The Collaborative International Dictionary of English v.0.48:

conserving \conserving\ adj.
   protecting or saving from harm or loss; as, serves a
   conserving function.

   Syn: preserving.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Conserve \Con*serve"\, v. t. [imp. & p. p. Conserved; p. pr. &
   vb. n. Conserving.] [F. conserver, L. conservare; con- +
   servare to keep, guard. See Serve.]
   1. To keep in a safe or sound state; to save; to preserve; to
      protect.
      [1913 Webster]

            The amity which . . . they meant to conserve and
            maintain with the emperor.            --Strype.
      [1913 Webster]

   2. To prepare with sugar, etc., for the purpose of
      preservation, as fruits, etc.; to make a conserve of.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

conserving \conserving\ n.
   the preservation and careful management of the environment
   and of natural resources.

   Syn: conservation, conservancy.
        [WordNet 1.5]