据日本《河川》1986年第3期报导,日本在已建水库中,发现一些水库出现了富营养化现象。为了防止这种现象的发生,自1982年起,在室生水库、釜房水库、绿川水库和一库水库设置了曝气设施,进行了小规模试验。曝气设施系在库底供氧,除改善溶解氧外,并通过使底层水和表层的对流,防止库底营养盐的溶析,控制日照和水温,以及防 According to Japan’s “River” No. 3 of 1986 reported that Japan has been built in reservoirs, found some reservoirs eutrophication. In order to prevent this from happening, since 1982, aeration facilities have been set up in the Teisheng Reservoir, the Kushan Reservoir, the Midorigawa Reservoir and the Rei Reservoir to carry out small-scale experiments. Aeration facilities at the bottom of the oxygen supply, in addition to improving the dissolved oxygen, and by the bottom of the water and surface convection, to prevent the bottom of the nutrients dissolved in the control of sunshine and water temperature, and anti