Research & reports

Noiry Pérez Pompa, Santa Laura Leyva Rodríguez · Sinergia Académica · Cuba

A diagnosis of farms infested by Dichrostachys cinerea (marabú) in urban and suburban agriculture was conducted at Los Téllez farm in Becerra, Las Tunas municipality, Cuba. Soil quality indicators for reddish-brown Fersialitic soils over granitoids were evaluated across four land-use systems: two infested by D. cinerea and two agricultural systems cultivated for 10 years after marabú deforestation. Results showed that D. cinerea systems exhibited the highest soil quality index, based on organic matter, bulk density, and earthworm biomass. Conversely, cultivated systems achieved the lowest accumulation of organic carbon, oligochaete density and biomass, and total porosity.

É. Nagy · Journal of Applied Technical and Educational Sciences · Hungary

A test was administered to 800 Hungarian science teachers to gather their opinions on their habits of going out into nature while teaching. This study aims to summarize the results of this test, which also extends to species diversity matters such as examining school gardens or nearby trees.

Angela Oyilieze Akanwa, H. C. Mba, E. B. Ogbuene, M. U. Nwachukwu, Charles C. Anukwonke · Apple Academic Press eBooks · Global

This chapter explores the potential of intensive agroforestry and environmental greening as measures to minimize climate change. It details agroforestry components such as urban agriculture, all-season farming, and forest conservation, alongside legislative actions against tree felling. Environmental greening measures include land surface greening, landscaping, gardening, and horticulture, with legislative efforts to minimize land exposure. These practices are presented as efficient ways to reduce greenhouse gas effects on the ozone layer and balance the earth's heat budget.

Effrosini Melissourgou, Nefeli Kassari, Irene Manoukaraki, George Melissourgos, Amane Awir, Irene Vergaki, Yiannis Dramitinos, Ariadne Delilai, Laith Yazi, Nektarios Tsagliotis · Zenodo (CERN European Organization for Nuclear Research) · Global

This report shares 12 years of knowledge and practice regarding companion planting in a school garden, where seed plants are prepared in a greenhouse and transplanted to raised beds. Through testing many combinations, it was found that some combinations help companion plants flourish, leading to improved vegetable crops and quality products for the community.

Andreas Michalsen · Zeitschrift für Komplementärmedizin · Global

Urban green spaces near residential areas are very important for the prevention of psychological, pulmonary, and cardiovascular diseases. Evidence suggests benefits from wild meadows, biodiverse urban gardening, and the presence of trees and naturally mixed forests. For individual therapy, targeted time in nature, especially in forests or biodiverse green spaces near water, is considered particularly effective.

Paul Sherfey · Budkavlen · Global

This study explores human-animal relationships, particularly with insects, in collective gardens through observation and digital research. It demonstrates that in collective gardens, cultivating community is as important as cultivating organic produce, and this community includes not only humans but also animal species like insects. The article analyzes why gardeners show interest in building hotels and cafes, sowing meadows, and arranging festivals for insects, especially bees, and contrasts discourses about bees with the lack of similar discourse about wasps, considering how different cultural heritages affect the value placed on species.

Theresa W. Ong, Gordon Fitch · · Global

This chapter provides an overview of natural science research methods for new researchers in urban agriculture. It discusses applying classic ecological theory to urban agriculture's unique conditions, identifies open questions, and outlines methodological advancements and pressing issues for future urban agroecological research.

Zornitsa Stoyanova · Economic Alternatives · Bulgaria

This paper aims to determine the possibilities of urban agriculture for improving life quality in Bulgaria, based on an assessment of its ecological impact. It analyzes respondents' opinions on the environmental benefits, customer profiles, product types, and production methods of urban agriculture. Conclusions relate to urban agriculture's potential for food security, resource optimization, green practices, and local employment.

Stepha McMullin, Barbara Stadlmayr, Erick Ngethe, Brendah Wekesa, Ken Njogu, Agnes Gachuiri, Ben Mbaya, Agnes Katiwa, Ramni Jamnadass · · Global

This chapter discusses the role of neglected indigenous fruit trees in providing vital minerals and micronutrients to children and communities, and in addressing seasonality and hunger periods. It highlights their diversity, food composition, and contribution to dietary needs, as well as a 'portfolio approach' for addressing nutritional gaps. School gardens are presented as an entry point for integrating and promoting these trees for nutrition education and community engagement.

Leonie K. Fischer, Jonah L. Landor-Yamagata, Ingo Kowarik · · Global

This paper illustrates the benefits of urban foraging, the practice of collecting wild-growing edible plants in urban green spaces worldwide. It describes how ecological and cultural knowledge intertwine in this practice and elucidates approaches used in urban foraging studies globally, including an example from Berlin, Germany. The paper also highlights challenges and opportunities for urban greenspace planning and management related to foraging.

Katherine C. R. Baldock · Current Opinion in Insect Science · Global

Urban expansion is a major threat to biodiversity, yet some pollinator groups, particularly bees, can thrive in urban areas. Recent studies indicate that local floral resources and the amount of impervious cover influence pollinator abundance, richness, and community composition. Urban intensification, chemicals, climate change, and increased honey bee colony densities all negatively affect urban pollinators.

Catalina Cruz-Piedrahita, Caroline Howe, Audrey de Nazelle · Global Transitions · Global

This scoping review analyzed 138 papers to develop a conceptual framework on the impacts of urban horticulture (UH) on public health in the Global North. While UH is proposed as a tool for health improvement, the review notes a lack of systematic information on its benefits, barriers, costs, and risks in these regions. The framework visualizes relationships between UH and public health, providing evidence for both positive and negative connections regarding mental health, physical activity, diet, and socialization.

F. Feldmann, Ute Vogler · Journal of Plant Diseases and Protection · Global

Ten key challenges for plant protection in cities were identified, each belonging to a specific field of action of Integrated Pest Management (IPM) in urban horticulture, according to Directive 2009/128/EC. These challenges include appropriate plant selection, microbiome engineering, nutrient recycling, smart digital solutions, diversification of vegetation, avoidance of pesticide side effects on beneficials, biorational efficacy assessment, effective pest diagnosis, efficient outbreak control, and holistic approaches.

Cynthia Ellis Topsey, Anabel Ford, Sherman Horn · Heritage · Global

This narrative describes an education outreach project in archaeology that incorporates local collaboration, focusing on ancient Maya heritage and the Maya forest garden. The project is centered on the El Pilar Archaeological Reserve for Maya Flora and Fauna, with activities at the Cayo Welcome Center, Chak Ha Col forest garden, and Känan K’aax School Garden. It highlights that community partnerships require acknowledging tangible heritage, formal information outlets, education links, and cultural traditions.

Peter Loxley · · Global

This chapter discusses "adaptation" as a scientific concept that helps children understand the diversity of wildlife they encounter in school gardens, local parks, and other outdoor learning areas. It also helps children understand why the destruction of green spaces can have devastating consequences for wildlife. The chapter includes three topics designed to guide teachers in helping children grasp the concept of adaptation.

João Flávio Bomfim Gomes, Renata da Silva Brant Gomes, Alex Oliveira de Souza · Horticultura Brasileira · Global

A review-style introduction on the multifunctionality of urban horticulture. It cites United Nations (2015) projections that 66.36% of the world population will be urban by 2050, up from 53.60% in 2014, and an FAO 2015 report estimating about 795 million people worldwide facing food insecurity. It states that FAO (2015) puts global urban agriculture practice at 800 million people, and frames the practice as multifunctional - supplying food, supporting biodiversity, improving land and water use, and raising income and quality of life for urban farmers - without presenting original empirical data.

Louis Amprako, Kathrin Stenchly, Martin Wiehle, George Nyarko, Andreas Buerkert · Insects · Ghana

In 36 fields around Tamale in Ghana's Northern Region, researchers used 72-hour pitfall and pan trap sampling to examine how different irrigation water sources shaped arthropod communities in urban and peri-urban agricultural systems. Among 14,226 specimens spanning 13 orders, 103 families, 264 genera, and 329 taxa, analyzed with non-metric multidimensional scaling and redundancy analysis, arthropods grouped by irrigation source, with dipterans -- notably the disease-vector eye gnat Hippelates pusio -- dominant under wastewater irrigation, three alien ant species indicating community shifts from invasive species, and seven ant species forming mutualistic relationships with aphids flagging a future risk of aphid pest outbreaks.

Marcela Patricia Galindo Toloza, Brandon Steven García Rodríguez · · Colombia (Bogotá)

This project proposal addresses the San Germán neighborhood in Bogotá, Colombia — located between the Usme and San Cristóbal localities on the upper slopes of the Entre Nubes ecological district park in the city's southeast, an area designated as protected land since 2000 under the city's land-use plan (POT). The Integral Improvement Plan (PMI) aims to provide an architectural, urban, and environmental solution to the neighborhood's problems by structuring an alternative for recovering the existing urban fabric in relation to the informal settlement that developed there over time, through rehabilitation and landscape regeneration. The PMI is designed to minimize the physical, environmental, and legal impacts caused by informal occupation, which has degraded residents' quality of life and disarticulated the neighborhood's urban structure from the wider city. It implements an "Ecobarrio" (eco-neighborhood) strategy incorporating design for different modes of mobility, prioritizing bike paths and pedestrian trails, applying integral-improvement treatment to existing construction where possible, recovering disused areas, and designating a zone for urban agriculture — elements intended to work together to regenerate the sustainability and livability of the San Germán community.

Francesca Grazioli, Muhabbat Turdieva, Chris J. Kettle · · Global

A book chapter (2020) discusses how school gardens can engage children in documenting the diversity of socioeconomically important tree species around their school and community, and highlights the role schools can play in ex situ conservation of tree genetic resources through school arboreta, seed orchards, and nurseries. It presents case studies and a proposed framework for incorporating this into school curricula, without reporting quantitative outcomes.

Alessandro Filazzola, Namrata Shrestha, J. Scott MacIvor · Journal of Applied Ecology · Global

A meta-analysis of 33 relevant studies, selected from 1,883 published manuscripts, investigated the effects of green infrastructure (GI) on urban biodiversity. The analysis found that GI significantly improves biodiversity compared to conventional infrastructure and, in some cases, shows comparable biodiversity measures to natural counterparts. However, many studies were excluded due to neglecting conventional experimental design frameworks, such as controls, replication, or adequate sampling effort.

Jha Ritesh Kumar, Bhattarai Natasha, KC Suraj, Shrestha Arjun Kumar, Kadariya Manahar · Malaysian Journal of Sustainable Agricultural · Nepal

This research inspected existing practices and obstacles in rooftop farming in Nagdhungha and Birauta, Nepal. Two practitioners were interviewed and 60 non-practitioners were surveyed. Results show that rooftop farming can benefit the environment by reducing atmospheric carbon and assist urban areas by reducing stormwater management costs, with a high willingness to practice rooftop farming among urban dwellers.

Alessio Russo, Giuseppe T. Cirella · Humanities and Social Sciences Communications · Global

This comment examines "edible urbanism 5.0," noting that urban and peri-urban agriculture can have negative effects on city ecosystems, which urbanists and planners have largely overlooked. It highlights the need for a concept that considers trade-offs between ecosystem services and disservices, especially given current unsustainable industrial intensive farming. Edible urbanism aims to integrate food security, resilience, and social inclusion through edible green infrastructure and modern food production.

Youcan Feng · IntechOpen eBooks · Global

This chapter summarizes current research progress and challenges regarding the benefit, measurement, and simulation of evapotranspiration (ET) from green infrastructure (GI). ET is crucial for GI's hydrologic performance and related benefits, but classic ET equations struggle to represent variations due to urban spatial heterogeneity and GI's multi-layer designs. The underperformance of existing ET models is partly attributed to a lack of high-quality field observations for various GI types in urban settings.

Mia Hilmiyati, Anna Fitri Hindriana, Sri Redjeki · Edubiologica. · Global

This study investigated the impact of Contextual Teaching Learning (CTL) combined with school environment media on science literacy and cognitive achievement among X grade biology students. Using a pre-test-post-test control group design with purposive sampling, the experimental class (X MIPA-2) showed a high gain in science literacy (0.80) and a medium gain in cognitive achievement (0.68). The control class (X MIPA-1) had a medium science literacy gain (0.63) and a low cognitive achievement gain (0.29). Hypothesis testing confirmed significant differences between the groups, indicating that CTL with school environment media improved both science literacy and cognitive achievement.

Philip Pregill · · Global

This article discusses the increasing focus on local connections, such as alleys and local streets, within urban grids, driven by an emphasis on green spaces and stormwater management. Planning initiatives aim to enhance these areas to encourage social places, green spaces, and fine art, as alleys offer opportunities for off-avenue functions like parks and cafes. Independent entities and movements like guerrilla gardening are utilizing alleys for various artistic and urban interventions.