一、前言珠江口滨海滩涂具有面积大,分布广、底质细,肥力高,营养物质丰富,淡水水源条件较好的特点。珠江三角洲陆地的沉积发育,从成因上说是水沙运动在一定环境下的必然结果。有史以来,人们在这个区域顺水沙之势,不断地筑堤挡潮,发展生产,沧海变桑田的历史,是近代珠江三角洲发展的历史。 I. Introduction Pearl River estuary beach with large area, widely distributed, the bottom of fine, high fertility, nutrient-rich, fresh water, better water conditions. The depositional development of the land in the Pearl River Delta is, from the genesis point of view, an inevitable result of the water and sediment movement in a certain environment. Historically, people in this area along the sand trend, continue to embankment tide, development of production, the vicissitudes of history, is the history of the development of the modern Pearl River Delta.