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1.
This paper provides a critical commentary on the conception of food miles followed by an empirical application of food miles to two contrasting food distribution systems based on carbon emissions accounting within these systems. The comparison is between the carbon emissions resultant from operating a large-scale vegetable box system and those from a supply system where the customer travels to a local farm shop. The study is based on fuel and energy use data collected from one of the UK’s largest suppliers of organic produce. The findings suggest that if a customer drives a round-trip distance of more than 6.7 km in order to purchase their organic vegetables, their carbon emissions are likely to be greater than the emissions from the system of cold storage, packing, transport to a regional hub and final transport to customer’s doorstep used by large-scale vegetable box suppliers. Consequently some of the ideas behind localism in the food sector may need to be revisited.  相似文献   

2.
This study uses life cycle assessment methodology to quantify the energy use, greenhouse gas (GHG) emissions, and water use of processed tomato products grown, processed, and consumed within the Great Lakes region of the United States, and tomato products produced in California and then shipped to the Great Lakes region for consumption. The purpose is to assess the potential for regional food systems to reduce selected environmental impacts, particularly the energy and GHG footprints, of consumer-ready, processed food products, when compared to national-scale food systems in which consumer products are shipped long distances. The study also examines the role of different types of food processing in influencing life cycle energy use, water use, and emissions.Our results indicate that California-produced conventional and organic tomato paste and canned diced tomatoes are almost equivalent in energy use and GHG emissions to regionally produced and consumed products, but use of developed water resources is significantly higher for California-grown products. California tomato production benefits from higher per hectare yields and soil amendments with lower carbon dioxide emissions. These efficiencies substantially offset the added energy use and GHG emissions associated with long-distance shipment of products to the Great Lakes region, as long as shipments are made by rail rather than by truck. Paste, the more processed and concentrated product evaluated, amplifies any environmental advantages or disadvantages accrued in the field production stage, due to its raw tomato to finished product ratio of 6:1, suggesting that comparative regional advantage can play a role in lowering life cycle environmental impacts of highly condensed foods shipped long distances.  相似文献   

3.
In 2014, the Rome Declaration on Nutrition recognized food system sustainability as a key condition to ensure adequate nutrition and access to healthy diets for all. Five years later, the evidence has never been more clear: despite a series of positive outcomes, our current food systems have increasingly generated severe environmental, social, and health-related costs. Many of the most severe health impacts of food systems can be traced back to the core practices of industrial food and farming systems (e.g. input-intensive agriculture; intensive livestock production; mass marketing of highly processed foods; deregulated global commodity chains). Yet alternatives exist.This article provides an overview of the key impacts generated by current food systems on human and environmental health, with an emphasis on their effects in the region of Europe and Central Asia. It then brings together evidence on how diversified agroecological systems can play a key role in meeting health and nutrition goals, while also addressing the environmental, social, and economic challenges created by current systems. Ultimately, the article sheds light on how to break away from the underlying drivers keeping current systems in place, and suggests how more diversified systems can effectively be promoted through systemic, multi-sector, and integrated policy approaches to ensure healthy diets for all.  相似文献   

4.
Many development planners have proposed food systems reforms that underscore the importance of coordination and/or integration of traditionally fragmented distributive institutions. However, attempts at nurturing market coordination schemes have been thwarted in part, because they have not gained the endorsement of channel participants. A planning model is suggested to consider the receptivity of channel participants to various market coordination arrangements and their ability to overcome barriers to coordination. This framework can be used to introduce selective market reforms.  相似文献   

5.
The production, transport and processing of food products have significant environmental impacts, some of them related to climate change. This study examined the energy use and greenhouse gas emissions associated with the production and transport to a port in Sweden (wholesale point) of 84 common food items of animal and vegetable origin. Energy use and greenhouse gas (GHG) emissions for food items produced in different countries and using various means of production were compared. The results confirmed that animal-based foods are associated with higher energy use and GHG emissions than plant-based foods, with the exception of vegetables produced in heated greenhouses. Analyses of the nutritional value of the foods to assess the amount of protein delivered to the wholesale point per unit energy used or GHG emitted (protein delivery efficiency) showed that the efficiency was much higher for plant-based foods than for animal-based. Remarkably, the efficiency of delivering plant-based protein increased as the amount of protein in the food increased, while the efficiency of delivering animal-based protein decreased. These results have implications for policies encouraging diets with lower environmental impacts for a growing world population.  相似文献   

6.
Food systems in developing countries are currently undergoing a rapid transformation towards high-value products and modern supply chains. While supply side aspects of this transformation have been analyzed previously, issues of consumer demand have received much less attention. This article analyses demand patterns for fresh fruits and vegetables in Vietnam, using household survey data and a demand systems approach. Demand for products from modern supply chains – particularly supermarkets and non-traditional imports – is highly income elastic, and the income effect is stronger than the impact of prices and supermarket penetration. This highlights the importance of considering demand side aspects when projecting future trends. Our results imply a continued restructuring of the food sector in the further process of economic development.  相似文献   

7.
This paper aims to use soft systems methodology (SSM) to identify management support system opportunities for managing energy and utility usage in textile manufacturing processes. It presents an approach based on SSM to analyze the complex situation of developing an effective energy and utility management support system (EUMSS). This involves the identification of the scope of the system and user requirements, conceptual modeling of complex problem situations, identification of actors and decision processes, and information-needs modeling. The current study pioneers the examination of the application of SSM to the development of a novel EUMSS and contributes to the body of information systems knowledge in the context of EUMSS design. There appears to be limited academic research in the field of energy and utility system development and, in particular, in the area of EUMSS design, and none in the area of the application of SSM to EUMSS design. In addition, the modeling process could be beneficial if EUMSS design ideas could be widely shared and discussed. The identified scope and system requirements can serve as a guideline for designing and developing an effective EUMSS for textile processing.  相似文献   

8.
The increasing popularity of cottage foods in the United States requires that state laws regulating the industry be given careful consideration. However, little is known about cottage food producers or their businesses. This article discusses results from the first comprehensive survey of cottage food producers in the United States. Linear and logistic regression analyses of survey responses from 775 cottage food producers and aspects of state cottage food laws suggest restrictive state laws may hinder entrepreneurship in rural communities. These results suggest policymakers should consider reducing restrictions on the cottage food industry in order to promote small-business creation and growth, especially among women and rural populations.  相似文献   

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