Impact of anthropogenic activities on morphological and deposition flux changes in the Pearl River Estuary, China.

According to the DEM data, the area and rate of erosion in the PRE showed an increasing trend (Table 3 ).

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Although the water volume of the PRE showed a decreasing trend from 1936 to 2017, the water volume reduction rates for 1996–2005 and 2005–2017 were only 29% (1.27 × 10 7 m 3 /year) and 12% (0.53 × 10 7 m 3 /year), respectively, of that for 1936–1972.

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