Author(s): Takaaki Sakamoto; Yui Shinozaki; And; Naoki Shirakawa
Linked Author(s): Naoki Shirakawa
Keywords: No Keywords
Abstract: Abstract: As it is well known social change gives great influence to environment. Japanese society is changing to decline its population and decrease in environment managing capability caused by decrease in upkeep is a serious issue. Changes of water load among three suburban catchments are predicted in this study. Qualities of water load of every catchment are predicted to increase in 2035. Especially quality of water load of Suwako catchment will become 99.6 times worse than today which is the worst of the three. This can be explained by its population decline rate which is 19%and is the highest of the three. Quantity of water load will decrease in every catchment. Another change in society is increase in river activity groups trying to protect river environment. Especially numbers of river activity groups in seriously polluted area are increasing. All of the three catchments are polluted but river activity groups are working to improve its environment. Kasumigaura catchment and Suwako catchment have possibility to improve their environment using river activities, but Shinjiko catchment is a difficult catchment to improve environment only with river activity groups so it needs help from others.
Year: 2012