17 pages, The purpose of the study was to design a device for the dissolution of fertilizers for agricultural use in an automatic and environmentally sustainable way to facilitate the work of farmers. To achieve this goal, an outdated blade design was used, which generates turbulent and laminar flows thanks to the angle of inclination of its blades. In tests, the combination of these two flows gave a better result compared to laminar and turbulent flows separately. The best results were achieved by varying the spin and speed, the time between spins, and the rest time. The time it would take to dissolve the mixture was drastically reduced if it were conducted in the traditional way (manually) or compared with commercial mixers. In conclusion, the technique used for the dissolution of agricultural minerals is more effective and reduces time, energy, and effort. This was able to reduce the time necessary to dissolve the fertilizer by 93 percent compared to doing it manually and by 66 percent compared to using commercial mixers, in a solution of 100 L of water per 100 kg of ammonium sulfate.
17pgs, There is a lack of data on resources used and food produced at urban farms. This hampers attempts to quantify the environmental impacts of urban agriculture or craft policies for sustainable food production in cities. To address this gap, we used a citizen science approach to collect data from 72 urban agriculture sites, representing three types of spaces (urban farms, collective gardens, individual gardens), in five countries (France, Germany, Poland, United Kingdom, and United States). We answered three key questions about urban agriculture with this unprecedented dataset: (1) What are its land, water, nutrient, and energy demands? (2) How productive is it relative to conventional agriculture and across types of farms? and (3) What are its contributions to local biodiversity? We found that participant farms used dozens of inputs, most of which were organic (e.g., manure for fertilizers). Farms required on average 71.6 L of irrigation water, 5.5 L of compost, and 0.53 m2 of land per kilogram of harvested food. Irrigation was lower in individual gardens and higher in sites using drip irrigation. While extremely variable, yields at well-managed urban farms can exceed those of conventional counterparts. Although farm type did not predict yield, our cluster analysis demonstrated that individually managed leisure gardens had lower yields than other farms and gardens. Farms in our sample contributed significantly to local biodiversity, with an average of 20 different crops per farm not including ornamental plants. Aside from clarifying important trends in resource use at urban farms using a robust and open dataset, this study also raises numerous questions about how crop selection and growing practices influence the environmental impacts of growing food in cities. We conclude with a research agenda to tackle these and other pressing questions on resource use at urban farms.
Vigne Bennedetti, Luiza (author), Antônio de Almeida Sinisgalli, Paulo (author), Lamano Ferreira, Maurício (author), and Lemes de Oliveira, Fabiano (author)
Format:
Journal article
Publication Date:
2023-01-24
Published:
Netherlands: MDPI
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 206 Document Number: D12839
14pgs, Urban agriculture (UA) can be used as an action to promote sustainability in cities and inform public health policies for urban populations. Despite this growing recognition, its implementation still presents challenges in countries in the Global North and Global South. Background: In this context, this systematic review aims to identify the development of frameworks for the implementation of UA as a sustainable action and its main opportunities and shortcomings in meeting urban socio-environmental demands. Methods: In this review, using the PRISMA protocol, we evaluated 26 studies on the interplay between UA and sustainability surveyed on the Web of Science to provide an overview of the state of the art. Conclusions: In summary, it was possible to identify many key challenges in UA adoption, which regard air and soil contamination, availability of green areas, layout of urban infrastructure, food distribution, among others. Due to numerous socio-economic and environmental contextual factors in cities, especially when comparing realities of the Global North and Global South, there is a need to develop a model that can be adaptable to these different contexts. Thus, it is recognized that the concept of sustainability does not present a universal understanding and that in its search it could be argued that one of the most important gaps is still to address social issues in relation to environmental ones.
21 pages, Climate change and variability have adversely affected communities’ pastoral livelihoods in Kenya. The study aimed to investigate sustaining pastoral livelihoods in a changing climate in Loima Sub-County, Turkana County, Kenya. A total of 59 pastoralists were interviewed using a questionnaire. The data was analysed using the Statistical Package for Social Sciences (SPSS) software Version 22. SPSS employed descriptive statistical techniques like frequencies, percentages, cross-tabulations and proportions, means, and standard deviation. Pie charts, graphs, figures, and tables were used to present the data analysis output. Climate has been observed to vary continuously by pastoralists. Climate hazards mostly reported were livestock diseases and the frequency of droughts. The findings also indicated that livestock keepers preferred to graze their livestock on mountains/hills. Pasture and water availability and security determine the pattern of livestock movement. Pastoralists adopted various strategies to cope with climatic changes. Some of these strategies included diverse utilisation of livestock products, controlled grazing, herd diversification, and labour distribution among household members. In conclusion, climatic change and variability effects on the livelihoods of the pastoralists are evident. However, they have diversified ways of adapting and coping with these catastrophes to sustain themselves. To avert the effects of climate change, Turkana agriculture extension officers should focus on value addition to livestock products, provision of livestock insurance schemes, veterinary services, and livestock disease surveillance. Furthermore, agriculture extension needs to develop and enforce livestock policies and develop appropriate contingency plans. Among the policies recommended are- the management of grazing areas, regulations on migratory routes, and rules governing the use of water sources.
15 pages, A significant emphasis on scaling up food security efforts is needed to achieve Sustainable Development Goal 2 (Zero Hunger) by 2030. Scaling up sustainable intensification efforts for Cambodian smallholder farmers is key since they face greater exposure to the uncertainties of climate change, globalizing markets, and rural-to-urban migration. One way to increase the effectiveness of efforts and the scaling up of sustainable intensification technologies is through improving access to information about production and marketing technologies. This study aimed to identify sources of information about sustainable technologies available to smallholders and barriers that may be preventing adoption. Information was gathered from a household survey to document the sources of agricultural information for smallholders in Northwest Cambodia. This research suggests Cambodian smallholders are receiving agricultural extension services, however, the overall quality and effectiveness of these messages are unknown, since NGOs with competing foci are the primary provider of extension information. Smallholders face significant barriers that prevent the adoption of sustainable technologies and participation in markets, such as low price for goods, poor product quality, lack of time, and concerns for safety. Future endeavors to strengthen the price of goods and alleviate market-related challenges would likely result in increased smallholder income and food availability.
20 pages., This research paper explores the role of environmental labelling in shaping the purchasing and consumption behaviours of Generation Z. The study aims to provide insights into the comprehension, perception, and attitude of this generation towards environmental labelling and to investigate how these factors impact their purchasing decisions. The results of this study provide valuable insights into the role of environmental labelling in shaping the behaviours of young consumers and suggest that it still matters to this generation. The study also highlights the importance of trust in environmental labelling for influencing purchasing decisions. Our research paper provides new insights into the role of environmental labelling in shaping the behaviours of Generation Z, which is a critical demographic group for sustainable consumption. We found that this generation is highly aware of environmental issues and is motivated to make eco-friendly purchasing decisions. However, our study also highlights that the lack of trust in environmental labelling can be a significant barrier to sustainable consumption. This study contributes to the literature on environmental labelling and consumer behaviour among Generation Z.
13 pages, Green political theorists often highlight local food systems as an exemplar of ecological citizenship. Nevertheless, the topic has received scant systematic and critical treatment within green political theory. Although local food initiatives generally tend to be environmentally friendly, not all such initiatives lead to better environmental outcomes, nor can they be essentially characterized as citizenship practices that foster social justice. This article argues that a situated analysis is necessary to understand how a particular local food initiative promotes ecological citizenship. Through a qualitative study of community supported agriculture (CSA) participants in the greater Edmonton region of Canada, this article analyzes the civic virtues nurtured by this community and interrogates the extent to which their everyday practices resemble ecological citizenship. It concludes that discursive and structural limitations prevent the Edmonton CSA community from achieving meaningful diversity and addressing social justice concerns within its realm.
