However, maintaining all ecological functions, natural services and cultural values will likely require conservation of significantly more than 50% of a landscape.

The program requires conservation, pollution control, worker safety and less use of pesticides.

There was too much of it to require conservation.

It is not necessary for every school to have its own collection, however, especially as old objects require care and conservation.

We have no climate control to preserve our collection, and there are certain problem areas that require extensive conservation.

A bowl may require conservation, or need to be photographed, but its associated pedestal may not.

Farming in such areas requires careful conservation of water, and protection of the soil against erosion.

The marine environment requires protection and conservation.

Many of them are fragile, some endangered and they require special care and conservation.

The station building was renovated from 1998 to 2002, requiring intensive conservation.