Research & reports

Marcos Daniel Schmidt de Aguiar, Cláudio Fioreze, Danielle Grassi · Cadernos de Agroecologia · Brazil (Porto Alegre)

This research, part of the EcoViamão project in the Metropolitan Region of Porto Alegre, Brazil, identified community gardens in the municipality of Canoas. Through data collection from public and private entities, bibliographic review, field visits, and extension action reports, an alternative form of urban agriculture was revealed, practiced collectively in socially vulnerable areas with a strong agroecological and food security bias. The study also analyzes possibilities for strengthening actions with the community and the mission of IFRS and the EcoViamão project for more sustainable regional development.

M. L. Dotaniya, V. D. Meena, S. Rajendiran, M. Vassanda Coumar, Asha Sahu, J. K. Saha, S. Kundu, Hiranmoy Das, A. K. Patra · Journal of the Indian Society of Soil Science · India (Bhopal)

A case study in peri-urban agricultural lands near Patranala, Bhopal, India, investigated the impact of over 50 years of untreated sewage water irrigation on soil properties. Findings showed higher concentrations of heavy metals in surface soils of sewage-irrigated fields, posing a major concern. Conversely, soil microbial population, enzymatic activities, and organic carbon content were also higher, indicating enhanced carbon sequestration.

J.H. Kwag, Eun‐Jeong Cho, Mi-Eun Jeong, Kwang-Yong Ju, Dae‐Young Jeon, Hui-Cheol Jeong · 한국토양비료학회지 · South Korea (Busan)

This study analyzed the chemical properties of soils from 29 urban vegetable gardens in the Busan area, South Korea. Urban area vegetable garden soils showed high content of organic matter and exchangeable cations, suggesting more fertilizer application in these areas. Average values for soil fertility items were pH 6.87, organic matter 43.4 g kg-1, available phosphate 845.3 mg kg-1, K+ 1.30 cmol kg-1, Ca2+ 17.27 cmol kg-1, Mg2+ 2.88 cmol kg-1, and electrical conductivity 2.66 dS m-1.

Ednaldo Michellon, Jaqueline da Silva Rosa, André Coelho Braga, Victor de Canini Cezar, Tiago Ribeiro da Costa, Wellington Fernandes Pereira · Cadernos de Agroecologia · Brazil (Maringá)

The REDIfeira project, part of the University Extension Program in Parana, Brazil, aims to boost the production and commercialization of family agriculture products through monitoring and technical assistance. This work presents the case of the FEPORg – Maringa Organic Products Fair and Region, which was established through community initiative with support from Maringa City Hall, the REDIfeira project, CerAUP, and PPCPO.

Nguyen Phuong Le, Nguyen Mau Dung · International journal of Rural Development Environment and Health Research · Global

A 2018 case study on the multifunctionality of peri-urban agriculture in Trau Quy Commune, Hanoi City, Vietnam.

Renan Borro Celestrino, Silvia Cristina Vieira · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Global

A descriptive and experimental study (qualitative-quantitative approach triangulated with a literature review) surveyed the cost of small-scale aquaponics implementation for family and peri-urban agriculture and documented the setup steps. In the practical experiment, 27 kilograms of fish were fed at 2% of their live weight, and the resulting waste nourished 144 seedlings of Crespa lettuce. The system was found to have low implementation costs and practical management, with organic nutrition of plants and no chemical use offering a sustainable alternative for healthier production.

C. Kavya, G. N. Nagaraja · Indian Journal of Economics and Development · India

This study classified farms around Bengaluru as having high or low urban influence (FHUI/FLUI) and applied a linear hedonic pricing model using simple random sampling of 120 farmers, 30 FHUI and 30 FLUI each from the Devanahalli Airport area and the Ramanagara Industrial Park area. Land market value was shaped by location, water availability and land-symbolizing patterns, fluctuating widely even within the study areas depending on the intensity of urban influence; land values in Devanahalli peri-urban and Bidadi industrial areas rose faster than inflation, and adding water availability and violet-zone designation to the model put FHUI land's market value at 111.66 lakh rupees.

Nolwazi Z. Khumalo, Sibanda, M., Khumalo, N., Sibanda, M. · AgEcon Search (University of Minnesota, USA) · South Africa

A survey of 208 stratified-random-sampled households (109 farming, 99 non-farming) in Tongaat, eThekwini Municipality, South Africa. Using the Household Dietary Diversity Score (HDDS), 54% of farming households consumed more than six food groups versus 40% of non-farming households. Using the Household Food Insecurity Access Scale (HFIAS), about 72% of farming households reported rarely or never worrying about food shortages, versus about 61% of non-farming households. Farming households showed better food access and dietary diversity outcomes than non-farming households.

FX Andy Sutrisno, Bakti Setiawan · Jurnal Perencanaan Pembangunan The Indonesian Journal of Development Planning · Indonesia

This case study of Surakarta, Indonesia's sustainable agricultural land protection policy -- focusing on conservation within the urban environment -- used field observations, stakeholder interviews, and secondary data to analyze the local government's policy and how urban farmers and landowners perceive it. It found that the policy is not well understood by the farmers and landowners directly affected, that the local government itself views urban agricultural land mainly from an economic standpoint and is less supportive of conservation, and that farmers and landowners, while believing the policy is essential, reject it because designation requires relinquishing some land rights and the incentives offered are not economically sufficient to compensate them.

Andrea Colantoni, Ilaria Zambon, Maria Gras, Enrico Maria Mosconi, Alessandra Stefanoni, Luca Salvati · Sustainability · Europe

This study uses multivariate analysis to identify the socioeconomic transformations shaping cropland distribution in the Athens metropolitan region, Greece, from 1960 to 2010. The share of cropland in total municipal area increased moderately, with a non-linear relationship to distance from downtown Athens: the highest cropland rates occurred 20-30 km from the inner city. Decade-by-decade multivariate regressions using 11 predictors per municipality found distance from downtown, soil and climate quality, population growth rate, and competing land use to be the factors most associated with cropland change. Competing land use drove cropland decline during the first urbanization phase (1960-1980), while population growth became positively associated with cropland in a later phase (1990-2010); per-capita urban land was negatively correlated with cropland in 1960 and 1970 but positively in 2010, suggesting a shift from a monocentric toward a more dispersed metropolitan structure.

Kra Kouakou Valentin · European Scientific Journal ESJ · Africa

A study of Bouaké, Côte d'Ivoire, analyzes new land-use dynamics around intra-urban shallow lowlands (bas-fonds) and their effects on market gardening. It finds that rising stakes over these lowlands have drawn in new actors, reducing cultivated areas and making market gardening more unstable and casualized. The operating rules for the floodplain plots previously allocated to gardeners have been redefined, and public servitude land and unbuilt areas are increasingly subject to illegal land transactions and unauthorized construction — indicating a breakdown in land governance and the neglect of urban agriculture within public policy and city management in Côte d'Ivoire.

David Ceaser · Agritecture · United States

In this December 7, 2018 article for Agritecture, horticultural consultant David Ceaser reports on the challenges facing agrihood development, using The Cannery in Davis, California (500+ homes, 150 acres, with a 7.4-acre organic farm) as a case study. He notes that residents held unrealistic expectations about how the farm would be run and their role in it, and that poorer-than-expected soil quality required amending with organic matter, delaying farm development. Farm Director Sri Sethuratnam described the aging farmer population and food-production challenges as "a national security issue."

Generalitat Valenciana · Boletín Oficial del Estado (BOE) · Spain

A law enacted by the Generalitat Valenciana on 6 March 2018 to protect the Huerta de València, published in the official state gazette (BOE) on 20 April 2018 and in effect from 13 March 2018. It consists of 47 articles across 8 chapters, aiming to preserve, restore and revitalize the huerta as a space with agricultural, environmental, landscape, historical and cultural value, while promoting economically viable farming in the metropolitan area of Valencia.

Roger Attwater, Chris Derry · Water · Australia

This paper presents a case study in Western Sydney, Australia, examining the role of water recycling for agricultural use within the peri-urban water cycle. It identifies and discusses aspects that enhance resilience, such as water resource security, avoidance of wastewater discharges, enhanced landscape ecology, and provision of ecosystem services. The study also considers environmental risk management, local agricultural products, social values, livelihood opportunities, and the industrial ecology of recycled organics.

Pere Serra, David Saurı́, Luca Salvati · Landscape Research · Spain (Barcelona)

A quantitative approach was proposed to analyze peri-urban agriculture (PUA) dynamics in the Metropolitan Area of Barcelona, profiling farm types and related landscape structures. Results indicated that PUA is based on five typologies with varying territorial values, reflecting diverse economic relevance, socio-environmental weight, and landscape prominence. A conservation strategy is proposed to preserve the residual PUA landscape by promoting a polycentric functional network of farming with natural vegetation.

Andrew Butt, Elizabeth Taylor · Geographical Research · Australia (Victoria)

This paper analyzes planning appeals and media from 2011–2016 in Victoria, Australia, regarding intensive poultry developments, revealing tensions between planning processes and local politics. Planning for intensive farming assumes stability and agricultural primacy, but concerns about agricultural industrialization are live local issues in dynamic peri-urban areas. Code-based planning's certainty does not negate the ongoing, inconvenient politics of intensive peri-urban agriculture.

HENKE Roberto, VANNI Francesco · Zenodo (CERN European Organization for Nuclear Research) · Italy

This 2017 article analyzed the role of peri-urban agriculture in Italy through a comparative study of seven metropolitan areas, using micro-data from the sixth Italian agriculture census. It identified six typologies of market-oriented farms. The study found that a significant share of farms in Italian urban poles are passively absorbed by urban expansion, indicating a challenge to their economic viability. However, the most reactive farms are diversifying and supplying social and economic services.

Annalisa Lodigiani · · Europe

This research addresses the ineffective governance of peri-urban agricultural territory in Europe, noting that spatial planning lacks the tools to guide agricultural sector forces influencing landscape transformation. Public action, through agricultural and rural development policies, significantly transforms the environment and territory but does not directly target space. The study finds that the separation between spatial planning and rural development policy creates ineffectiveness and stalemates in governing peri-urban agricultural land, concluding that integration of these two fields is required.

Alhadj Markhous Nazal, Abdelsalam Tidjani, Yassine Doudoua, Abdourahamane Balla · · Chad (N'Djamena)

This study characterized urban and peri-urban market gardening in N'Djamena, Chad, through a focus group with 92 market gardeners on development constraints and individual surveys of 61 producers on techniques. Producers were mostly men (67.21%) with an average age of 35, operating on administrative reserves (34.43%) and private property (65.57%). While holdings were diversified, leafy greens dominated (47% of products), and many problems were identified as obstacles to the sector's development.

Muhammad Asif Khan Rai Muhammad Amir · International Journal of Biosciences (IJB) · Pakistan (Faisalabad)

To investigate heavy metal residue levels in cauliflower grown in the peri-urban area of Faisalabad district, Pakistan, 30 cauliflower samples were collected from 10 selected farmers. Analysis revealed variable heavy metal residue levels (nickel, lead, zinc, copper, arsenic, and mercury) in the samples, indicating that the cauliflower was contaminated with multiple heavy metals. This contamination is attributed to the use of untreated sewage water for cultivation, which is the single largest contributor to heavy metal accumulation in cauliflower.

Dan Luo, Haifeng Zheng, Ye Chen, Philippe Deleporte, Tianpeng Xie, Siobhán Staunton, G. Wang · Soil Use and Management · China (Fujian Province)

A large-scale survey across 515 sites and 24 crop species in Fujian Province, SE China, assessed nickel (Ni) accumulation in food crops and associated dietary health risks. Crop Ni content was influenced by both soil Ni (DTPA-extractible) and plant species, though PCA did not show strong correlations between soil-to-crop transfer factors and soil properties. The study concluded that dietary intake of foods with mean Ni content could lead to health risks, particularly for children, and that sandy soils rich in organic matter with high Ni content are unsuitable for growing rice and legumes.

Jim Leap, Kirstin Yogg Comerchero, Darryl Wong · eScholarship (California Digital Library) · United States (California)

This guide focuses on producing mixed blocks of 30- to 60-day, direct sown and transplanted crops for direct market sales on California's Central Coast. It aims to improve cropping system efficiencies and economic viability for small-scale farms. The guide emphasizes managing the mixed crop production block as a whole, rather than providing specific crop information.

Jennifer Wilhelm · University of New Hampshire Scholars Repository (University of New Hampshire at Manchester) · United States (New Hampshire)

This dissertation addresses agricultural extensification from several angles. Chapter 1's literature review showed an increase in research on urban and peri-urban agriculture (UPA) and ecosystem services, but highlighted a need for quantifying ecosystem services and functions to clarify ecological tradeoffs. Subsequent chapters focused on a mixed-methods study in New Hampshire, surveying approximately 600 residents (494 general population, 103 food system stakeholders) on their perception of forestland conversion to agriculture.

Hosham S. Yousif, El-Syed I. Gaber, Goma A. Bakeer, Abbas E. Rahma, Fathi G. EL-Ebabi · مجلة الدراسات الأفريقية · Sudan (Khartoum)

Sprinkler irrigation has been gaining popularity in Sudan since the mid-1990s, primarily adopted in urban and peri-urban farming in Khartoum state for fodder and vegetable production. The method is mainly used due to its high efficiency and flexibility in applying small depths of water. Water conservation, particularly for farmers using groundwater for irrigation, is another motive for its spread.

Paulos Lukas · Journals & Books Hosting (International Knowledge Sharing Platform) · Ethiopia

This study investigated the effects of urban expansion on the livelihood of 100 dislocated farming households in Wolaita Sodo, Southern Ethiopia, using household surveys, group discussions, and interviews. The findings indicate that the implemented expansion program was not participatory, marginalized the farming community, and excluded youth and women from compensation schemes. The dislocation program was not rehabilitative and negatively affected the livelihood of the dislocated farming community.