Method for improving planting patch forest of saline-alkali soil original soil

Abstract

The invention relates to a method for improving planting patch forest of saline-alkali soil original soil. The method comprises the steps of plant pit sprinkling layer treatment, salt discharge pipeline installation, saline-alkali isolation treatment, additive mixing and watering and salt leaching, the mineral content of soil is efficiently and rapidly lowered by means of fresh water, so that nursery can be planted when the salt content of a planting layer is decreased to be 0.5%, the salt leaching process is continuously completed in the nursery stock watering process after planting is performed, and finally the soil salt content is lowered to be 0.3% or lower; the overall green area is effectively improved, the overall air quality is improved, the landscape architecture effect is enhanced, the saline-alkali soil utilization rate is increased, and the method has the advantages of being high in salt leaching efficiency, small in fresh water consumption and high in saline-alkali isolation capacity.

Description

technical field [0001] The invention relates to the field of landscaping engineering, in particular to a method for improving and planting forests in saline-alkali land. Background technique [0002] Saline-alkali soil, also known as saline soil, is a collective term for saline soil and alkaline soil. Soil salinization not only leads to the decline of soil productivity, but also causes many ecological and environmental problems. With the shortage of land resources and the aggravation of air pollution, effective measures are urgently needed to improve saline-alkali soil. [0003] The purpose of saline-alkali soil improvement is not only to eliminate harmful salt, but also to improve soil fertility. In fact, fertilization helps to eliminate harmful salt and consolidate the effect of salt drainage, and salt drainage itself is an important method of fertilization, which is conducive to the improvement of soil fertility, and the two promote each other. [0004] The survival rat...

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Problems solved by technology

[0004] The survival rate of plants planted in saline-alkali land is relatively low, especially in landscaping projects. Once the geology is saline-alkali land, the survival rate of plants is low and greening is very difficult

[0005] Carry out green planting on saline-alkali land, the general processing method is exactly to carry out salt discharge and salt pressing method to saline-alkali land at first, but there are still some deficiencies in the above methods, such as the salt discharge method is to rely on using a large amount of fresh water to carry out long-term scour to saline-alkali land so that saline-alkali land The salt content of the surface layer is reduced; the salt pressure method is to use natural precipitation or artificial large-scale irrigation to promote part of the salt to penetrate underground along the pores and cracks of the soil, and bring the surface soil salt to the bottom of the soil through water; almost all of the above methods It needs to use a lot of water, and the long-term use effect is not good

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