The method of assessment of discretionary easement land, excluding any buildings, their curtilage, appurtenances, or other improvements, shall be included as a term of the agreement in any discretionary easement acquired by a municipality, and shall fall within a range of values determined as follows:
I. One end of the range shall consist of the value such land would have been assigned under the current use values established pursuant to RSA 79-A, if the land had met the criteria for open space land under that chapter.II. The other end of the range shall be determined by multiplying 75 percent of the land's fair market value by the current equalization rate.III. The local governing body shall have the discretion to set the value of the discretionary easement at a level within this range which it believes reflects the public benefit conferred by the property, under the criteria set forth in RSA 79-C:3 and RSA 79-C:5, I.1996, 176:1, eff. Aug. 2, 1996.