Abstract

Sông Cửu Long Plain is characteristed by various aggradation and degradation in 20 modem geodynamic-structure blocks (CTĐĐL). The average aggradation value in 2013 year is 0.22 mm/yr, is 0.19 mm/yr in 2014 year. The mean aggradation thickness of the studied is 0.2 mm/yr, average rate of degradation is -2.7 mm during 2013-2014 year stage. The volume of suspended sediment aggrdated on ĐBSCL is 8.25 cubic metre milions (CMM) in 2013 year, the 2014 year is 7,13 CMM, the average of two years to be 7.5 CMM. Prediction trend of the height of aggradation to elevation of Sông Cửu Long Plain surface will be 7 mm to 2050 year time and 14 mm to 2100 year time. The average rate aggrading to elevation of Sông Cửu Long Plain surface will be smaller from 8 to 9 times in comparison with the rate of today rise sea level as 1.6-1.8 mm/yeas (IPCC). Results is important signification to correct the Digital Elevation Model in order to perfect the climate change scenario, rise sea level as well as proposal adaptability solutions in ĐBSCL.