In addition to other powers granted in this chapter, a district and the supervisors thereof shall have the power:
1. To develop comprehensive plans for the conservation of renewable natural resources within the district, which plans shall specify in such detail as may be possible the acts, procedures, performances, and avoidances which are necessary or desirable for the effectuation of such plans, including the specification of engineering operations, methods of cultivation, the growing of vegetation, cropping programs, tillage practices, and changes in the use of land; and
2. To publish such plans and information and bring them to the attention of occupiers of lands within the district.