The invention discloses a method for improving a
saline-
alkali soil into a
paddy field in three-dimensional space, and relates to a method for improving the
saline-
alkali soil. The problems that an existing
saline-
alkali soil regulation method is only a temporary relief, and so that the phenomena of '
desalination' and 'accumulation of salt in the surface soil' can happen in an alternating mode are mainly solved. The method for improving the saline-alkali soil into the
paddy field in the three-dimensional space includes the steps that first, two
fresh water wells are arranged per
square kilometer; second, salt-leaching is conducted; third, the
salt content and the pH value of soil are detected after salt-leaching in the second step is finished; fourth, water is used in the growing period, wherein underground water in the
fresh water wells is pumped out according to conventional operation so that the entire planting work, growing work and irrigating work in the growing period of paddies can be completed, namely the saline-alkali soil is improved into the
paddy field. The method for improving the saline-alkali soil into the paddy field in the three-dimensional space has the advantages that occupied space is little, the construction period is short, and cost is low; time is short, the effect can be achieved rapidly, and the phenomenon of 'accumulation of salt in the surface soil' is avoided fundamentally; secondary
pollution is reduced, and salt and alkali water discharging time is shortened;
groundwater resources are exploited fully, efficiently, scientifically and reasonably; novel saline-alkali soil can not occur. The method is mainly used for improving the saline-alkali soil into the paddy field.