How can I effectively install a gravel barrier around my house to prevent erosion and improve drainage?

To effectively install a gravel barrier around your house for erosion prevention and improved drainage, first dig a trench around the perimeter of your house. Place a geotextile fabric in the trench to prevent weeds from growing through the gravel. Then, fill the trench with gravel and compact it to create a stable barrier. Make sure the gravel slopes away from your house to direct water away and improve drainage. Regularly maintain the barrier by checking for erosion and adding more gravel as needed.