Research & reports

J.B. van Lier, G. Lettinga · Water Science & Technology · Global

This paper discusses integrated environmental protection and resource conservation (EP&RC) concepts for managing industrial and domestic wastewaters, particularly in water-scarce regions. EP&RC aims for minimal consumption of energy, chemicals, and water, and maximal reuse of treated wastewater and residues, transforming wastes into resources for water, fertilizers, and soil conditioners. Anaerobic treatment is presented as a core technology for mineralizing organic compounds, stimulating urban agriculture near large cities by linking environmental protection and agricultural practices.

Laura Stocker, Kate Barnett · Local Environment · Australia (Western Australia)

This paper reviews the types and roles of community gardens, which are managed by community members and contribute to Local Agenda 21 planning and sustainable communities. It presents a case study of a community garden in Western Australia, analyzing lessons learned and the potential contributions of such gardens to physical, ecological, sociocultural, and economic sustainability. Community gardens produce fresh organic food, create community spaces, and disseminate community science.

Koji ITONAGA · Journal of the City Planning Institute of Japan · Global

This paper describes alternative urban designs, including permaculture, eco-village movements, cohousing, community gardens, and city farms. Based on data gathered from international conferences and research in Australia, America, and Europe, the author proposes "Permaculture-City" as a restructured city model. This model integrates habitation with food production areas and eco-villages.

James R. Preer, Ahmed N. Abdi, Harkewal S. Sekhon, George B. Murchison · Journal of Environmental Science and Health Part A Environmental Science and Engineering and Toxicology · Global

This study investigated cadmium (Cd) and zinc (Zn) concentrations in vegetables grown in community gardens on different urban soils. Vegetables from a low-pH urban soil without contamination history showed higher Cd and Zn levels than those from a reclaimed landfill with digested sewage sludge, and also higher than a low-metal, neutral-pH site. Liming on the low-pH site reduced Cd and Zn concentrations in beet, lettuce, radish, and Swiss chard leaves, reaching background levels after four years. The findings indicate that soil pH is more important than total soil Cd and Zn in determining vegetable metal availability.

Jac Smit, Joe Nasr · Environment and Urbanization · Global

This article describes how urban agriculture can transform cities from mere consumers of food and agricultural products into sustainable generators of these products. It focuses on using wastes and idle land and water bodies as resources to achieve resource conservation and health improvement.

Sam Love · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · Global

This paper discusses contemporary industrial societies' reliance on extensive resource networks and proposes an alternative: moving towards self-sufficient small loop and flow systems. It describes examples of short loop arrangements in urban agriculture and solar energy housing, advocating for decentralization and diversity.

Diana Paola Betancurth Loaiza, Natalia Sánchez Palacio, Jorge Lino Moreno Aricapa · Repositorio Universidad de Caldas · Colombia

This report details the experience of implementing the Urban Community Garden in the Villa Juanita neighborhood. The project focused on fostering urban agriculture as a strategy to improve food security and promote sustainability within the community. The garden became a space for community participation where diverse sustainable agricultural practices were integrated. Through this project, social cohesion was strengthened, environmental education was promoted, and spaces for interaction and collective learning were generated.