STUDY ON THE MECHANISM OF ALGEE PROLIFERATION IN RESERVOIR AND ITS CONTROL THROUGH CONTINUAL AUTOMATIC OBSERVATION

Mano和Goto在Nakahara水库进行了连续观测，分析了热收支，确定了地表的边界条件，并找到了扩散系数作为Richardson数的函数。然后从光、温度和营养盐的角度得到氧气产生和消耗的精确特性。田中在静川湾观测了在西风和潮差的作用下海湾水快速交换的条件。Sudo通过培养混合种作为氮磷比和温度的控制因素，发现了蓝藻占优势的机理。Noike通过中试装置研究了预坝对悬浮磷的去除效果，并研究了厌氧条件下磷的液化情况，以评估潜在营养通量。石川观测了石川坝，分析了洪水条件下的mad、SS和磷，并找出它们之间的关系。

Mano and Goto executed continual observation at the Nakahara reservoir and analyzed heat budget to specify the boundary condition at the surface and to find diffusion coefficient as a function of Richardson number. Then the precise characteristics of oxygen production and consumption are obtained in terms of light, temperature and nutrition salts.Tanaka made observation at the Shizugawa Bay to find the condition for rapid exchange of the bay water in the effects of west wind and tidal range.Sudo has found the mechanism of Cyanobacteria domination though the cultivating mixed species as controlling factors of N/P ratio and temperature.Noike researched the effects of pre dams on removal of suspended phosphorus through a pilot plant to confirm the effectiveness and studied liquation of phosphorus under the anaerobic situation to evaluated the flux which is the latent nutrition.Ishikawa observed at Shitigashuku Dam to analyze mad, SS and phosphorus at floods condition and to find relationship among them.