绿化

lǜhuà

(1) [make green by planting trees, flowers, etc.; cloth with greenage]∶使...变为绿色, 广泛种植花草树木, 使环境优美卫生, 防止水土流失

植树造林, 绿化祖国

(2) [afforest]∶种植树木花草

绿化山区