This chapter shall not affect any interests or rights in real property
which are not conservation easements and shall not affect the rights
of owners to convey any interests in real property which they could
now create under existing law without reference to the terms of this
chapter. Nothing in this chapter shall diminish the powers granted
by any other law to acquire interests or rights in real property by
purchase, gift, eminent domain or otherwise and to use the same for
public purposes. Nothing in this chapter shall be construed to alter
the authority otherwise available to any public body to acquire conservation
easements for these purposes by eminent domain.