(a) In lieu of the payments made pursuant to Section 16142, in a county that has adopted farmland security zones pursuant to Section 51296, the Secretary of the Natural Resources Agency shall direct the Controller to pay annually out of the funds appropriated by Section 16140, to each eligible county, city, or city and county, the following amount for each acre of land within its regulatory jurisdiction that is assessed pursuant to Section 423.4 or 426 of the Revenue and Taxation Code, if it was previously assessed under Section 423.4 of that code:

Eight dollars ($8) for land that is within, or within three miles of the boundaries of the sphere of influence of, each incorporated city.

(d) Effective January 1, 2011, if the payment pursuant to this section for the previous fiscal year is less than one-half of the participating county’s actual foregone general fund property tax revenue, the county may make a determination to implement subdivision (b) of Section 51244 and Section 51244.3. The implementation of these sections shall be suspended for any subsequent fiscal year in which the payment for the previous fiscal year exceeds one-half of the foregone general fund property tax revenue.

For purposes of this subdivision, a county’s actual foregone property tax revenue shall be based on the county’s respective share of the general property tax dollars as reflected in the most recent annual report issued by the State Board of Equalization or 20 percent, whichever is higher.