The invention discloses a method for conducting
afforestation on
saline-
alkali soil. The method includes the steps of firstly, digging deep planting pits in the
saline-
alkali soil; secondly, paving two
layers of isolating curtains at the bottom of each planting pit and the inner wall of each planting pit respectively; thirdly, arranging filtering
layers between each
isolation layer and the bottom of each planting pit and between each isolating layer and the inner wall of each planting pit; fourthly, preparing
mixed matrix, filling the matrix into the pits and tamping down the matrix; fifthly, planting seedlings; sixthly, conducting
maintenance management. According to the method for conducting
afforestation on the
saline-
alkali soil, the difficult problems of lowering the
salt content, improving the soil and conducting
afforestation on the saline-alkali soil are solved. Through the measures of discharging salt and blocking salt, the
salt content in the distribution range of the
plant root systems is lowered, the
plant root systems are promoted to absorb
nutrient and water and
discharge salt in a unidirectional mode, and a soil environment which is beneficial to
plant growth is created. According to the method for conducting afforestation on the saline-alkali soil, the
survival rate and the preserving rate of the seedlings are improved, and the method is low in cost compared with a traditional method for improving the saline-alkali soil by merely paving the salt isolating
layers, replacing soil and conducting afforestation, is suitable for the saline-alkali soil afforestation and the
plant cover recovery project, and can also be used in the manual construction and the
machine and human coordinated construction.