Research & reports

Hao Yang, Runyan Zou, Yueming Hu, Lu Wang, Yingkai Xie, Zhengxi Tan, Zhiqiang Zhu, A‐Xing Zhu, Jianzhou Gong, Xiaoyun Mao · Land Use Policy · China

This study introduced an "element coupling-function synergy" analytical framework and constructed a causal Bayesian belief network to identify trade-offs and synergies among multiple functions of cultivated land resources in Guangdong, China. The findings revealed trade-offs between food cleanliness and food production/social security. Synergistic relationships were found among food production, social security, and ecological regulation, as well as among ecological regulation, habitat maintenance, and landscape culture. The study divided the area into eight functional zones and formulated multi-objective management plans.

Sudha Panda, Chandana Parida, Anisa Azharunnisa, Rakesh Ranjan Thakur · Discover Sustainability · India (Bhubaneswar)

This paper uses remote sensing data from 2011 to 2023 to examine agricultural land loss in Bhubaneswar, India, a smaller city experiencing significant agricultural decline. It compares the decrease in agricultural land with the increase in built-up areas. The study highlights that agricultural land conversion negatively impacts food security and proposes a nature-based solution to achieve urban food self-sufficiency.

Alexander Follmann, Dorothea Hohengarten · transcript Verlag eBooks · Germany (Cologne)

This publication, titled "Ernährungsrat, Essbare Stadt, Gemeinschaftsgärten: Innere und äußere Logiken und Widersprüche der sozialökologischen Transformation durch Urban Gardening am Beispiel Köln," discusses the internal and external logics and contradictions of socio-ecological transformation through urban gardening, using Cologne as an example. The abstract states that this work was published in "Unterwegs in die Stadt der Zukunft" on page 241.

Exzolvildres Queiroz Neto, Gilson Brandão de Oliveira Junior, Marcelha Silva de Andrade, Suncar Dabo, Geisiane Michelle Zanquetta de Pintor · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

This article presents reflections on the practice of Urban and Peri-urban Agriculture (AUP) and its impact on land use and occupation in Foz do Iguaçu, Brazil. The research raised several questions concerning rural-urban dynamics, the specificities of urban family farmers, and the complexity of land use in the municipality. Diagnostic results from a semi-structured research guide will be used as an empirical basis for further reflection, and the abstract does not state specific research findings or critical findings regarding governance.

Roberta Bulgari, Erdona Demiraj, Calogero Schillaci, Ahlem Tlili, Yushu Xia · Urban Agriculture & Regional Food Systems · Global

This special issue examines urban and peri-urban soil and plant management, highlighting that soil-related factors in urban agricultural systems pose unique challenges. Issues such as soil fertility, soil biodiversity, and soil contamination require further investigation to enhance urban agriculture's contribution to livability. The issue collects studies supporting sustainable soil management and crop diversification, and explores remote sensing and deep learning for soil health monitoring and plant disease detection related to contamination.

Mohammed Elyaagoubi · African J of Economic and Sustainable Development · Morocco

This study investigates the decline of agricultural land in Guersif City, Morocco, due to rapid urbanization. Sociological surveys and technical data from 1954 and 2021 were used to identify and quantify the rate of agricultural land loss. The preservation of urban agriculture in Guersif faces a real challenge from other, more profitable activities.

Catherine Oliver · Transactions of the Institute of British Geographers · United Kingdom (London)

This paper examines urban chicken-keeping in London, where urban spaces are transformed to accommodate chickens. It argues that the human-imposed design of urban barnyards is often impractical for chickens, leading to lawns being torn up, plants demolished, and vegetable patches consumed. Additionally, chickens are vulnerable to local foxes, highlighting that chickens' behaviors and territoriality often overflow their assigned space, challenging human design intentions.

Aminkeng Lucienne Fuanyi, Tata Emmanuel Sunjo, Balgah Sounders · Environmental Management and Sustainable Development · Cameroon

This study analyzed the implications of spatio-temporal land use/land cover (LULC) dynamics on wetland ecosystem services in the coastal areas of Limbe I and III Municipality and Douala IV Municipality, Cameroon, from 1986 to 2022, using GIS techniques. Over 36 years, wetlands retreated by -0.2km² (-0.96%) in Limbe I & III and -0.48km² (-0.14%) in Douala IV, while built-up areas increased by 0.75km² (0.36%) and 1.63km² (0.45%) respectively. These LULC changes, based on wetland regulating services, exposed neighborhoods in Limbe I & III to flood vulnerability and identified two categories of vulnerable neighborhoods in Douala IV.

Anna M. Roodhof · Journal of Agriculture Food Systems and Community Development · Netherlands

To map and analyze food forestry (FF) in the Netherlands, a survey of 109 participants and interviews with five experts were conducted, identifying 231 food forests established since 2017. The survey data indicates that while FF initiatives are diverse in goals, few focus on profitability. Practitioners are largely homogeneous, consisting of university-educated individuals aged 40 to 60.

Yihang Hu, Junbiao Zhang, Yangmei Zeng, Jie Li · Land Degradation and Development · China

A study in Zhejiang Province, China, examined the impact of climate factors on agricultural production efficiency using a pooled OLS model. While precipitation production potential showed a significantly positive impact, the effects of temperature, evapotranspiration, and insolation were not significant or exhibited poor stability. Furthermore, the benefits of precipitation potential varied, with only a few cities experiencing significant improvements.

Jean de Dieu Minengu, Aiko Ikonso Mwengi, Romain Kawanga, Simon Mwengi, Oscar Mangunda Yama · Revue Africaine d’Environnement et d’Agriculture · Africa

Market gardening in Kinshasa's urban and peri-urban areas faces multiple constraints, including land insecurity, low natural soil fertility, the incidence of diseases and pests, weak technical support, climate hazards, poor input supply, and problematic marketing systems. These constraints limit yields in production sites and hinder the development of market gardening activities.

Marthe L. Derkzen, Maitreyi Koduganti, Sheetal Patil, Parama Roy · · India (Bengaluru)

Bengaluru has transitioned from a "Garden City" to a "Global Technology Hub," resulting in food production being pushed out and productive lands converted to residential and commercial uses. This urbanization has led to rising land values, sharpening inequalities, and recurrent water insecurity. In response, new forms of urban farming, such as kitchen gardens and community farms, have emerged to mitigate space constraints and meet local food aspirations. This chapter will use participatory mapping, interviews, film, and photography to explore how Bengaluru residents from diverse backgrounds perceive food as cultural connections, community feelings, and environmental resilience.

Jinrong Tong, Dongsheng Feng, Xia Wang, Min Wang, Mei-Lian Chen, Yanfen Chen, Yingqing Ma, Bo Mei, R. Chen, Mengfeng Gao, Siwen Shen, Hongkang Wang, Weiyi Zhang · Heliyon · China (Shanghai)

A study investigated pesticide residues and dietary intake risk in 7028 vegetable samples grown under modern urban agriculture in Shanghai from 2018 to 2021, analyzing 68 types of pesticides. Pesticide residues were detected in 29.21% of samples, with 0.47% exceeding China's national maximum residue limits (MRLs). The target hazard quotient (THQ) and hazard index (HI) for detected pesticides were all less than 1, suggesting there may be no obvious health hazard for residents.

Matthew L. Richardson, John Taylor, Megan J. Thompson, Anusuya Rangarajan, Mamatha Hanumappa, Neith G. Little · PLoS ONE · United States (Northeastern United States)

This online survey of 394 urban growers, primarily in the Northeastern United States, profiled growers and assessed urban agriculture's state, identifying needs and challenges. Most growers were white (non-Hispanic), under 45, well-educated but without agriculture degrees. Urban agriculture was dominated by small non-profits and home/community gardens. A critical finding is that urban growers face diverse barriers, with the most common being land availability and long-term access in urban areas, and many reported low revenue or operating at a net loss.

Mary Mattingly · Intellect eBooks · Global

This essay shares two research practices stemming from the author's seven-year engagement with extractive supply chains for specific objects. Swale is a floating food forest that uses the common law of the waterways as a loophole to do what was illegal on common land, highlighting governance challenges within existing systems.

Anubhav Pradhan · South Asia Research · India

This article analyzes the recalibration of justice for agrarian communities along the Yamuna in Delhi. Following a 2015 ban on edible crop farming by India's apex environmental court, the Delhi Development Authority has conducted multiple demolition drives for nearly a decade to evict farmers and clear land for redevelopment. The ongoing contentions involving farmers, planning agencies, and the judiciary in this region are symptomatic of the erosion of social justice in urbanizing India.

Alberto Matarán-Ruiz, David Fanfani, Josefa Sánchez Contreras, Miguel Ángel Escalona Aguilar · · Central America; Europe

This chapter examines bioregional food systems and territorialization processes in peri-urban agricultural areas, using three case studies from Central America and Europe. It notes that the historical co-evolutionary relationship between cities and surrounding farmlands weakened in modernity due to the global capitalist market, which reduced food to a commodity. The study highlights current problems while exploring how inherited relationships are being revived to adapt urban bioregions to climate emergency and resource scarcity.

Ion Martínez Lorea · Revista Española de Sociología · Spain (Pamplona)

This article uses Henri Lefebvre's concept of concrete utopia to analyze the practices of community urban gardens in Pamplona-Iruña, Spain. It interrogates their potential and limitations in responding to various situations of social vulnerability and rethinking the relationship between the rural and the urban.

Alexandra Zink, Paul J. CaraDonna, Kelly Larsen, Amy M. Iler · Ecosphere · United States (Chicago)

This study investigated how urbanization relates to pollination by growing 240 plants (squash and tomato) across six sites with varying urbanization levels in Chicago, Illinois. For tomatoes, the magnitude of pollen limitation increased with greater impervious surface, indicating more pronounced pollination deficits at highly urbanized sites. For squash, evidence of pollen limitation was found only at the most urban site, with a weak trend of pollen limitation of fruit set (but not seed set) increasing with impervious surface.

Jessica Ann Diehl · · Global

This chapter investigates urban agriculture in Singapore through a political ecology lens, examining food security from the perspective of traditional commercial farmers. Growing urban food demand and risks inherent in reliance on the global food system have spurred city governments to implement diversified strategies for integrating urban agriculture at different scales; Singapore, a high-earning city-state that imports 90% of its food, has set a target of raising domestic food production to 30% under its Singapore Green Plan 2030 "30 by 30" Grow Local target. The chapter questions whether this level of food independence is achievable if food production shifts away from traditional farming toward high-tech operations such as rooftop or vertical farms. Semi-structured qualitative interviews covered four topics: general farm practices, social networks, benefits and barriers, and livelihood alternatives. Findings were examined in the context of a rising generation of high-tech entrepreneurial farmers facing the challenge of meeting consumer demand against land and labor scarcity. The in-depth case study demonstrates that technology is only one driver, among many, of the sustainability of the local food system in Singapore, and traditional commercial farmers face pressure on their livelihoods as policy shifts toward high-tech production.

Jennifer C. Franco, Saturnino M. Borras · Oxford University Press eBooks · Global

This chapter examines the dominant convention in critical agrarian studies and agrarian movements — that land struggles are best captured by an agrarian-reform framework of expropriating land from large private monopolies for redistribution to landless and near-landless working classes. It argues that while this type of struggle remains important, it does not fully capture the range of land struggles of working people across rural and urban, agricultural and nonagricultural spaces. Over recent decades the working classes have fragmented, as the numbers of people combining agricultural/nonagricultural and rural/urban livelihoods have vastly expanded, decentering working people's land struggles from the classical treatment tied to agriculture and capitalism. Land struggles today are dispersed and multisited, with political leadership and power that are polycentric rather than unified, and span multiple scales.

· The Dirt · United States

Published July 31, 2024 by local outlet The Dirt, this article reports that Spork Food Hub announced the immediate closure of its farmstand at The Cannery agrihood in Davis, California. In a Facebook post, the operator said that after two years of operation it had been unable to grow its customer base enough to make the stand profitable, and would instead focus its community outreach on other farm and food-hub events.

· LCR Diario Digital · Argentina

A regional Argentine newspaper report on the national Ministry of Human Capital's March 2024 discontinuation of ProHuerta, the national program providing free seed kits for household gardens. In the Villa Regina area of Río Negro province, the local Comisión de Fomento of Valle Azul stepped in to purchase and freely distribute 100 seed kits for the spring-summer season, while INTA (the national agricultural technology institute), though no longer funded to buy seeds, continues to offer free technical advice on soil improvement and pest control.

Setyardi Pratika Mulya, Heru Purboyo Hidayat Putro, Delik Hudalah · Geography and sustainability · Global

This 2023 global systematic literature review examined peri-urban agriculture (PUA) as an ecosystem service, focusing on urbanization pressures and governance. The review found that PUA is crucial for urban areas in terms of food supply, ecology, biodiversity preservation, disaster mitigation, and recreation. However, massive urban expansion is a primary cause of PUA loss, and sociocultural biases have led to institutional constraints on peri-urban management within existing political and regulatory frameworks.

Tinashe P. Kanosvamhira · Urban Forum · South Africa

This narrative literature review analyzed 62 peer-reviewed articles on urban agriculture in South Africa from 1993 to 2022. The findings indicate several knowledge gaps, including an under-representation of secondary cities and a general productivist focus in most studies, which limit understanding of urban agriculture for sustainable cities.