We introduce SIMPLE-G, a Simplified International Model of agricultural Prices, Land use, and the Environment- Gridded version, which is a novel tool for evaluating sustainability policies in a global context while factoring in local heterogeneity in land and water resources and natural ecosystem services. This multi-scale model can provide boundary conditions for local decision makers, as well as capturing feedback from local policies to national and global scales. To illustrate its value in environmental analysis, we provide two applications of the model. First, we quantify the local stresses on land and water resources due to global changes in population, income, and productivity. Second, we quantify the global impacts of local policy responses and adaptations to water scarcity.

我们介绍了SIMPLE-G，这是一种简化的国际农产品价格，土地利用和环境网格化模型，它是一种新型工具，可在全球范围内评估可持续发展政策，同时考虑到土地，水资源和自然生态系统的局部异质性服务。这种多尺度模型可以为地方决策者提供边界条件，也可以收集地方政策对国家和全球尺度的反馈。为了说明其在环境分析中的价值，我们提供了该模型的两个应用。首先，我们量化由于人口，收入和生产率的全球变化而对土地和水资源造成的局部压力。第二，我们量化当地对策和对水资源短缺的适应措施对全球的影响。