noun
secondary forest; second-growth forest
Ecological term for a forest that has regrown after a major disturbance such as logging or fire.
この地域の二次林は、かつて伐採された後に自然に再生したものです。
The secondary forest in this area regenerated naturally after being logged in the past.
Compound of 二次 (にじ, 'secondary') and 林 (りん, 'forest'). The term is a direct calque of the English 'secondary forest'.