Afforestation method for sandy coast difficult site

The invention discloses an afforestation method for a sandy coast difficult site. The method comprises the steps of strip-shaped afforestation and soil preparation, planting ditch digging, planting hole fertilization and water retention agent application, container seedling planting, shading object covering and sand prevention barrier building. The method can solve the problem that the survival rate of coastal sandy coast-based dry forest belts is low; and through cooperation of planting ditches, a water retention agent and slow-release fertilizer, container seedling planting greatly improveswater and fertilizer utilization efficiency, the cost is saved, the afforestation survival rate and the preservation rate are effectively increased, and an extremely important role is played in localecological environment protection. The afforestation survival rate is 95% or above one month after planting, the forest survival rate is 90% or above after 6 months, and the average growth height of the seedlings reaches 88 cm