Energy–water–food nexus in the Spanish greenhouse tomato production

Demystifying the fears and myths: The co-production of a regional food, energy, water (FEW) nexus conceptual model

Food-energy-water (FEW) nexus: Sustainable food production governance through system dynamics modeling

Integrating the water-energy-food nexus and LCA + DEA methodology for sustainable fisheries management: A case study of Cantabrian fishing fleets

Highlights Synthesize existing knowledge in defining and conceptualizing FEW Nexus. Provide scientists and practitioners in the FEW domains with the tools to define and conceptualize. The study provides narrow-broad definitions and simple-complex conceptualization frameworks for the FEW Nexus. Abstract. Food-energy-water (FEW) resources are fundamental to society’s functioning and understanding them is crucial for sustainable development and supporting life on earth. This article presents a review of the current approaches being used in the development of FEW Nexus frameworks, with an emphasis on the methods for defining and conceptualizing these frameworks by different types of stakeholders. This framework provides scientists, consultants, and practitioners in the FEW domains the tools and knowledge needed to successfully implement the Nexus. The article also describes knowledge gaps in the FEW Nexus domains. The objectives of this article are to (a) synthesize existing knowledge to support stakeholders in defining and conceptualizing their FEW Nexus, (b) provide a framework to clarify the definitions and conceptualizations of FEW Nexus for a project or an application being developed for a specific stakeholder application, and (c) apply the experience and principles of the FEW Nexus to other Nexus that can be developed. Stakeholders in this study include the users of the Nexus, scientists, and a range of practitioners, including policymakers, the private sector, practitioners in the field, and resource managers, among others. The following questions assisted in addressing the objectives: What are some existing definitions and conceptualizations in the FEW Nexus? Which elements are currently included in the definitions and conceptualizations? How should FEW Nexus be defined and conceptualized for a project or application? How can existing definitions be adapted, or new ones created, for a project or study? What are the consequences of choosing a particular definition or conceptualization? Based on this experience, the steps needed for developing a FEW Nexus are reviewed and clarified. The study provides narrow and broad definitions and simple and complex conceptualization frameworks of FEW Nexus that stakeholders can use while being aware of the limitations and knowledge gaps. Keywords: Food-Energy-Water (FEW) Nexus conceptualizations, FEW Nexus definitions, Narrow and broad definitions, Simple and complex conceptualizations.

Factors influencing the use of decision support tools in the development and design of conservation policy

Development of a method to assess synergy and competition for water use among water-energy-food nexus in the Yellow River basin: Water quantity-quality dimensions

In the food-energy-water (FEW) nexus, livestock has a dominant place. It is generally considered as water, energy and land-intensive. Aquaculture could provide additional animal protein and contribute to meeting the food demand. However, aquaculture requires natural resources and causes freshwater pollution due to aquafeed, fertilizer, and hormone use. This study assesses the sustainability of aquaculture using the indicators water footprint (WF), energy footprint (EF) and land footprint (LF), comparing results with livestock. It uses extensive, semi-intensive and intensive Tilapia aquaculture in Mexico as a case study including broodstock, breeding, fattening, processing, and transportation phases. Tilapia production in intensive aquaculture has the largest footprints. Blue WFs are smallest in semi-intensive systems; green WFs, EFs and LFs are smallest for extensive systems. For protein, tilapia from intensive systems has the largest WF (126 l/g protein), beef (51 l/g), pork (33 l/g) and poultry (14 l/g) have smaller WFs. EFs per unit of protein or nutritional energy fall in the range of values for beef, poultry and pork. LFs of Tilapia (m2/kg) are larger than LFs of poultry but fall in the range of beef and pork. Per unit of nutritional energy EFs are similar to EFs for beef but larger than EFs of poultry and pork. From a FEW nexus perspective, it is not more sustainable to replace livestock with Tilapia. Tilapia requires more freshwater than beef, pork and poultry and pollutes larger amounts of water. For energy and land, Tilapia is not the better choice, because footprints are comparable.

PDF HTML阅读 XML下载 导出引用 引用提醒 城市食物-能源-水关联关系:概念框架与研究展望 DOI: 10.5846/stxb201809081926 作者: 作者单位: 北京师范大学环境学院,北京师范大学环境学院,北京师范大学环境学院,北京师范大学环境学院,北京师范大学环境学院,北京师范大学环境学院,密歇根大学自然资源与环境学院,安娜堡,密歇根州 -,美国 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金国际（地区）合作与交流项目（51661125010）；国家重点研发计划项目（2017YFC0505703）；环境模拟与污染控制国家重点联合实验室项目（17L02ESPC） Urban food-energy-water (FEW) nexus: conceptual frameworks and prospects Author: Affiliation: Beijing Normal University,Beijing Normal University,,,,, Fund Project: This work was supported by the Funds for International Cooperation and Exchanges of the National Natural Science Foundation of China (51661125010), National Science and Technology Major Project of the Ministry of Science and Technology of China (2017YFC0505703), and State Key Joint Laboratory of Environmental Simulation and Pollution Control (17L02ESPC) 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:食物、能源和水（Food，Energy and Water，FEW）是人类生存与发展不可或缺的基础性资源，且三者之间存在密切的关联关系（Nexus），即其中任何一项资源的生产与供给均依赖于另外两项资源。FEW关联关系作为应对全球人口增长、资源短缺和生态环境恶化等问题的系统性管理理念，已引起国际学术界与实践管理领域的广泛关注。然而，目前对FEW关联关系仍然缺乏统一和清晰的界定，现有研究大多是基于不同角度理解与量化"关联关系"。城市作为全球资源消费的主阵地，其FEW关联关系更为复杂，亟待建立针对城市生态系统的概念框架。对FEW关联关系的发展历程、概念表述以及研究方法等方面进行全面回顾和系统分析。在此基础上，从"资源依存"、"资源供给"和"系统集成"等3个视角构建了城市FEW关联关系的概念框架，并进一步阐述FEW关联关系未来研究的重点方向——"系统性表征"、"时空演化"与"协同管理"，为城市优化资源配置，实现集成管理提供一种新思路和定量化的参考依据。 Abstract:Food, energy, and water (FEW) are three kinds of essential and indispensable resources to human beings. Moreover, they are interlinked with one another, and changing the components of one system may lead to ripple effects (desired or undesired) on the other two systems. Currently, the FEW nexus is increasingly concerned by scholars and policy makers. The FEW nexus is a key concept to address the issues of population boom, resource scarcity, and environmental degradation. However, there still lacks consistent and explicit cognitions of the FEW nexus. Most of existing studies focus on the characterization and quantification of the FEW nexus from multiple perspectives. Little attention is paid to the universal experience in synergy management, especially for urban systems. Cities are critical carriers of the population and economic activities and are also important contributors to the FEW consumption. They are essential for the sustainable development and are thus inextricable parts of the FEW nexus. However, urban FEW nexus has been rarely concerned by existing studies. This study presented a comprehensive review to track the progress of the FEW nexus. We also proposed a three-dimensional conceptual framework of the urban FEW nexus to achieve urban sustainable development goals, including resource interdependency, resource provision, and system integration. Finally, we discussed future directions of urban FEW nexus studies. 参考文献 相似文献 引证文献

How do corporate select and employ streamlined indictors to facilitate supply chain management on its products is an issue of interest and practical significance. Both water footprint and carbon footprint are popular indicators with sound public perception to assess product environmental performance and further undertake supply chain management. As a big contributor to water scarcity as well as greenhouse gas (GHG) emissions, immense potential exists in agrifood sector for reducing environmental impacts exerted from humanity's production and consumption activities. In this paper, water and carbon footprints were calculated for three soybean products at brand level, under a process-based life cycle assessment (LCA) methodology to evaluate the applicability of the concept and method for food product. The results demonstrated well comprehensiveness and practicality of water and carbon footprints as streamlined indicators in product supply chain management for the selected products. Footprinting values were compared among different life cycle stages and possible mitigation strategies were put forward for water use and GHGs reductions throughout the supply chain.

Linking forest policy issues and decision support tools in Europe

This paper undertakes a systematic review of the literature to understand current trends in the food–energy–water (FEW) nexus for development-oriented policy support. The paper follows three steps: (a) a bibliometric analysis of FEW nexus research, (b) a content analysis of FEW nexus research, and (c) development of a framework that fills existing gaps in FEW nexus research. The review found that FEW nexus approaches have gained ground in academia as a resource management tool and policy guide; however, the process does not have a robust conceptualization. The current FEW nexus approaches focus on national, regional, and international scales of analysis to understand the three sectors’ interactions. Further, these approaches underline the nexus processes, which have been researched in detail, including synergies and tradeoffs. However, research on the FEW nexus has not adequately explored the social factors that form part of the nexus, especially at the local household scale. Factors such as the gender dynamics of resource ownership, work roles at different scales, household incomes, and culture are essential components that are yet to be explored in FEW nexus research. Most of the existing frameworks on the FEW nexus overemphasize models and the quantitative measurement of processes while paying limited attention to social aspects. Still, these social aspects are crucial, especially on the household scale; therefore, to overcome these gaps, this paper proposes a FEW nexus framework at the local household scale that includes socio-economic determinants.

Water Footprint Assessment (WFA) has emerged as a new interdisciplinary field of study, that specialize in the study of water use, scarcity, and pollution, in respect to production, consumption, and trade of water-intensive products and services. It consists of the analysis of various techniques and practices, policy plans, and governance mechanisms that contributed to the rise of sustainability, efficiency, and equitability of water footprints. This study focuses on WFA specifically for electronic and food manufacturing products. It determined contributions of different players namely the governments, companies, investors and civil society. This study typically reviews water use in relation to demand for electronic products, food and energy used. It appraisals the sustainable water use translated into coherent food, energy, incentives and trade policies. Water-Food-Energy (WFE) nexus from the perspective of electronic and food manufacturing products are also reviewed. In this study, the challenges in estimating water footprints and WFE nexus for electronics and food manufacturing products include the understanding of various levels of demand, geographical, temporal variations, assessment of uncertainties involved, and the assessment of water-footprint related problems and solutions. The outcomes showed that combining several methods of WFA can obtain adequate results for the water footprint accounting. The WFE nexus is preferred to use life-cycle assessment (LCA) method to identify the environmental impacts. The significances of this study are to raise the awareness on water usage in the supply chain process of the electronic and food products then recommend good practices in water usage.

Energy, carbon and water footprints on agricultural machinery

Integrated governance for the food–energy–water nexus – The scope of action for institutional change

This review provides an overview of recent progress in water footprint research across theoretical development, methodological improvement, and practical implementation at different levels. It analyzes the development of the water footprint concept, reviews existing calculation methods, and discusses their strengths and limitations. The review pays particular attention to interactions within the food–energy–water nexus and demonstrates how water footprint analysis can reveal resource interdependencies and trade-offs. It also highlights the significant progress made in integrating the assessment of the water footprint with other environmental indicators, particularly within the “environmental footprint family”: water, environment, energy, carbon, land, nitrogen, and phosphorus footprints. This review contributes to the growing literature in water resource management. It provides policymakers and researchers with some valuable insights into strategies for sustainable resource use.