green belt
US /ˈɡriːn belt/
UK /ˈɡriːn belt/

1.
groene gordel, groenstrook
an area of open land around a city, on which building is restricted
:
•
The city council is committed to preserving the green belt.
De gemeenteraad zet zich in voor het behoud van de groene gordel.
•
New housing developments are often restricted in the green belt areas.
Nieuwe woningbouwprojecten zijn vaak beperkt in de groene gordel gebieden.