Hill farmers who planted 120,000 trees and shrubs, restored neglected woods and more than 10 miles (16km) of hedges have been thanked for their work.
Pontbren Farmers’ Group, made up of 10 neighbouring farms near Llanfair Caereinion, Powys, have been working together since 2001.
One of the group’s aims has been to improve shelter for livestock.
Environment Minister John Griffiths launched a report celebrating the farmers’ achievements on Wednesday.