Biodiversity Mechanisms and their application to evaluation methods on river environment in pristine floodplain of the Tagliamento River

为了澄清的机制，创造和维护的生物多样性的河漫滩，我们进行了一系列的实地工作，测量流域的泥沙生产和监测调查的地貌变化的河漫滩使用间隔相机。根据群落水平的DNA序列数据，对河漫滩内各生境类型的动物多样性进行了调查，同时对各生境类型的有机质来源和呼吸速率等群落代谢参数进行了测定。利用分汊河道二维水沙数学模型，建立了分汊河道在水沙条件变化下生态功能变化的预测方法。

In order to clarify the mechanisms for creation and maintenance of biodiversity in the floodplain of the Tagliamento River, we conducted a series of field works on measurement of the sediment production in the basin and monitoring surveys on the geomorphological changes in the floodplain using interval cameras. Faunal biodiversity of each habitat type within the flood plain was investigated based on DNA sequence data of the community level, and at the same time, parameters of community metabolism such as organic mater origin and respiration rate were also measured for each habitat type. Methods for prediction of changes in these ecological functions under changing sediment and flow regimes have been developed using 2D flow and sediment transport model in the braided river channels.