Research & reports

Yan Zeng · Nongye xiandaihua yanjiu · China

Guangzhou's urbanization necessitates modern urban agriculture, which has evolved from suburban agriculture to a modern form characterized by intensification, marketization, industrialization, high technology, and mechanization. While modern urban agriculture in Guangzhou possesses internal advantages and faces significant opportunities, its development is constrained by internal weaknesses and external threats. To advance sustainable development, improvements are needed in layout, ecological environment protection, agricultural standardization, optimization of agricultural industry structure, agricultural brand and logistics system construction, and investment and financing mechanisms.

Toni Y. Sims-Muhammad · · United States (South Louisiana)

This project examined the impact of Hurricanes Katrina and Rita on existing food systems in Lafayette, Acadia, Evangeline, St Martin, and St Landry parishes, with a focus on home and community gardens. The researcher interviewed 57 home/community gardeners and farmers and conducted a survey on pre- and post-Katrina/Rita food sustainability problems, challenges, and perspectives on future food systems.

Yugo YAMAMOTO, Asami ORITA, Motoyuki NAGAI · Studies in Regional Science · Japan (Osaka)

A questionnaire survey was conducted among LOHAS (Lifestyles of Health and Sustainability) and general consumers in Osaka Prefecture to identify sustainable lifestyles related to food production and consumption and evaluate their effect on CO2 emissions. LOHAS consumers tended to participate in local food production activities and make purchasing decisions based on health and environmental consciousness. Their total daily life CO2 emissions were 15% lower than regular consumers, but their transportation-related CO2 emissions were higher due to roundtrips to local farm shops.

Seungmin Lee, Alexandra Nan, Meredith Kealty, Kevin Pan · cIRcle (University of British Columbia) · Canada

This report assesses irrigation systems for a new rooftop garden at the Student Union Building (SUB) in Vancouver, Canada, which aims for LEED Platinum+ certification. Micro-irrigation is recommended due to limited space, the need for high water efficiency, and a low carbon footprint. Micro-irrigation systems apply water directly to plants, reducing evaporation and energy costs, with an observed 80% improvement in water efficiency compared to conventional practices.

Avi Friedman · Island Press/Center for Resource Economics eBooks · Global

This chapter discusses the problems of conventional landscaping, which requires excessive water, maintenance, and chemicals, leading to resource depletion and pollution. Alternative practices such as edible landscaping and xeriscaping are gaining traction in residences, as they can significantly reduce adverse environmental effects while maintaining aesthetic value. The principles and applications of these methods are discussed in this chapter.

Andrew Schlesinger · ScholarWorks -A service of University of Vermont Libraries (University of Vermont) · United States (Cherry Hill)

This paper highlights the high dependency of U.S. suburban communities on fossil fuels, particularly oil. It states that while global oil supply is projected to decline, few suburban communities are currently planning for "life after oil." Presented as a proposal for the Willowdale Community Garden, the abstract does not state specific research or its findings, nor an analysis of how community gardening addresses this challenge.

José Luis Fernández de Casadevante, Nerea Morán Alonso · · Global

This article reviews the uses of the term resilience in the urban domain and examines methods for applying sustainability to urban environments. It focuses on the role of urban and peri-urban agriculture, arguing that their scope extends beyond mere food production. These practices generate spaces for developing alternative city models, fostering conviviality, and illustrating an alternative to the current agri-food system.

· · Global

This paper proposes Continuous Productive Urban Landscapes (CPULs) as a complement to the compact city model, arguing that urban food production contributes to environmental sustainability. The CPUL model suggests that not all brownfield sites must be built upon, while still maximizing sustainable returns from land use. This combination is envisioned to create a new type of city.

Sarah Bell, Cristina Cerulli · UCL Discovery (University College London) · United Kingdom (London)

A case study of a newly established community garden in London was analyzed. The study used the multi-level perspective on transitions to sustainable development by Grin et al. (2010) and modeling of cities as complex systems by Wilson (2010a) and Batty (2005) to analyze the potential for emerging community gardens to contribute to transitions to sustainable urban food systems. Urban agriculture is considered a core element for the future of sustainable cities.

Wu, De-Hui, Wu, De-Hui · AgEcon Search (University of Minnesota, USA) · China (Zhengzhou)

This paper analyzes the competitive power of Zhengzhou urban agriculture from the perspectives of production factors, demand conditions, related and supporting industries, business strategies and structure, and horizontal competition, based on the basic theory of the Diamond Model. It introduces cluster development as an effective approach to enhancing the competitive power of Zhengzhou urban agriculture. Finally, it presents countermeasures and suggestions such as optimizing spatial distribution for cluster development, cultivating leading enterprises, optimizing organizational forms, and actively developing low-carbon agriculture.

고성철, 김수현, 김경묵, 장재수, 이은희 · 한국생태환경건축학회 학술발표대회 논문집 · Global

This study focused on implementing a functional rooftop garden using biochar and the microbial consortium BM-S-1. Biochar amendment reduced heavy metal (Pb and Zn) runoff and maintained more moisture to stimulate plant growth, but it did not maintain NO3- and PO43-. The amendment of biochar and BM-S-1 somewhat inhibited the growth of broadleaf liriope, while biochar amendment increased tolerance to storm carrying salt.

Se-Kun Kim, Seung-Hee Han · Journal of Korean Society for Geospatial Information Science · South Korea

In Kimje-si, South Korea, land use changes were analyzed and future changes beyond 2030 were forecasted using LANDSAT TM imagery, HSB transformation, and a Markov Chain method with GIS data. Geographical features were found to have the greatest influence on land use changes, with 21.67% of mountain lands predicted to become farmland and 13.11% to become city areas.

Takao Ugai · ScholarSpace (University of Hawaii at Manoa) · Global

This investigation aims to develop a new urban scheme for "Cultivating Urbanism" by adapting agricultural practices into existing urban fabrics to create pedestrian-friendly, mixed-use, high-density cities filled with agriculture. The study analyzes the history of urban systems and agriculture, drawing on New Urbanism and Agricultural Urbanism to propose new urban typologies. It investigates the paradigm of ecology, lifestyle, food products, and physical and psychological benefits, using Shinjuku, Tokyo, as a case study for applying urban agriculture methodologies to various building prototypes.

Danny Simatele, Tony Binns, Munacinga Simatele · Journal of Human Development and Capabilities · Zambia (Lusaka)

This field-based research in Lusaka, Zambia, examines the impact of climate change and urban governance on urban agriculture, which serves as a source of food and income for poor households amidst deteriorating economies. The study finds that urban agriculture is often excluded from urban development and planning policy, posing significant challenges for small-scale farmers to achieve food security. A lack of policies supporting the urban poor, combined with climatic changes like drought and flooding, makes it difficult for households to adapt to the changing urban environment.

Silvio Caputo · Kent Academic Repository (University of Kent) · United Kingdom

This paper argues for a new role for urban agriculture in developed countries, focusing on environmental, social, and economic benefits. While urban agriculture can contribute to a low-carbon society and food access, it is not currently part of UK government strategies for food security. For urban agriculture to achieve its potential, it needs to become economically viable, requiring research into highly productive methods and business models utilizing local urban resources.

Zhu Qing-hai · Ecological Economy · Global

This paper describes a new cultural movement in agricultural food emerging in Western developed countries, driven by concerns over food safety, environmental pollution, global climate change, and inequality. This movement encompasses community-supported agriculture, food miles, and fair trade. These initiatives are presented as ensuring food safety, promoting regional economic development, safeguarding global fairness and justice, and influencing global environmental improvement.

Mulala Danny Simatele, Tony Binns, Munacinga Simatele · Journal of Environmental Planning and Management · Zambia (Lusaka)

This paper, based on recent field-based research in Lusaka, Zambia, examines the relationships between urban agriculture (UA) and extreme weather conditions, and their impact on the livelihood options of the urban poor. Despite its significance as a source of food and income in many sub-Saharan African cities, UA has not been integrated into urban development and planning policy and has come under increasing pressure from extreme weather events like droughts and flooding over the last two decades.

Wenjuan Hu · Tianjin Agricultural Sciences · China (Nanchang)

This paper analyzed the competitive power of Nanchang urban agriculture using the Diamond model. The analysis considered production factors, demand conditions, related and supporting industries, business strategies and structure, and horizontal competition. The study presented countermeasures and suggestions, including developing low-carbon agriculture and optimizing organizational forms.

Rolando León Aguilar, Ramón Liriano González, Dania Bárbara Núñez Sosa · Centro agrícola · Cuba

A study at the intensive garden of the Universidad de Matanzas in Cuba evaluated the effect of organic matter and vegetative ground cover on water resource sustainability for urban agriculture, growing lettuce and cucumber. Using a randomized block design with six treatments and five replicates, soil moisture content and yield components were measured and analyzed with Tukey's test at 95% confidence; organic matter and vegetative cover increased soil water content and retention by more than 10% compared with bare soil, and both applied singly or combined produced a positive response in the yield components of lettuce and cucumber.

엄기철, 정필균, So Hyun Park, 유성녕, 김태완 · · South Korea

A study quantitatively evaluated the effect of vegetation on urban heat island mitigation across six cities in South Korea, analyzing climate change data over 30 years (1979-2008) and estimating evapotranspiration (ET), CO2 uptake, O2 emission and ozone concentration. The hottest period was late July to early August, and the highest 10-day average urban ambient air temperature (UAAT) over the 30 years was 35.03°C. The mean maximum ET of rice and soybean in urban areas was 6.86 and 6.00 mm/day, respectively. Rice and soybean cultivation lowered UAAT by 10.5°C and 3.0°C in Suwon, while the differences between UAAT and canopy temperature at urban paddy and upland fields in Ansung were 2.6°C and 2.2°C. Urban gardens in Suwon lowered UAAT and building surface temperature by 2.0°C and 14.5°C, respectively. CO2 uptake by rice and soybean was estimated at 20.27 and 15.54 kg CO2 per 10a per day, and O2 emission at 14.74 and 11.30 kg O2 per 10a per day. During the hottest summer period, ozone concentrations were estimated to be reduced by 21.0, 8.8, and 4.0 ppb through rice cultivation, soybean cultivation, and urban gardening, respectively.

Ileana Cerón Palma · TDX (Tesis Doctorals en Xarxa) · Europe

This doctoral dissertation proposes urban-system strategies for reducing energy consumption and greenhouse gas emissions by introducing eco-innovation into buildings across two economically, socially, and climatically different contexts: Mexico and Spain. For Mexican social housing, it examines an eco-retrofit strategy combining efficient eco-technologies, shading and insulation (roof shading, wall overhangs, window and roof louvers, green roofs), and food production (tomatoes), calculating cooling energy demand and the cumulative energy and CO2 emissions associated with shading materials. For Spain, it examines barriers and opportunities for installing intensive food-producing greenhouses on rooftops of buildings in Mediterranean European cities through multidisciplinary expert seminars, and analyzes potential heat-flow synergy between a building and a rooftop greenhouse focused on winter heating energy demand for a service building in Barcelona. Results indicate that eco-technologies can reduce annual energy consumption in social housing by 31% (35.7 kWh/m2/year), roof-shading strategies save 126 kWh/m2/year, and tomato production in social housing in Mérida, Mexico could contribute a reduction of 662 gCO2eq per kg of tomatoes produced.

Eleni Katrini · KiltHub Repository · Global

A 2012 thesis (KiltHub Repository) reviewed multiple systems -- urban agriculture, decentralized water management and treatment, and energy production from waste -- through literature review and case studies. The goal was to build a toolkit for urban regenerative environments to introduce these systems to designers, with its key component being a quantitative link between each system's spatial demands and its efficiency.

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.

H. de Zeeuw, R. van Veenhuizen, Marielle Dubbeling · The Journal of Agricultural Science · Global

This paper summarizes the available evidence regarding the potential of urban agriculture to respond to key urban challenges and reviews the perspectives on urban agriculture applied by local and national authorities.

Yan Shi, Cunwang Cheng, Peng Lei, Tiejun Wen, Caroline Merrifield · International Journal of Agricultural Sustainability · China (Beijing)

This paper examined the relationship between the Chinese middle class and sustainable agriculture, from the perspective of establishing and operating Beijing's first Community Supported Agriculture (CSA) farm, amidst growing middle-class interest in "green" and sustainable food. The study discussed the farm's environmental and institutional sustainability, and explored the potential for future success with CSA models in China based on evidence from this case.