The regulation of the accumulation and storage of junk and other litter, including, but not limited to, discarded tires, within the unincorporated territory of Lee County is hereby declared to be in the public interest and necessary to promote the public safety, health, welfare, convenience, and enjoyment of public travel; to protect the public investment in public highways; and to preserve and enhance the scenic beauty of lands and the environment. Within the unincorporated areas of Lee County, the Legislature finds and declares that the accumulation and storage of junk and other litter, including, but not limited to, discarded tires and the operation of junkyards, which do not conform to the requirements of this part, are a public nuisance.