INFEWS/T2: Sustainable Agriculture in the Nexus of Food, Energy, Water and Nutrient on National and Global Scales

为了满足全球对粮食和生物能源日益增长的需求，到2050年农业生产必须翻一番，这给土地和水资源带来了额外的压力。如何以及在哪里增加农业生产对粮食和能源供应的可持续性和复原力至关重要，但人们对这一点知之甚少。因此，我们将综合多学科数据并开发模型，以辅助农业集约化战略的决策，包括技术进步和国际贸易。该项目将在国家乃至全球范围内推进粮食-能源-水系统中有关可持续和弹性农业生产的知识，同时为正在进行的农业、贸易、环境和国家安全方面的国家政策变化提供及时的投入。该项目的总体目标是在国家和全球范围内制定和评估战略，通过综合网络-人-物系统可持续地增加农业生产。为实现这一目标，该项目将：1)制定一个指标体系和数据库，以衡量农业生产的可持续性和复原力的几个方面；2)分析和模拟技术和管理实践、资源投入和气候对产量的影响；3)提高作物管理在全球变化评估模型中的代表性，以预测农业集约化的影响；4)开发决策支持工具，优化国内集约化和国际贸易，促进农业可持续生产；5)试点跨文化学习交流项目，让中美高中参与农业可持续发展背景下的系统思考。

To meet the growing global demand for food and bioenergy, agricultural production must nearly double by 2050, placing additional pressures on land and water resources. How and where to increase agricultural production is critical for the sustainability and resilience of food and energy supply, but is poorly understood. Therefore, we will synthesize multidisciplinary data and develop models to assist decision making on agricultural intensification strategies, including technology advancement and international trade. This project will advance the knowledge in the food-energy-water system regarding sustainable and resilient agricultural production on national to global scales, while providing timely inputs to ongoing changes in national policies regarding agriculture, trade, environment, and national security.The overarching goal of this project is to develop and evaluate strategies on national and global scales that increase agricultural production sustainably with an integrated cyber-human-physical system. To achieve this goal, the project will: 1) develop an indicator system and a database to measure several aspects of sustainability and resilience of agricultural production; 2) analyze and model the impacts of technologies and management practices, resource inputs, and climate on yield; 3) improve the representation of crop management in the Global Change Assessment Model to project the impacts of agricultural intensification; 4) develop a decision-support tool to optimize domestic intensification and international trade for sustainable agricultural production; and 5) pilot a cross-cultural learning exchange program to engage American and Chinese high schools in system thinking in the context of agriculture sustainability.