Buffers provide multiple benefits for water quality, including stabilizing the bank, absorbing nutrients, preventing erosion and sedimentation into ditches, streams, rivers and lakes, and filtering pollutants such as excess pesticides and fertilizers. In some situations, alternative practices will provide comparable water quality benefits and may be more appropriate to fit site conditions and land management objectives.
Buffers protect your land and visually demonstrate your commitment to conservation.
USDA article on:
What IS A Buffer / Where Are Buffers Needed / Why Do Buffers Work Economically
Minnesota's Buffer Protection Map
MN DNR Buffer Page:
Here you will find information on the Buffer Legislation and the Buffer Mapping process.