He can use this small residential unit to meet desired densities and yet minimize grading to preserve trees.

A tree protection program has been implemented to preserve trees that are near the planned excavation.

Planning powers go considerably further than simply enabling local authorities to preserve trees.

"If you want to keep the land up and the woods up, you have to remove dead wood to preserve trees."

I've done a lot of work to preserve trees.

However, in a region where wood provides 80 percent to 90 percent of energy needs, progress to preserve and replant trees has been slow.

Many Hong Kong residents are trying to preserve the old buildings and trees from redevelopment.

The council was preserving old trees and planting approximately 500 a year.

This has helped preserve the open spaces, historical buildings, and trees that the city values.

They are also encouraged to preserve trees and to develop the housing near shopping and mass transit links.