There are multiple definitions - click on the translation that matches your context.

环境保护区

名词

full

buffer zone

noun

Definitions of buffer zone

English

a neutral area of land that separates two or more different hostile forces or nations, especially one designed to help them work together or more easily blend or cooperate with each other

A buffer zone between the former warring neighbours has now been officially established.

English

an area of land provided for environmental protection

The proposed buffer zone extends about a mile around the city.