Dynamic change of the Yellow River Delta Using Historical Data and Remote Sensing Imagery

摘要

Historical data since 1855 and Landsat remote sensing images for the year 2006, 2009 and 2013 were selected as the main data sources and RS/GIS spatial analysis tools were combined to investigate the mouth channel change of Yellow River and monitor the dynamic change of Yellow River Delta. The results demonstrated that since the Yellow River changed its trajectory into Bohai Sea in 1855, its mouth channel migrated ten times and displayed various patterns; during 2006-2013, the area of Yellow River Delta was reduced by 18.54% (86.25 km~2). Considering land recession will bring about serious effects, decision makers shall implement effective policies in advance to combat various ramifications caused by land decreasing.