The reclamation of heavy saline soil and the improvement of ecological landscapes have become major technical problems on heavily saline muddy coastal land. Thus, the objective of this study is to introduce an effective technical mode for reclaiming heavily saline coastal soils and establishing vegetation in coastal regions. The technical mode is a comprehensive technology that mainly entails the following: salt reduction in the cultivated layer through the application of amendments, drainage of salt by means of a subsurface pipe with freezing saline water irrigation, and inhibition of salt with straw mulching. The results showed that adding corn straw amendments effectively decreased the soil salinity in the topsoil to less than 5.0 g/kg. Embedding subsurface pipes at an 80‐cm depth is the best choice to effectively decrease soil salinity under local soil and water environmental conditions. Freezing saltwater irrigation can be applied to effectively drain the salinity of the whole soil profile. The survival rate of salt‐tolerant plants was more than 94%. This study can provide technical support for soil reclamation, vegetation establishment, and environmentally friendly greening on heavily saline muddy coastal land.
Ju et al. (Thu,) studied this question.