Developing a system to evaluate forest water use in large scale area using objective model redundance method

在本研究中，我们开发了一个系统来评估大尺度地区的森林水资源利用，以整合croout等人（2009）开发的客观模型冗余方法。本系统以森林生态系统模型之一的Biome-BGC为基础，引入指数池模型（Kondo et al., 1992），考虑日本山地森林流域的排放特征。利用日本九州地区山地森林实验流域的观测数据，对新开发系统的模型性能进行了验证，并探讨了模拟日本森林生态系统日流量和蒸散量的重要模型参数。

In this present study, we developed the system to evaluate forest water use in large scale area to integrate the method of objective model redundance developed by Crout et al. (2009). Our system is besed on Biome-BGC, which is one of the forest ecosystem model, with introducing exponential tank model (Kondo et al., 1992) to take into account the characteristics of discharge at mountainous forest watershed in Japan. We checked the model performance of new developed system using observed data obtained at mountainous forest experimental watershed located in Kyushu region, Japan and investigated significant model parameters on reproduce the daily discharge and evapotranspiration in Japanese forest ecosystem.