Abstract
The rehabilitation of saline–alkaline soils in coastal regions has the potential to significantly enhance the ecological environment of these areas. This process not only increases agricultural productivity but also contributes to the economic advancement of coastal communities. A field experiment was conducted with different wood vinegar solution concentrations to investigate the impact of wood vinegar solution on soil using typical saline–alkali soil from Chongming Ecological Island. The research showed that the application of wood vinegar significantly (
p
th
day (
p
< 0.05). Moreover, the addition of wood vinegar solution increased soil nutrients, with the available phosphorus (AP) and the total nitrogen (TN) content increasing by 31.83% and 181.18%, respectively. These findings suggest that wood vinegar solution can reduce SS and improve fertility, and the best improvement can be achieved by proportioning the wood vinegar solution at the proper concentration. The beneficial effects of soil improvement on crop yields over extended time series require further investigation. Nevertheless, the findings support the potential of wood vinegar as a sustainable soil conditioner.