Cal. Pub. Res. Code § 10211

“Agricultural conservation easement,” “conservation easement,” or “easement” means an interest in land, less than fee simple, that represents the right to prevent the development or improvement of the land, as specified in Section 815.1 of the Civil Code, for any primary purpose other than agricultural production. The easement shall be granted for the California Farmland Conservancy Program by the owner of a fee simple interest in land to any of the organizations or entities specified in Section 815.3 of the Civil Code. It shall be granted in perpetuity as the equivalent of covenants running with the land.