations and policy frameworks. The review demonstrated UPA’s ability to advance social interactions, improve urban microclimates, mitigate the urban heat island phenomenon, and provide essential ecosystem services. However, UPA is limited by scarce land resources and soil contamination, along with water management challenges and regulatory frameworks.

Claudia Rochael Oliveira · Terra Livre · Global

This article argues that while vertical farms (VFs) are often presented as indispensable for sustainable cities, their purported sustainability is difficult to achieve without structural changes to reduce social inequalities. Critiques of urban agriculture, including VFs, point to their contribution to gentrification, racialization of space, and vulnerability to real estate capital, indicating a critical finding regarding equity. The article advocates for VFs to be appropriated by social movements to foster critical stances against conventional agriculture and catalyze urban utopias.

Henry Mensah · City and Environment Interactions · Ghana (Kumasi)

This study investigated adaptation practices and challenges among 85 urban farmers across three locations in Kumasi, Ghana. Farmers employed strategies like planting local crop varieties, expanding farms, and relocating. However, these strategies are hindered by institutional and technological limitations, financial constraints, lack of climate information, and delays in extension support, indicating significant governance challenges.

Lena Farley · Scholarship @ Claremont (The Claremont Colleges) · United States (New York City)

This thesis compares Battery Park City and Alphabet City in Manhattan, examining how they embody New Urbanist principles despite different planning approaches. While both neighborhoods show core New Urbanist characteristics, the research raises critical questions regarding community engagement in master-planned developments and the mitigation of gentrification in evolving urban landscapes.