Abstract
We tried to develop climate class due to external load database on climate change. And It used verification of Japanese reservoir water index(Eutrophication frequency ratio, and turbidity) to find out relation to external load production.
Dtail resuts are as follows: 1) There is a lot of external load at Bload-leaved deciduous forest, Plannning area. 2) The external load volume show a weak association between eutrophication index. 3) The external load volume correlate strongly with turbidty.