Answer: Tariffs
Explanation:
Tariffs is defined as type of tax that is implemented on products or services that is imported or export.Prices of goods are increased and this price is called as custom duty.It helps in cutting out competition among domestic organizations through restraining.
According to the question, taxes imposed by Japan is known as tariffs in which they are forcing charges due to pressure raised by domestic group on leeks, reeds etc as these items are imported from China .