Advantages 1. More natural appearance 2. Solar powered 3. Relatively inexpensive 4.Ground cover reduces exposure to the community 5.Topsoil is left intact 6.Eliminates secondary air and water pollution 7.Public acceptance |
Disadvantages 1. A slow process, it can take many growing seasons 2. Plants have short roots, it affects only the top 3-6 feet of soil 3. Trees can affect only the top 10-15 feet of soil 4. Risk of introducing dangerous substances into the food supply if the plants are eaten by people or consumed by food animals |
