The invention discloses a
temperature difference thermal driving superficial
water circulation saline-alkali land salt reducing method, which comprises the following steps: firstly, preparing the land, turning over and leveling the target land, discarding non-agricultural soil substances in the soil, then ridging and furrowing until the
ridge height is 10cm, adjusting the
moisture content, and then covering the
ridge surface with a transparent
plastic film to form a coverage area of the
ridge surface and exposed furrows to make A / Bgt; (E-D) / D, A is the width of the coverage area, B is the width of the furrows, D is the
precipitation amount, and E is the
evaporation amount. According to the technical scheme, discharged high-
salinity water is not generated, and
pollution to surrounding water and soil is avoided; no extra
chemical substance is added, the soil ecological
system is prevented from being polluted and damaged, the soil
ecological environment is practically protected, and the sustainable
agricultural development concept is met. And the implementation process is relatively simple, a large amount of
capital investment is not needed, the cost is low, and good popularization and application prospects are achieved.