The invention discloses a coastal
saline-
alkali soil terrace type afforesting method for improvement of dredger fill. The coastal
saline-
alkali soil terrace type afforesting method for improvement of the dredger fill comprises
water seepage ditches, foundation
terrain dredger fill,
straw curtains, geotechnical cloth, improved planting soil, local models and the like, wherein square seepage ditches of the
water seepage ditches are longitudinally excavated in the lowest position of the foundation
terrain dredger fill, particle-size
ballast stones are filled into the square seepage ditches, the distance between the foundation
terrain dredger fill and the ground is 1-1.5m, the gradient of the foundation terrain dredger fill is 15 degrees to 30 degrees,
straw is distributed on the foundation terrain dredger fill, the geotechnical cloth is laid on the
straw curtains, and then the improved planting soil is laid on the geotechnical cloth. Due to the fact that the coastal
saline-
alkali soil terrace type afforesting method for improvement of the dredger fill is combined with the terrace type shape, the coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill is beneficial to retaining rainwater, enables
salinity to be effectively leached and reduced, is beneficial to
fertilizer and
soil conservation, and enables the
survival rate of landscape plants to be more than 90%, the waste is effectively utilized, natural resources are protected, and afforesting cost is reduced by more than 50%.