Abstract We present an open source web application and ecosystem services model, People in Ecosystems/Watershed Integration (PEWI). PEWI integrates ecological models within an intuitive interface, allowing users to rapidly and dynamically evaluate how changes to agricultural land cover, use, and management affect ecosystem service outcomes. Users create and evaluate land-use and management scenarios in a virtual watershed across years and variable weather conditions using spatially explicit environmental patterns and dynamic feedback on 16 ecosystem service indicators. Indicators include agricultural production (i.e., crop and livestock) and environmental outcomes (i.e., water quality, habitat provision for biodiversity, soil quality, and carbon management). We based initial indicator equations on literature review, empirical data, existing models, and expert consultation, and finalized equations using a combination of testing, sensitivity analysis, and expert review. Model results allow users to explore nuanced tradeoffs and co-benefits between types and levels of agricultural products and other ecosystem services generated in a watershed. PEWI's niche as an ecological model is as a tool for engaging broad public audiences in understanding the science and management of landscapes and watersheds.

中文翻译：

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PEWI：面向广大公众的交互式基于网络的生态系统服务模型

摘要 我们提出了一个开源 Web 应用程序和生态系统服务模型，即生态系统/流域集成中的人员 (PEWI)。PEWI 在直观的界面中集成了生态模型，使用户能够快速、动态地评估农业土地覆盖、使用和管理的变化如何影响生态系统服务成果。用户使用空间明确的环境模式和对 16 个生态系统服务指标的动态反馈，创建和评估虚拟流域中跨年和可变天气条件的土地使用和管理场景。指标包括农业生产（即作物和牲畜）和环境成果（即水质、生物多样性的栖息地供应、土壤质量和碳管理）。我们基于文献综述、经验数据、现有模型、和专家咨询，并结合测试、敏感性分析和专家审查最终确定方程式。模型结果允许用户探索流域中产生的农产品和其他生态系统服务的类型和水平之间的微妙权衡和共同利益。PEWI 作为生态模型的利基是作为一种工具，让广大公众参与了解景观和流域的科学和管理。