Streamsystem is a critical and basic unit of watershed management.
河溪系统是流域管理中最基本和最重要的单元。
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It is one of the major tasks to execute query timely with less performance and precise loss in a data streamsystem when the system resource is limited.
This paper presents a forecasting model of runoff to Wuyandong subterranean streamsystem by BP ANN based on the data of precipitation and flux in Luota, west Hunan.