抄録
The low pH of acid precipitation is buffered by soil to some extent, but the pH-buffering mechanism also releases variety of materials, which may cause wide effect on the aquatic environment. So in this research, we have permeated artificial acid rain through soil to examine the quality of soil leachates. As a result, we have found that some soils around Lake Biwa have reached the aluminium buffer range which has possibilities of deteriorating the aquatic ecosystem. We have also found that phosphorus included in the leachate causes great effect on algal growth potential under low pH condition as 4.0.
