Legal basis: Article 21 of People's Republic of China (PRC) Rural Land Contract Law has a contract period of 30 years. Grassland contract period is 30 to 50 years. The forest land contract period is 30 to 70 years. The contracted period of cultivated land stipulated in the preceding paragraph shall be extended for another 30 years, and the contracted period of grassland and forest land shall be extended accordingly in accordance with the provisions of the preceding paragraph.