Do you want to ask what is the difference between the impermeable layer and the flat layer of cultivated paddy fields? The difference between the impermeable layer and the flat layer of cultivated paddy field is the different use. The impervious layer is mainly used to prevent water leakage and loss and ensure the stability of humidity and water level in paddy fields; Leveling layer is mainly used to improve irrigation uniformity, reduce water flow speed and provide good growth conditions for plants. Both of them are important links in paddy field cultivation, aiming at optimizing soil environment and improving farmland water use efficiency and crop yield.