Research & reports

· Wikipedia (español) · Spain

A Wikipedia article on the Huerta de Valencia, the historic agricultural belt surrounding the city of Valencia. Origins trace to Roman settlement, but the irrigation infrastructure that shaped the current landscape was developed during the Al-Andalus (Islamic) period. Nine major irrigation canals (acequias), including Quart and Mestalla, are governed by the Tribunal de las Aguas de Valencia, inscribed on UNESCO's Intangible Cultural Heritage list.

· Wikipedia (English) · Spain

An English-language Wikipedia article on the Horta of Valencia, the historic agricultural area surrounding metropolitan Valencia, covering 631.9 km2 with a 2019 population of 1,567,118. Its traditional Arab-era irrigation system was designated a FAO Globally Important Agricultural Heritage System (GIAHS) in 2019 as the 'Historical Waterscape of l'Horta de Valencia.'

· Wikipedia · Canada

Lufa Farms is an urban agriculture company founded in 2009 in Montreal, Canada, that operates commercial hydroponic greenhouses on building rooftops. It runs four rooftop greenhouses, employs about 200 people, and delivers roughly 20,000 baskets weekly to more than 500 pickup points across Quebec.

· Wikipedia · United States

Gotham Greens is a U.S. company founded in 2009 by Viraj Puri and Eric Haley that grows lettuce, herbs, and related products via hydroponics in rooftop greenhouses. Its first greenhouse (15,000 sq ft) opened in Brooklyn in May 2011, and as of 2026 it operates 13 facilities totaling over 1.8 million square feet across New York City, Chicago, and other states. The company claims up to 30 times the production efficiency per acre versus conventional field agriculture, up to 90% less water use, and 97% less land use, and raised $310 million in 2022 (cumulative funding of $440 million).

Municipalidad de Providencia · Municipalidad de Providencia · Chile

A municipal announcement for the 2026 Harvest Festival (Festival de la Cosecha), organized by the Municipalidad de Providencia in Santiago, Chile. The free family event runs from 10:00 to 18:00 on June 20, 2026, at the Espacio Verde Urbano on Padre Mariano 140, featuring a producer market of seasonal vegetables, seeds, and artisanal products, live cooking demonstrations, a home garden workshop, puppet shows, a giant squash competition, and musical performances.

Ceccanti F., Bischi A., Desideri U., Baccioli A. · Energy Conversion and Management · 国際比較（トロンハイム・上海・ドバイを想定したモデル計算）

Filling a gap left by studies that assessed vertical-farming energy use and cost-effectiveness with simplified models, this paper isolates how individual input parameters drive efficiency, sustainability and economic viability using a detailed modelling framework with sensitivity and correlation analyses. It evaluates 162 scenarios combining three levels of temperature, photosynthetic photon flux density (PPFD) and CO2 concentration across the socio-environmentally distinct Trondheim, Shanghai and Dubai regions, at two insulation thicknesses. Because of HVAC and dehumidification, crop productivity stays optimal regardless of insulation or external climate. PPFD dominates growth (correlation 0.85), ahead of CO2 (0.36) and temperature (0.22), and also drives energy consumption (0.73). Lowest specific energy consumption coincides with lowest productivity (55 kg/m2), and the cheapest levelized cost of lettuce came at 24 degC, 250 umol/m2s PPFD, 1400 ppm CO2 with insulation (102 kg/m2). Only decarbonised energy systems can support vertical farming without raising CO2 emissions relative to imported lettuce.

Glaros A., Newell R., Pizzirani S., Newman L. · Urban Transitions · カナダ・ブリティッシュコロンビア州ローワーメインランド（都市圏）

Using the Lower Mainland of British Columbia, Canada as a case study, this paper defines and assesses the tradeoffs across six common scenarios for controlled environment agriculture (CEA) implementation. Land use considerations and operational priorities define the scenarios and weight the modelling criteria. Geospatial modelling estimates the share of the population within walking distance of potential CEA sites that could be supplied with their daily intake of leafy greens, alongside associated yields, energy use, water use and potential land sparing. Across all scenarios, between 4% and over 100% of nearby populations could be served, demonstrating both the promise of hyper-local food provisioning and how sharply outcomes swing with siting and operational goals.

Arun Kumar, Sandhya Prajapati · · Global

Urban farming has emerged as a viable approach that encourages intensive farming techniques and urban wastewater to sustainably generate food. This approach optimizes available urban spaces like rooftops, vacant lots, and vertical structures to cultivate food within city boundaries. It lessens reliance on lengthy supply chains and promotes a clean, sustainable environment by minimizing resource consumption, including fresh water and pesticides.

Wang, Junrong · Digital Commons - RISD (Rhode Island School of Design) · Global

This project uses landscape architecture to reduce carbon emissions from restaurants by implementing compost gardens that shorten compost transportation routes. These gardens, placed on roofs and at ground-level, create new local food sources to replace distant shipments and provide materials for organic pesticides, reducing carbon-intensive VOC emissions. The compost gardens are integrated into existing parking lots and vacant lots, forming a community garden network.

Rodrigo Calderón, Diana Garcia-Cejudo, Rob Roggema · Land · Mexico (Querétaro)

This study analyzes the paradox of food swamps, food availability, and food's ecological footprint in Querétaro, Mexico, to promote the creation of community gardens. Findings corroborate a soaring number of unhealthy food stores, elevated carbon footprints related to food production, and a community request for urban agriculture, including the regeneration of community public areas. The research proposes designing and implementing community gardens in two marginalized neighborhoods (Tlacote and San Antonio–Bolaños) in Querétaro.

Pierric Calenge, Maie Gérardot · Métropolitiques · United States (Cleveland)

The work by Max Rousseau and Vincent Béal illuminates the ambiguities of a policy that organizes urban decline and racial segregation in Cleveland. This policy promotes urban degrowth and racial segregation, balancing algorithmic management and urban greening. The study focuses on the Rust Belt region, which experiences de-urbanization marked by the subprime crisis, racism, and segregation.

Dr.M.K. Ganesh · International Journal for Multidimensional Research Perspectives · Global

This mixed-methods study examined the farm-to-table movement in restaurant food production, identifying benefits like enhanced food freshness and local economic support. However, it also found significant challenges including higher costs, seasonal variability, and complex supply chain logistics. Consumer perceptions were generally positive, but the study emphasized the need for increased consumer education and policy support to overcome barriers.

Chunrong Ni, Katarzyna Dohn · International Journal of Information Systems and Supply Chain Management · Global

This article establishes a low-carbon urban agricultural product co-distribution model to reduce circulation levels and environmental impact. It analyzes fuel consumption and carbon emissions estimation models for delivery vehicles and develops a mathematical model for optimizing cold chain distribution routes from a low-carbon perspective. Using a logistics center as an example, the model's rationality and feasibility were verified by optimizing distribution routes with a genetic algorithm.

Dennis Guerra-Centeno, Paula Guerra-Burmester, Carlos Valdéz-Sandoval, Alfredo Gómez-Chacón, Sayra Pérez-Julián, Jackeline Marisol Noriega-Huertas, Ligia Vanessa Rios · Ciencia Latina Revista Científica Multidisciplinar · Global

This 10-week study evaluated the productivity of alfalfa (Medicago sativa) in two artisanal hydroponic towers, measuring survival, growth, biomass production, and light incidence effects. Survival was 97%. Final average heights were 40.6 cm in the upper stratum and 29.8 cm in the lower stratum, with significant differences from the second week (p < .001). Final average plant weight was 12.55 g in the upper stratum and 5.35 g in the lower, but no significant difference in average weights between strata was found (U = 212, p = 0.754). Total biomass production was 358 g, equivalent to 1.33 kg/m2.

Matthijs T. Wessels, Lisa‐Marie Hemerijckx · Development Southern Africa · Sub-Saharan Africa

More than 700 surveys with food vendors and consumers, combined with ethnographic research with farmers, quantified and mapped the contribution of urban and peri-urban producers to fresh leafy vegetable supply in the growing city of Dar es Salaam, Tanzania. Seventy percent of all amaranth consumed in the city was found to be produced within it, with an average farm-to-fork distance of 11 km, indicating a strongly localised foodshed for leafy vegetables. The results point to the ongoing significance of urban areas in meeting their own food demand and the need to explicitly integrate food provisioning into the planning of growing African cities.

Frank Seo, Darren Hudson · Journal of Agricultural and Applied Economics · United States

To identify attributes that influenced consumers' choice of locally grown food sources during and after the COVID-19 pandemic, this US study estimated willingness to pay (WTP) across sources. Respondents valued Freshness, Accessibility, Variety, and Risk Shift attributes, in that order. Community-supported agriculture (CSA) had the lowest WTP among the sources examined, and respondents weighted CSAs' general weaknesses more heavily than their advantages when choosing where to buy. However, increasing levels of community outreach positively affected the probability of choosing CSAs over other sources.

Food and Agriculture Organization of the United Nations (FAO) · FAO · Global

Using FAO's newly developed Urban Rural Catchment Areas (URCA) dataset, the report analyzes household survey data from 11 African countries. It finds reliance on purchased food is high even in rural areas 1-2 hours (56%) and over 2 hours (52%) from an urban centre, with own production covering only 33-37% of consumption value in low- and high-food-budget countries respectively. Processed food penetration extends even to remote rural areas, and the report concludes that affordability of healthy diets is a critical issue across the entire rural-urban continuum, not just in cities.

Ada Górna · Prace i Studia Geograficzne · Global

A study analyzed urban agriculture supply chains in Havana, Kigali, Bissau, and Singapore based on fieldwork conducted from 2018 to 2020. It found that while shortened supply chains are typical for urban agriculture, their benefits are not arbitrary and depend on local economic, social, and spatial conditions, as well as the supply chain's organization and structure. The positive effects of localized food production are not universal, indicating a need for further research into supply and value chain structures.

Beatriz Urbano, Marcia Barquero, Fernando González‐Andrés · Scientia Horticulturae · Global

This study used a Life Cycle Analysis (LCA) to compare the environmental impacts of eight scenarios for fresh tomato supply to urban citizens. Zero-miles production in heated greenhouses showed the highest environmental impact (GWP 0.33 kg CO2 eq/kg tomato), performing worse than unheated greenhouses with long-distance transport (GWP 0.21 kg CO2 eq). Conversely, open-field zero-miles production was the most environmentally favorable option (GWP 0.12 kg CO2 eq), and product travel distance was less important than transport efficiency. Urban Agriculture was not environmentally superior to zero-miles agriculture carried out in rural areas.

J. Dominique Gumirakiza, Autumn Milliner · Journal of Agricultural Science · United States

Using data from 172 consumers responding to a 2020 mail survey in the Southcentral Kentucky region, USA, a study applied Multinomial and Ordered Logit models to analyze farmers market attendance and likelihood of participating in a Community Supported Agriculture (CSA) program. Relative probabilities for 'never attend,' 'attend occasionally,' and 'attend frequently' were 55%, 29%, and 16% respectively, with male consumers, rural residents, primary shoppers, and those with a 2-year associate degree less likely to attend farmers markets, while more educated consumers and those satisfied with prior market experiences attended more frequently. Consumers interested in using an app to purchase fresh produce were more likely to attend farmers markets and join CSA programs, while rural residents were less likely to join a CSA program.

Annie-Pier Mercier, Gabrielle Rochefort, Julie Fortier, Geneviève J. Parent, Véronique Provencher, Simone Lemieux, Benoı̂t Lamarche · Current Developments in Nutrition · Canada

A short questionnaire measuring local food procurement behavior, the Locavore-Index Short Form (Locavore-I-SF), was developed and validated among 299 French-speaking adults (85% women) in the Quebec City metropolitan area, Canada. The 12-item, 12-point instrument covering short food supply chain use and geographic origin of carrot, tomato and lettuce showed high internal consistency (Cronbach's alpha 0.74), correlated strongly with the original Locavore-Index (r=0.84, P<0.0001) and with photo-verified food origin (r=0.50, P<0.0001), and was higher among gardeners than non-gardeners (mean difference 2.3±0.4 points, P<0.0001); its association with the Healthy Eating Food Index-2019 score was weak (B=0.05±0.02, P=0.02).

Kana Nakatsuka · Journal of Rural Problems · Japan (Higashi-Osaka City)

Higashi-Osaka City implemented the "Farm Mileage2 Campaign" to promote urban agriculture, collaborating with food business operators to jointly develop agricultural products. As a result, residential areas of consumers preferring ethical foods expanded based on the shipping destinations of food business operators. The movement also fostered events for food and agriculture education, promoting understanding of urban agriculture rather than just leisure. Many urban residents were found to desire agriculture near their homes.

Mark Paul · Econstor (Econstor) · United States

In-depth interviews with community supported agriculture (CSA) farmers in the Pioneer Valley of Massachusetts, United States, examined their livelihoods. CSA farmers earned more farm income than other US farms and other farms in the region, but their earnings remained far below the median national household income. Despite this income shortfall, CSA farming provided non-market social, ecological and economic benefits tied to feeding the community rather than producing for mass markets, which farmers described as a significant source of well-being.

Norbert Goldfield · · Israel

A chapter on an HATD-funded joint farming initiative between Israeli Jews and Bedouin in southern Israel, covering the geographic setting, the organizations involved, the initiative's activities, preliminary results and possible future directions. It cites prior US research on community-supported agriculture, including a randomized clinical trial reporting that CSA participation produced clinically meaningful improvements in diet quality, and describes White Hill Farm (WHF) as one of only a handful of efforts concretely promoting engagement between Israeli Bedouin and Israeli Jews amid ongoing tension between the two groups.

Christine Lux, Brianna Routh, Lacy Stephens · Journal of Human Sciences and Extension · United States

This exploratory study surveyed 21 parents from a campus-based preschool in the northwest United States during the 2017-2018 school year to understand the impact of the "Harvest of the Month" program on children's nutrition behavior at home. Findings indicated that a variety of program foods were served and consumed at home, but parents prioritized knowing food origins over serving local foods. Parents' knowledge of farm to ECE, reported farmer's market purchases, and CSA participation were limited, suggesting a need for targeted parent education.