noun
cultivated land; arable land
Refers to land that is being farmed or is suitable for farming; a straightforward agricultural term.
この地域の耕作地は年々減少している。
The cultivated land in this region is decreasing year by year.
田畑 refers to rice paddies and fields collectively, often with a more traditional or rural nuance. 耕作地 is a more technical or formal term for cultivated land.
Compound of 耕作 (こうさく, 'cultivation') and 地 (ち, 'land').