Accelerating Nutrient Cycles at the Riparian Land : Water Interface

河岸带是陆地和水生系统之间的动态界面，最终控制着陆地和海洋之间通过河流转移的常量营养素碳（C），氮（N）和磷（P）。令人担忧的是，随着气候的变化，这些系统的稳定性正在发生变化，因此可能会加速养分循环速率。该提案的重点是我们的动态河岸反应界面（RRI）的概念，以及它如何管理从陆地到河流，也许到大气，并向前到海洋的系统的营养物质的命运。该提案描述了一种方法，将数据丰富的英国研究集水区（苏格兰迪，英国伊甸园）与旗舰国际集水区平台（瑞典和德国）相结合。我们建议在地理气候区域进行新的生物地球化学研究和新的建模，以评估河岸功能，控制土地到水界面的营养物质转移的潜在加速，以及随着气候变化，这些功能如何扩展到营养循环的全球显著变化。

Riparian zones are the dynamic interfaces between terrestrial and aquatic systems, ultimately governing transfers of the macronutrients carbon (C), nitrogen (N) and phosphorus (P) between the land and the oceans, via rivers. The concern is that with a changing climate, the stability of these systems is shifting, and potentially the nutrient cycling rates are accelerating as a consequence. This proposal focuses on our concept of the dynamic riparian reactive interface (RRI) and how it governs the fate of nutrients down the system from the land to the river, perhaps to the atmosphere, and onward to the oceans. The proposal describes an approach that combines data-rich UK research catchments (Scottish Dee, English Eden) with flagship international catchment platforms (in Sweden and Germany). We propose to conduct new biogeochemical research and new modelling across geo-climatic regions to evaluate riparian functions controlling the potential acceleration in nutrient mass transfers across the land to water interface and how these may scale to globally-significant changes in nutrient cycles as our climate changes.