During the periods of 12ka , 60ka, 118-130ka, the decreasement of summer monsoon resulted in the decreasement of SW monsoon, then correspondingly, the less high salinity water mass make this area low salinity.

• 在12ka、60ka、118-130ka、240-250ka几个时期由于夏季季风的减弱，引起西南季风流减少，从西边过来的高盐度水团的减少使该区盐度降低。