A. A map shall be prepared showing the legal description of the assessor\'s parcel number of the property desired to be zoned.
B. A plan for forest management must be prepared or approved as to content for the property by a registered professional forester. Such plan shall provide for the eventual harvest of timber within a reasonable period of time as determined by the preparer of the plan.
C. The parcel shall currently meet the timber-stocking standards as set forth in Section 4561 of the Public Resources Code and the Forest Practice Rules adopted by the State Board of Forestry for the district in which the parcel is located, or the owner must sign an agreement with the board or council to meet such stocking standards and Forest Practice Rules by the fiftieth anniversary of the signing of such agreement. If the parcel is subsequently zoned as timberland preserve under subdivision (a), failure to meet such stocking standards and Forest Practice Rules within this time period provides the board or council with a ground for rezoning of the parcel pursuant to Section 51121.
D. The land area to be zoned timberland preserve shall be in the ownership of one person as defined in Section 38106 of the Revenue and Taxation Code, and shall be comprised of single or contiguous parcels which constitute twenty acres or more in size.
E. The land to be included in timberland preserve shall be Timber Site IV or better.