Washing and desalinating system for sand soil in river mouth blowing-sand reclaimed land before planting greenery

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery, comprising a levee (14) formed by sand blowing and located on a side of a river (1), wherein a slope of the levee (14) closer to the river (1) is a waterside slope (4), and the other slope of the levee (14) is a landside slope (12);

• wherein the leaching and desalinating system comprises a water pump and pipe assembly arranged in the river (1), a freshwater storage tank (6), and a main diverting and draining channel (5) arranged at a top of the levee (14);
• wherein the water pump and pipe assembly is configured to lift freshwater from the river (1) to the freshwater storage tank (6) through a water delivery pipe (3), a plurality of infiltration parts in which greenery are planted are provided on the waterside slope (4), the plurality of infiltration parts are connected to each other via a plurality of drainage infiltration channels (11);
• wherein, of the plurality of drainage infiltration channels (11), those closer to the main diverting and draining channel (5) are connected to the main diverting and draining channel (5), and those closer to the river (1) are connected to the river (1).