Unless the context clearly indicates otherwise, as used in this chapter:

"Commission" and "state conservation commission" means the agency created hereunder. All former references to "state soil and water conservation committee", "state committee" or "committee" shall be deemed to be references to the "state conservation commission";

"District", or "conservation district" means a governmental subdivision of this state and a public body corporate and politic, organized in accordance with the provisions of chapter 184, Laws of 1973 1st ex. sess., for the purposes, with the powers, and subject to the restrictions set forth in this chapter. All districts created under chapter 184, Laws of 1973 1st ex. sess. shall be known as conservation districts and shall have all the powers and duties set out in chapter 184, Laws of 1973 1st ex. sess. All references in chapter 184, Laws of 1973 1st ex. sess. to "districts", or "soil and water conservation districts" shall be deemed to be reference to "conservation districts";

"Board" and "supervisors" mean the board of supervisors of a conservation district;

"Land occupier" or "occupier of land" includes any person, firm, political subdivision, government agency, municipality, public or private corporation, copartnership, association, or any other entity whatsoever which holds title to, or is in possession of, any lands lying within a district organized under the provisions of chapter 184, Laws of 1973 1st ex. sess., whether as owner, lessee, renter, tenant, or otherwise;

"District elector" or "voter" means a registered voter in the county where the district is located who resides within the district boundary or in the area affected by a petition;

"Due notice" means a notice published at least twice, with at least six days between publications, in a publication of general circulation within the affected area, or if there is no such publication, by posting at a reasonable number of public places within the area, where it is customary to post notices concerning county and municipal affairs. Any hearing held pursuant to due notice may be postponed from time to time without a new notice;

"Renewable natural resources", "natural resources" or "resources" includes land, air, water, vegetation, fish, wildlife, wild rivers, wilderness, natural beauty, scenery and open space;

"Conservation" includes conservation, development, improvement, maintenance, preservation, protection and use, and alleviation of floodwater and sediment damages, and the disposal of excess surface waters.

"Farm and agricultural land" means either (a) land in any contiguous ownership of twenty or more acres devoted primarily to agricultural uses; (b) any parcel of land five acres or more but less than twenty acres devoted primarily to agricultural uses, which has produced a gross income from agricultural uses equivalent to one hundred dollars or more per acre per year for three of the five calendar years preceding the date of application for classification under this chapter; or (c) any parcel of land of less than five acres devoted primarily to agricultural uses which has produced a gross income of one thousand dollars or more per year for three of the five calendar years preceding the date of application for classification under this chapter. Agricultural lands shall also include farm woodlots of less than twenty and more than five acres and the land on which appurtenances necessary to production, preparation or sale of the agricultural products exist in conjunction with the lands producing such products. Agricultural lands shall also include any parcel of land of one to five acres, which is not contiguous, but which otherwise constitutes an integral part of farming operations being conducted on land qualifying under this section as "farm and agricultural lands".