PROTECTION AND UTILIZATION OF LAKESHORE AND NATURAL ENVIRONMENT IN LAKE BIWA

Recently beach erosion is severe on the lakeshore in Lake Biwa and beautiful sandy shores have been gradually disappearing. In order to enhance the effect of the countermeasures against beach erosion on the lakeshore of Lake Biwa with keeping excellent natural environmentand scenery it is important to utilize the protection method combining various facilities aswell as the beach nourishment instead of the old-fashioned linear method using a seawall.Furthermore the utlization of some vegetations as a way in a system for preventive measures against beach erosion is considered to be useful, since those vegitations growing near the shoreline with deep roots are effective for preventing beach erosion. This study summarizes these preventive works with utilization of natural vegetations.