A piece of land which has been burned in this way remains arable for only two years, after which it must be allowed to lie fallow for ten years. If a farmer attempts to raise crops for a third consecutive year, the harvest is typically only half that of the original harvest.
一塊土地經過燒墾之後，只要連續種上兩年，就得讓土地喘息十年，否則第三年的收穫將只有原來的一半。