Research & reports

Paule Moustier · Agritrop (Cirad) · Africa

Case studies conducted in Africa on urban household food supply systems evaluated the relative roles of urban and rural agriculture. These studies highlighted a strong complementarity between urban and rural sources in terms of products and periods, linking these observations to differences in production and marketing systems. To stabilize urban food supply in quantity and quality, support programs for farmers and traders should target both urban/peri-urban and rural areas in a differentiated but articulated manner.

Keiichi Moritsuka, Yoshiyuki Tokunaga, Hiraku Hoshi, Hiroshi Suda · INFRASTRUCTURE PLANNING REVIEW · Global

This paper proposes policies for allotment garden facilities and management, based on a survey of users' consciousness. The survey found that some users rent gardens that do not satisfy their purpose due to a lack of publicly available information about allotment gardens. The paper concludes that garden managers must publicize the purpose of establishing gardens and show eagerness, while users should communicate with managers, guides, and other users.

Tina M. Waliczek, Jayne M. Zajicek · Journal of Environmental Horticulture · United States

Project GREEN, a school garden program, was integrated into seven elementary and junior high schools in Kansas and Texas to evaluate its impact on students' environmental attitudes. Students' environmental attitudes were significantly more positive after participating, with post-test mean scores 0.26 points higher than pre-test scores. Demographic analysis showed that female, Caucasian, and rural students exhibited more positive environmental attitudes compared to other groups.

Gail Feenstra, Christopher Lewis · California Agriculture · United States (California)

A survey of farmers' market managers in California indicated that farmers' markets provide growers with opportunities to expand their businesses through new market venues, value-added products, and connections with agritourism. Rural markets offered strong community support and tourist links, while small-town markets showed the most new vendors and room for growth. Metropolitan markets, though harder to access, yielded the highest gross sales and increased demand for value-added products.

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.

Jane Kolodinsky, Qingbin Wang, Leslie L. Pelch, Kolodinsky, Jane M., Wang, Qingbin, Pelch, Leslie · 1999 Annual meeting, August 8-11, Nashville, TN · United States

A 1999 study tests whether membership activities of Community Supported Agriculture (CSA) farms in Vermont, US, generate utility directly. Based on survey data from Vermont, it finds that both time spent picking up produce at the farm and time spent cleaning and putting away produce at home yield utility directly, and that the direct utility from picking up produce is greater than that from cleaning and putting it away.

Jan L. Flora, Robert Karp, Shelly Gradwell · Iowa State University Digital Repository (Iowa State University) · United States

A 1999 article introduces the "Field to Family Community Food Project," which began in Iowa, US, in 1997. The project was intended to support the "Magic Beanstalk" community supported agriculture (CSA) initiative — a local food system in which farmers provide fresh food, fiber, and related products directly to area consumers — by forming partnerships with churches, social service organizations, Iowa State University, and other community groups.

Angela Moskow · Environment and Urbanization · Cuba

The promotion of urban agriculture in Havana, Cuba, as a response to the acute food scarcity that developed after Soviet aid and trade were sharply curtailed in 1989, is examined through research including interviews with households engaged in urban agriculture. The paper describes the contribution of Havana's 26,000 self-provision gardens to household nutrition and income and to community environmental quality, and discusses lessons that can be drawn from this experience.

Eduardo H. Rapoport, Ana H. Ladio · Bosque (Valdivia) · Argentina

This study gathered information on the potential contribution of non-timber forest products to the food system of developing countries. Natural plant communities normally contain about 10% native vascular species that can be edible, and this proportion can rise to 20-30% in disturbed habitats, or 30-90% when only weeds are considered. Point-sample frequencies of edible individuals recorded along transects in suburban Austrocedrus chilensis forests near Bariloche, Argentina, ranged from 15% to 66%. The probability of finding at least one edible plant in a random 0.25 m² sample (calculated from n=317 samples) was 0.675, rising to near 1.0 when calculated per hectare. In western Patagonia, the number of exotic edible weed species exceeds 90. The mean available edible biomass in vacant lots in Bariloche was 1,253 ± 392.8 kg/ha, based on 193 samples of 1/4 m² each. The study includes a table of quantitative frequencies for edible weeds and a list of 60 native food plants from Patagonian forests.

Hyeong-Seok Choi, Yoshiyuki Amemiya · Journal of The Japanese Institute of Landscape Architecture · Japan

Artificial planting soil layers used in settings such as rooftop gardens typically have a two-layer structure: a coarse drainage layer and a planting layer. Assuming no irrigation, this study examined the required layer thickness based on soil physical properties and weather conditions. Using 30 years of rainfall records for Tokyo, the logarithmic cumulative distribution of the number of days between rainfalls was well fitted by a normal distribution, with the number of days between rainfalls corresponding to 95% and 99% occurrence probabilities being 29 and 64 days, respectively. Numerical calculations for a two-layer system with a 100 mm lower layer examined the relationship between layer thickness and the time until the planting layer wilts on average from initial moisture; at 99% probability, the required planting layer thickness was 236 mm, roughly half the 424 mm required for a single-layer system.

Yasunari Miyake · JOURNAL OF RURAL PLANNING ASSOCIATION · Japan

This study used a Geographic Information System to analyze the location of allotment gardens for elderly users in Gifu City, Japan, measuring both direct distance and road distance from users' homes to the gardens, and ran simulations of changes to garden provision. Increasing the number of garden plots and changing the composition of users shortened the user distance to some extent, while newly opening gardens in the city center — where none previously existed — greatly shortened the user distance.

Sarah Lineberger, J.M. Zajicek · HortScience · Global

A study (HortScience, 1999) developed a teacher curriculum guide, "Nutrition in the Garden," combining horticulture and nutrition lessons, and tested its effect on children's food preferences and eating behaviors using a pretest/posttest attitude instrument developed by Tom Baranowski and a 24-hour food recall journal. The abstract states that results examine the effects of school gardens on nutritional attitudes and behaviors but does not report specific outcome figures.

ETC Agriculture · CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) · Global

A resource guide compiling information on people and organizations with expertise relevant to formulating and implementing urban agriculture policies, plans and projects.

Rie Oba · Journal of the City Planning Institute of Japan · Japan

Since the 1991 amendment of Japan's Agricultural Land Act, agricultural land in designated urban areas has been divided into two categories: land conserved for agriculture and land available for residential use. This study investigated the state of allotment gardens in several such urban areas, focusing on whether the land was designated under the Agricultural Land Act and various related acts governing the establishment of allotment gardens. It clarified the resulting differences in residential-land development potential and farmers' economic conditions between the two categories.

Richard K. Olson, L. Bauer · Lincoln (University of Nebraska) · United States

This is a two-part compilation on small-scale Midwest farming (Part I) and reintegrating agriculture and community in the Midwest (Part II), gathering contributed chapters covering topics such as small and family-sized farms, market gardening, diversified crop/livestock systems, Amish farming agroecosystems, direct marketing, community-supported agriculture, farmers' markets, farmland preservation, and local food-system strengthening in Nebraska, Iowa and the broader Midwest region of the United States.

Jack P. Cooley, Daniel A. Lass · Review of Agricultural Economics · United States (Massachusetts)

This study focused on consumer benefits, specifically cost savings, from Community Supported Agriculture (CSA) membership. It measured quantities of produce in weekly shares for three CSA farms in Massachusetts and calculated retail values. Cost savings, determined by the difference between share prices and retail values for organic produce, ranged from 60% to 150% of share prices for the studied CSA farms.

Godfrey D. Mudimu, Shepherd Siziba, Benjamin Hanyani‐Mlambo · OpenDocs (Institute of Development Studies) · Zimbabwe (Harare)

This study in Harare, Zimbabwe, examined the socio-economics of urban crop production on municipal lands, cultivators' views, and land use conflicts. Urban agriculture, a widespread practice for subsistence maize and food security, is not supported by planners and conflicts with urban land use provisions. Findings revealed a serious lack of environmental concern among cultivators, with most ignoring stream bank regulations and lacking knowledge of environmental effects.

F.E. Trainer · International Journal of Sociology and Social Policy · Global

This paper presents the "limits to growth" perspective, arguing that current living standards in rich countries are globally unsustainable. It criticizes profit maximization and market forces as inappropriate for the needs of the world's poor, and explores how to reduce per capita resource use and environmental impact through small-scale, self-sufficient economies. It suggests that access to communal property and services should replace income as the means to a satisfying life, and mentions the role of community gardens and workers in saving towns.

杨鹤鸣 · 城市问题 · China (Beijing)

This report reflects on the author's participation in urban agriculture research in Beijing's Chaoyang District since August 1997. The author found the experience profound, recognizing the urban agriculture experiment in Chaoyang District as representing the reality of suburban agriculture in China.

Tony Binns, Kenneth Lynch · Journal of International Development · Africa

This paper addresses the escalating demand for fresh foodstuffs in rapidly urbanizing Sub-Saharan Africa, where urban agriculture is a widespread activity. Based on a literature survey and empirical evidence from Kano and Dar es Salaam, it presents a framework for analyzing urban agriculture. The study proposes policy recommendations aimed at enhancing the future sustainability of urban agriculture.

Sonja M. Skelly, Jennifer Bradley · HortScience · United States (Florida)

In Spring 1998, the University of Florida hosted a children's garden competition for approximately 100 elementary schools across Florida. The competition required schools to establish or use an existing garden and for teachers to integrate it into classroom instruction. A random sample of 500 students from participating schools completed an environmental attitude survey at the beginning and end of the competition, and teachers also completed a survey on garden use and its effect on students.

Adrienne Martin, B. Pound · · South Africa

This report describes a visit to South Africa to facilitate a participatory workshop for an urban agriculture project in Sobantu Village, KwaZulu-Natal. The visit's objectives were to identify organizational, social, technical, and financial issues and necessary activities to initiate an urban agriculture project with the Sobantu community, the Institute for Natural Resources (INR), and Department of Agriculture staff. Discussions also included a draft manual on FSR/FPR being prepared by NRI/INR.

安晓宁, 王全辉 · 调研世界 · Global

This study examines the scientific concept of "urban agriculture." Urban agriculture first emerged in developed countries and regions such as Europe, America, and Japan in the first half of the 20th century, then rapidly spread to other developed areas. Its English term (Agriculture in countryside) originally referred to agriculture within metropolitan areas, specifically certain agricultural practices in developed nations.

Christian M. Rogerson, Rogerson, Christian M. · AgEcon Search (University of Minnesota, USA) · South Africa

This paper aims to analyze the existing challenge of urban poverty in South Africa and examine the potential role of urban agriculture as a component of a pro-poor urban development strategy.

M.J. Zwankhuizen, Francine Govers, J.C. Zadoks · Phytopathology · Netherlands

A study in Southern Flevoland, Netherlands, from 1994 to 1996, assessed inoculum sources of potato late blight. It found that 74% of early disease foci in commercial potato fields were linked to nearby infested refuse piles. Infected seed tubers, volunteer plants, and infested allotment gardens appeared to be of minor importance for late blight development in potato fields. However, in August 1994, infested organic potato fields became major mid-season infection sources, spreading the disease to adjacent conventional fields.