This paper gave a review of the state of the beach dewatering in the past sixty years on theoretic Research, laboratory studies,field investigation,and discussed the feasibility and the great applied value of beach dewatering in China by reviewing previous studies and analyzing engineering installations overseas.

Ecology on intertidal benthos of sandy beach around international airport, Changle;

Contrastive analysis on the run-up & takeoff-jump before the drop shot between beach volleyball and indoor volleyball;

By using the three dimension test force platform,the author makes an analysis on dynamic test of jumping on the beach and floor for 12 elite beach volleyball players.

With the increasing interests in the recreation tour to Nanji Archipelago,large amounts of tourists and pollutants have harmed the habitat environment and growth of the shellfish in the sand beach of Da-sha-ao,the most typical and popular sand beach of the archipelago.