Any agricultural land within one hundred twenty feet of:
that meets the requirements of § 10-6-117 is specifically classified for the purpose of taxation as a riparian buffer strip. The riparian buffer strip shall be assessed at fifty percent of its agricultural income value as determined by §§ 10-6-127 to 10-6-133, inclusive.
In addition, the board of county commissioners may, by resolution, authorize the director of equalization to treat any agricultural land within one hundred twenty feet of a tributary to any lake, river, or stream specified in subdivision (1) and (2) as a riparian buffer strip for the purposes of taxation. The riparian buffer strip shall meet the requirements of § 10-6-117 and shall be assessed at fifty percent of its agricultural income value as determined by §§ 10-6-127 to 10-6-133, inclusive.
SDCL 10-6-116