Research & reports

David R. Koenig · BIOS · United States (Sacramento)

This research project, conducted at the University of California, Davis, aims to understand how elevated soil lead levels may affect urban gardening activities in Sacramento, CA. The study investigates the distribution of soil lead levels in the city and how knowledge of this information impacts the local community. Elevated soil lead levels are identified as a potential barrier to urban gardening.

David Adams, Alister Scott, Michael Hardman · Geografiska Annaler Series B Human Geography · Global

This article examined how planning practice, exemplified by permaculture and guerrilla gardening case studies, can be rooted in confrontation and legal challenge, hindering innovative practices. The findings confirmed that spatial planning theory is largely "disintegrated" from much contemporary planning and environmental practice and wider sustainability discourses. This suggests that planners and decision-makers' prescribed and constrained management of space can impede practices with significant societal and environmental benefits.

Jenny Calabio, Ma. Luisa Albacete · WVSU Research Journal · Philippines (Iloilo City)

This study, conducted from July 2007 to July 2008 at the Urban Agriculture Demonstration Site in La Paz, Iloilo City, evaluated soil media and ameliorants for container-grown green onion, pechay, and tomato. Pure compost was found to be the best medium for increasing yields. However, the use of IMO and rice hull as soil ameliorants did not increase yields for the three tested vegetables, and rice hull generally reduced pechay yields.

Minjae Kong, Kwang-Lai Park, Jin-Kwan Son, Ji-Hoon Shin · Journal of the Korea Society of Environmental Restoration Technology · South Korea (Seoul)

This study investigated the characteristics of rooftop gardens (farms) in 40 areas in Seoul, Korea. Cabbage, lettuce, pepper, and mini-tomatoes were the most preferred vegetables and fruits. Problems observed in rooftop gardens during cultivation included drainage systems, soil management, the cost or quality of planting mats, and diseases and insects.

Leigh Whittinghill, D. Bradley Rowe · Renewable Agriculture and Food Systems · Global

Urban agriculture faces limitations including competition for space, lack of formalized land use rights, and health hazards from food contamination. Green roof technology is proposed as a method to alleviate these issues, potentially reducing the use of contaminated land and water at ground level. However, for large-scale implementation, installation costs must be reduced, roof weight limitations assessed, and appropriate management practices developed.

José Luis Galdeano Tostado · Creatividad y sociedad: revista de la Asociación para la Creatividad · Global

This paper observes an increasing awareness of environmental issues and neighborhood action in city centers, with concepts like urban gardens and self-managed spaces becoming more familiar. It suggests that vacant lands and unused building sites in cities offer significant potential for citizens' creative initiatives. The abstract does not present any specific findings on governance challenges or critical interventions.

Emma Schroeder, Almuth Koby · · United States

In a 2010 interview, Almuth Koby shared her memories of the Eagle Heights Community Garden, including her time as president of the Community Gardens Committee. She described challenges such as members failing to fulfill their duties and the issue of abandoned plots, indicating governance difficulties within the community garden. Koby also recounted her personal gardening journey, from being mentored to mentoring others and learning from diverse cultures.

Felipe de Jesús Cruz Celis, Héctor Montiel Campos · · Global

This study aimed to propose sustainability in urban agriculture through the use of hydroponic technology for agricultural production. Through documentary research and expert interviews, diagnostic criteria and sustainability indicators were determined, making hydroponics an option for producing food in reduced spaces. The results indicate that urban agriculture, due to its spatial scope, has limited possibilities for scaling up to the formal market, but can respond to family self-consumption needs and improve nutritional and higher quality foods.

Yali E. Woyessa, Etheresia Pretorius, Pieter S. van Heerden, M. Hensley, L. van Rensburg · WIT transactions on ecology and the environment · South Africa

This field survey in the Modder River basin, South Africa, investigated the potential expansion and implications of a rainwater harvesting technique introduced to small-scale farmers. While a rapid spread within home yard sizes was expected, no significant spread to community gardens or beyond was anticipated in the short term. This limitation was attributed to socio-economic constraints, including poverty and a lack of appropriate tools and basic farming skills.

智 藤田, Satoshi FUJITA · Institutional Repositories DataBase (IRDB) · Japan

At Keisen Women's College farm in Japan, the potential of using Low-Input Sustainable Horticulture (LISH) and vegetable gardening as environmental education materials was investigated over 15 years, starting in 1984. The study found that 16 different vegetable varieties could be grown organically, but cucumbers, other fruit/vegetables, and Cruciferae were virtually impossible to grow organically. However, damage could be reduced for some varieties through specific cultivation methods, and the vegetable garden was found to maintain beauty even in cold seasons and provide a suitable hands-on learning experience for environment and food.

Lee M · PubMed · Ethiopia

In Ethiopia, urban agriculture faces significant challenges due to government disapproval of public land use for farming and difficulty in obtaining credit. A 1983 survey in Addis Ababa found that 17% of 1352 households produced their own food on less than 25 sq. meters, with 90% of non-farmers citing lack of land. Despite urban agricultural cooperatives demonstrating 70% higher member income, their lack of government legalization prevents access to loans for productivity improvement.

E. F. Schumacher · Blond & Briggs · United Kingdom

E.F. Schumacher's 1973 book challenges the mainstream "bigger is better" economic ethos, advocating small, "appropriate" technologies as an alternative. Its four parts cover the modern economy, resources, the developing world, and organization/ownership; in 1995 the Times Literary Supplement named it one of the 100 most influential books since World War II.