UNS: U.S.-China: Integrated Systems Modeling of Food-Energy-Water (FEW) Nexus for Urban Sustainability

1605202 （Xu）本项目将通过开发和应用集成系统建模框架，推进食物-能源-水（FEW）关系建模的科学与工程。建模框架将使城市FEW联系的定量特征，确定效率改进的领域，并评估政策和技术情景的后果。底特律和北京的案例研究结果将指导政策和技术的发展，以更好地管理这两个试验台以及美国、中国和世界各地的其他类似城市的少数资源。美国和中国在这个项目上的合作为一组具有不同背景的研究人员提供了分享数据、专业知识和经验的机会，以模拟城市FEW关系。该项目还将吸引涉众寻求输入，以改进建模框架和场景。研究结果也将提供给利益相关者，以支持他们的决策有关少数联系。通过美中合作，将为不同群体的STEM研究生和本科生创造独特的机会，让他们在国际跨学科环境中进行前沿研究。本研究采用了多学科的最新知识，开发了一个集成的系统建模框架来理解城市FEW关系。动态物质流分析将表征城市少数资源的存量和流动。网络组成部分的结构和重要性将使用来自不同但相关领域（生态网络分析和复杂网络分析）的基于网络的度量和方法进行检查。政策和技术方案将使用这些基于网络的指标和方法进行评估，以确定共同利益并避免意外后果。由此产生的城市FEW联系建模框架将涉及多个维度和尺度：系统（集成的FEW系统）、空间（城市边界内外的关键系统过程）和时间（短期流量和长期库存）。建模框架还将应用于两个不同的测试平台（底特律和北京）进行演示。虽然案例研究结果是特定于测试平台的，但集成系统建模框架将普遍适用于理解其他城市地区的FEW联系。

1605202 (Xu)This project will advance the science and engineering of Food-Energy-Water (FEW) nexus modeling by developing and applying an integrated systems modeling framework. The modeling framework will enable quantitative characterization of urban FEW nexus, identify areas for efficiency improvement, and evaluate the consequences of policy and technology scenarios. Results from the case studies in Detroit and Beijing will guide policy and technology development for better managing FEW resources for these two testbeds as well as other similar cities in the U.S., in China, and around the world. The collaboration between the U.S. and China on this project provides opportunities for a group of researchers with diverse background to share data, expertise, and experience on modeling urban FEW nexus. The project will also engage stakeholders for seeking inputs to improve the modeling framework and scenarios. Research results will also be provided to stakeholders to support their decision making relevant to FEW nexus. Through the U.S.-China collaboration, unique opportunities will be created for a diverse group of graduate and undergraduate STEM students to conduct cutting-edge research in an international, interdisciplinary environment.The research employs the latest knowledge from multiple disciplines for developing an integrated systems modeling framework to understand urban FEW nexus. Dynamic material flow analysis will characterize urban FEW resource stocks and flows. The structure and importance of network components will be examined using network-based metrics and methods from different but related fields (ecological network analysis and complex network analysis). Policy and technology scenarios will be evaluated using these network-based metrics and methods to identify co-benefits and avoid unintended consequences. The resulting urban FEW nexus modeling framework will address multiple dimensions and scales: systems (integrated FEW systems), spatial (key system processes that are both within and outside the city boundary), and temporal (short-term flows and long-term stocks). The modeling framework will also be applied to two distinct testbeds (Detroit and Beijing) for demonstration. While the case study results are specific for the testbeds, the integrated systems modeling framework will be generally applicable for understand the FEW nexus for other urban areas.