To carry out its purposes under section
3701 of this title, the Foundation shall have, in addition to the powers otherwise given it under this chapter, the usual powers of a corporation acting as a trustee in the District of Columbia, including the power—
For purposes of this chapter, an interest in real property shall be treated as including, among other things, easements or other rights for preservation, conservation, protection, or enhancement by and for the public of natural, scenic, historic, scientific, educational, inspirational, or recreational resources. A gift, devise, or bequest may be accepted by the Foundation even though it is encumbered, restricted, or subject to beneficial interests of private persons if any current or future interest therein is for the benefit of the Foundation.