Johnston John M, Barber M Craig, Wolfe Kurt, Galvin Mike, Cyterski Mike, Parmar Rajbir
USEPA/ORD/NERL, 960 College Station Rd., Athens, GA 30605.
Ecol Modell. 2017 Jun 24;354:104-114. doi: 10.1016/j.ecolmodel.2017.03.021.
We demonstrate a novel, spatially explicit assessment of the current condition of aquatic ecosystem services, with limited sensitivity analysis for the atmospheric contaminant mercury. The Integrated Ecological Modeling System (IEMS) forecasts water quality and quantity, habitat suitability for aquatic biota, fish biomasses, population densities, productivities, and contamination by methylmercury across headwater watersheds. We applied this IEMS to the Coal River Basin (CRB), West Virginia (USA), an 8-digit hydrologic unit watershed, by simulating a network of 97 stream segments using the SWAT watershed model, a watershed mercury loading model, the WASP water quality model, the PiSCES fish community estimation model, a fish habitat suitability model, the BASS fish community and bioaccumulation model, and an ecoservices post-processer. Model application was facilitated by automated data retrieval and model setup and updated model wrappers and interfaces for data transfers between these models from a prior study. This companion study evaluates baseline predictions of ecoservices provided for 1990 - 2010 for the population of streams in the CRB and serves as a foundation for future model development.
我们展示了一种对水生生态系统服务当前状况进行新颖的、空间明确的评估方法，同时对大气污染物汞进行了有限的敏感性分析。综合生态建模系统（IEMS）可预测水质和水量、水生生物群落的栖息地适宜性、鱼类生物量、种群密度、生产力以及源头流域甲基汞的污染情况。我们将此IEMS应用于美国西弗吉尼亚州的煤河流域（CRB），这是一个8位水文单元流域，通过使用SWAT流域模型、流域汞负荷模型、WASP水质模型、PiSCES鱼类群落估计模型、鱼类栖息地适宜性模型、BASS鱼类群落和生物累积模型以及生态系统服务后处理器，模拟了97个河段的网络。通过自动数据检索和模型设置以及更新后的模型包装器和接口，促进了模型应用，这些接口用于从先前的研究中在这些模型之间进行数据传输。这项配套研究评估了1990 - 2010年为CRB溪流种群提供的生态系统服务的基线预测，并为未来的模型开发奠定了基础。
