Development Of A Linked Hydro-Biogeochemical Model For An Arctic Watershed

来自海洋生物实验室和密歇根大学的Anne海洋生物实验室研究人员建议将一种新的、计算简单的模拟方案应用于理解陆地北极生态系统的水文控制问题。该模型将允许研究人员计算营养物质、气体和水通过湖泊、溪流和整个流域的通量，从而可以检查陆地植被的生态响应。迫切需要开发一种模型来确定物质和水流的流量，因为观测和计算整个北极的水流的成本太高了。新模型将与全球气候模型结合使用，以测试气候情景变化对北极植被响应的影响。北极预计将比地球上其他地方更大程度地感受到全球变化的影响，新的建模方案将允许在景观尺度上预测生态系统响应，而不需要运行复杂的模型，这需要非常长的计算时间。

ABSTRACT OPP-9622157 GIBLIN, ANNE MARINE BIOLOGICAL LABORATORY Investigators from the Marine Biological Laboratory and the University of Michigan propose to apply a new, computationally simple, modeling scheme to the problem of understanding the hydrological controls on terrestrial arctic ecosystems. The model will allow researchers to calculate the flux of nutrients, gases, and water through lakes, streams, and entire watersheds so that the ecological response of the terrestrial vegetation may be examined. The development of a model to determine the flux of materials and water flow is urgently needed because the cost of observing and calculating the flow throughout the Arctic is prohibitive. The new model will be used in conjunction with global climate models to test the effects of changing climate scenarios on the response of vegetation in the Arctic. The Arctic is expected to feel the impact of global change to a greater degree than other places on Earth and the new modeling scheme will allow predictions of the ecosystem response on the landscape scale without the necessity to run complex models requiring prohibitively long computational times.